./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ --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 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:48:06,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:48:06,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:48:06,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:48:06,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:48:06,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:48:06,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:48:06,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:48:06,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:48:06,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:48:06,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:48:06,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:48:06,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:48:06,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:48:06,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:48:06,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:48:06,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:48:06,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:48:06,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:48:06,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:48:06,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:48:06,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:48:06,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:48:06,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:48:06,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:48:06,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:48:06,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:48:06,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:48:06,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:48:06,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:48:06,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:48:06,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:48:06,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:48:06,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:48:06,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:48:06,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:48:06,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:48:06,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:48:06,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:48:06,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:48:06,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:48:06,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:48:06,762 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:48:06,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:48:06,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:48:06,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:48:06,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:48:06,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:48:06,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:48:06,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:48:06,766 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:48:06,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:48:06,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:48:06,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:48:06,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:48:06,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:48:06,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:48:06,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:48:06,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:48:06,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:48:06,769 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:48:06,769 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:48:06,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:48:06,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:48:06,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:48:06,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:48:06,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:48:06,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:48:06,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:48:06,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:48:06,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:48:06,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:48:06,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:48:06,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:48:06,772 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:48:06,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:48:06,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:48:06,773 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_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 [2022-10-17 10:48:07,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:48:07,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:48:07,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:48:07,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:48:07,093 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:48:07,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2022-10-17 10:48:07,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/data/289ef1cb0/501e2a454c0e4e6c963a9fce8a87e2ef/FLAG4f2fc93f4 [2022-10-17 10:48:07,791 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:48:07,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2022-10-17 10:48:07,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/data/289ef1cb0/501e2a454c0e4e6c963a9fce8a87e2ef/FLAG4f2fc93f4 [2022-10-17 10:48:08,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/data/289ef1cb0/501e2a454c0e4e6c963a9fce8a87e2ef [2022-10-17 10:48:08,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:48:08,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:48:08,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:08,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:48:08,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:48:08,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:08,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d44b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08, skipping insertion in model container [2022-10-17 10:48:08,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:08,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:48:08,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:48:08,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:08,780 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:48:08,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:08,926 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:48:08,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08 WrapperNode [2022-10-17 10:48:08,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:08,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:08,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:48:08,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:48:08,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:08,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:08,997 INFO L138 Inliner]: procedures = 365, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2022-10-17 10:48:08,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:08,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:48:08,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:48:08,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:48:09,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:48:09,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:48:09,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:48:09,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:48:09,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (1/1) ... [2022-10-17 10:48:09,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:48:09,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:09,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:09,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:48:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:48:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:48:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:48:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:48:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:48:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:48:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:48:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:48:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:48:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:48:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:48:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:48:09,142 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:48:09,324 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:48:09,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:48:09,591 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:48:09,602 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:48:09,606 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:48:09,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:09 BoogieIcfgContainer [2022-10-17 10:48:09,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:48:09,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:48:09,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:48:09,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:48:09,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:48:08" (1/3) ... [2022-10-17 10:48:09,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ead2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:48:09, skipping insertion in model container [2022-10-17 10:48:09,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:08" (2/3) ... [2022-10-17 10:48:09,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ead2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:48:09, skipping insertion in model container [2022-10-17 10:48:09,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:09" (3/3) ... [2022-10-17 10:48:09,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2022-10-17 10:48:09,631 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:48:09,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:48:09,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-17 10:48:09,642 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:48:09,728 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:48:09,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 114 transitions, 233 flow [2022-10-17 10:48:09,886 INFO L130 PetriNetUnfolder]: 0/113 cut-off events. [2022-10-17 10:48:09,886 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:48:09,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 113 events. 0/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-10-17 10:48:09,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 114 transitions, 233 flow [2022-10-17 10:48:09,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 113 transitions, 229 flow [2022-10-17 10:48:09,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:48:09,926 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3500d499, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:48:09,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-10-17 10:48:09,942 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-10-17 10:48:09,942 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:48:09,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:09,943 INFO L208 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] [2022-10-17 10:48:09,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:09,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:09,950 INFO L85 PathProgramCache]: Analyzing trace with hash -796788612, now seen corresponding path program 1 times [2022-10-17 10:48:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:09,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548334518] [2022-10-17 10:48:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:09,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:10,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:10,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548334518] [2022-10-17 10:48:10,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548334518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:10,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:10,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:10,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507585370] [2022-10-17 10:48:10,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:10,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:48:10,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:10,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:10,422 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 114 [2022-10-17 10:48:10,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:10,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 114 [2022-10-17 10:48:10,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:10,563 INFO L130 PetriNetUnfolder]: 9/235 cut-off events. [2022-10-17 10:48:10,563 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:48:10,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 235 events. 9/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 775 event pairs, 9 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 212. Up to 29 conditions per place. [2022-10-17 10:48:10,568 INFO L137 encePairwiseOnDemand]: 111/114 looper letters, 10 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-10-17 10:48:10,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 112 transitions, 251 flow [2022-10-17 10:48:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:48:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2022-10-17 10:48:10,582 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9239766081871345 [2022-10-17 10:48:10,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2022-10-17 10:48:10,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2022-10-17 10:48:10,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:10,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2022-10-17 10:48:10,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,601 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 229 flow. Second operand 3 states and 316 transitions. [2022-10-17 10:48:10,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 112 transitions, 251 flow [2022-10-17 10:48:10,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 112 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:48:10,610 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 230 flow [2022-10-17 10:48:10,622 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2022-10-17 10:48:10,626 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 0 predicate places. [2022-10-17 10:48:10,626 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 230 flow [2022-10-17 10:48:10,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:10,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:10,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:48:10,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:10,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1918488513, now seen corresponding path program 1 times [2022-10-17 10:48:10,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:10,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178788959] [2022-10-17 10:48:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:10,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:10,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178788959] [2022-10-17 10:48:10,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178788959] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:10,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:10,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526686609] [2022-10-17 10:48:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:10,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:48:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:10,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:10,783 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 114 [2022-10-17 10:48:10,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:10,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 114 [2022-10-17 10:48:10,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:10,870 INFO L130 PetriNetUnfolder]: 9/183 cut-off events. [2022-10-17 10:48:10,876 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:48:10,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 183 events. 9/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 414 event pairs, 9 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 179. Up to 29 conditions per place. [2022-10-17 10:48:10,882 INFO L137 encePairwiseOnDemand]: 111/114 looper letters, 10 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-10-17 10:48:10,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 252 flow [2022-10-17 10:48:10,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:48:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2022-10-17 10:48:10,889 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9239766081871345 [2022-10-17 10:48:10,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2022-10-17 10:48:10,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2022-10-17 10:48:10,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:10,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2022-10-17 10:48:10,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,897 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 230 flow. Second operand 3 states and 316 transitions. [2022-10-17 10:48:10,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 252 flow [2022-10-17 10:48:10,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:48:10,901 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 228 flow [2022-10-17 10:48:10,901 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2022-10-17 10:48:10,902 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, -1 predicate places. [2022-10-17 10:48:10,902 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 228 flow [2022-10-17 10:48:10,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:10,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:10,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:48:10,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:10,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2011316591, now seen corresponding path program 1 times [2022-10-17 10:48:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:10,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296507758] [2022-10-17 10:48:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:10,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:11,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:11,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296507758] [2022-10-17 10:48:11,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296507758] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:11,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:11,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:11,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886202021] [2022-10-17 10:48:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:11,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:48:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:11,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:11,022 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 114 [2022-10-17 10:48:11,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:11,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:11,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 114 [2022-10-17 10:48:11,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:11,079 INFO L130 PetriNetUnfolder]: 4/195 cut-off events. [2022-10-17 10:48:11,080 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:48:11,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 195 events. 4/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 533 event pairs, 2 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 168. Up to 12 conditions per place. [2022-10-17 10:48:11,083 INFO L137 encePairwiseOnDemand]: 110/114 looper letters, 7 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-10-17 10:48:11,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 246 flow [2022-10-17 10:48:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:48:11,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2022-10-17 10:48:11,086 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-10-17 10:48:11,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2022-10-17 10:48:11,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2022-10-17 10:48:11,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:11,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2022-10-17 10:48:11,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:11,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:11,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:11,093 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 228 flow. Second operand 3 states and 323 transitions. [2022-10-17 10:48:11,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 246 flow [2022-10-17 10:48:11,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:48:11,100 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 234 flow [2022-10-17 10:48:11,101 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2022-10-17 10:48:11,103 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, -2 predicate places. [2022-10-17 10:48:11,103 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 234 flow [2022-10-17 10:48:11,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:11,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:11,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:11,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:48:11,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash -576174563, now seen corresponding path program 1 times [2022-10-17 10:48:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:11,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375570687] [2022-10-17 10:48:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:11,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:11,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375570687] [2022-10-17 10:48:11,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375570687] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:11,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:11,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723211684] [2022-10-17 10:48:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:11,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:48:11,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:11,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:48:11,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:11,825 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 114 [2022-10-17 10:48:11,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:11,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:11,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 114 [2022-10-17 10:48:11,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:12,261 INFO L130 PetriNetUnfolder]: 290/964 cut-off events. [2022-10-17 10:48:12,261 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:48:12,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 964 events. 290/964 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5391 event pairs, 130 based on Foata normal form. 0/843 useless extension candidates. Maximal degree in co-relation 1549. Up to 437 conditions per place. [2022-10-17 10:48:12,275 INFO L137 encePairwiseOnDemand]: 98/114 looper letters, 62 selfloop transitions, 41 changer transitions 0/183 dead transitions. [2022-10-17 10:48:12,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 183 transitions, 584 flow [2022-10-17 10:48:12,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:48:12,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:48:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 602 transitions. [2022-10-17 10:48:12,278 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8801169590643275 [2022-10-17 10:48:12,278 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 602 transitions. [2022-10-17 10:48:12,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 602 transitions. [2022-10-17 10:48:12,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:12,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 602 transitions. [2022-10-17 10:48:12,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.33333333333333) internal successors, (602), 6 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:12,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:12,290 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:12,290 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 234 flow. Second operand 6 states and 602 transitions. [2022-10-17 10:48:12,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 183 transitions, 584 flow [2022-10-17 10:48:12,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 183 transitions, 584 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:48:12,299 INFO L231 Difference]: Finished difference. Result has 124 places, 153 transitions, 492 flow [2022-10-17 10:48:12,300 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=492, PETRI_PLACES=124, PETRI_TRANSITIONS=153} [2022-10-17 10:48:12,302 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 7 predicate places. [2022-10-17 10:48:12,302 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 153 transitions, 492 flow [2022-10-17 10:48:12,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:12,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:12,304 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:12,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:48:12,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash -906441389, now seen corresponding path program 1 times [2022-10-17 10:48:12,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:12,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756353550] [2022-10-17 10:48:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:12,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756353550] [2022-10-17 10:48:12,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756353550] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:12,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:12,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994995552] [2022-10-17 10:48:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:12,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:48:12,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:48:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:12,738 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2022-10-17 10:48:12,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 153 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:12,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:12,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2022-10-17 10:48:12,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:13,296 INFO L130 PetriNetUnfolder]: 446/1503 cut-off events. [2022-10-17 10:48:13,296 INFO L131 PetriNetUnfolder]: For 384/416 co-relation queries the response was YES. [2022-10-17 10:48:13,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3351 conditions, 1503 events. 446/1503 cut-off events. For 384/416 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10120 event pairs, 34 based on Foata normal form. 25/1405 useless extension candidates. Maximal degree in co-relation 3292. Up to 453 conditions per place. [2022-10-17 10:48:13,312 INFO L137 encePairwiseOnDemand]: 99/114 looper letters, 129 selfloop transitions, 48 changer transitions 0/263 dead transitions. [2022-10-17 10:48:13,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 263 transitions, 1241 flow [2022-10-17 10:48:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:48:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:48:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2022-10-17 10:48:13,316 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9239766081871345 [2022-10-17 10:48:13,316 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 632 transitions. [2022-10-17 10:48:13,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 632 transitions. [2022-10-17 10:48:13,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:13,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 632 transitions. [2022-10-17 10:48:13,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,324 INFO L175 Difference]: Start difference. First operand has 124 places, 153 transitions, 492 flow. Second operand 6 states and 632 transitions. [2022-10-17 10:48:13,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 263 transitions, 1241 flow [2022-10-17 10:48:13,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 263 transitions, 1241 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:48:13,340 INFO L231 Difference]: Finished difference. Result has 134 places, 199 transitions, 898 flow [2022-10-17 10:48:13,341 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=134, PETRI_TRANSITIONS=199} [2022-10-17 10:48:13,343 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 17 predicate places. [2022-10-17 10:48:13,344 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 199 transitions, 898 flow [2022-10-17 10:48:13,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:13,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:13,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:48:13,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:13,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2126821387, now seen corresponding path program 1 times [2022-10-17 10:48:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:13,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044655310] [2022-10-17 10:48:13,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:13,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:13,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:13,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044655310] [2022-10-17 10:48:13,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044655310] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:13,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:13,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:13,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268982894] [2022-10-17 10:48:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:13,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:48:13,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:13,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:13,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:13,420 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 114 [2022-10-17 10:48:13,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 199 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:13,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 114 [2022-10-17 10:48:13,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:13,608 INFO L130 PetriNetUnfolder]: 209/1027 cut-off events. [2022-10-17 10:48:13,608 INFO L131 PetriNetUnfolder]: For 588/666 co-relation queries the response was YES. [2022-10-17 10:48:13,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2246 conditions, 1027 events. 209/1027 cut-off events. For 588/666 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6936 event pairs, 16 based on Foata normal form. 14/1009 useless extension candidates. Maximal degree in co-relation 2182. Up to 206 conditions per place. [2022-10-17 10:48:13,619 INFO L137 encePairwiseOnDemand]: 110/114 looper letters, 7 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2022-10-17 10:48:13,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 199 transitions, 916 flow [2022-10-17 10:48:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:13,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:48:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2022-10-17 10:48:13,622 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-10-17 10:48:13,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2022-10-17 10:48:13,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2022-10-17 10:48:13,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:13,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2022-10-17 10:48:13,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,626 INFO L175 Difference]: Start difference. First operand has 134 places, 199 transitions, 898 flow. Second operand 3 states and 323 transitions. [2022-10-17 10:48:13,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 199 transitions, 916 flow [2022-10-17 10:48:13,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 199 transitions, 908 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-10-17 10:48:13,659 INFO L231 Difference]: Finished difference. Result has 135 places, 199 transitions, 900 flow [2022-10-17 10:48:13,659 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=135, PETRI_TRANSITIONS=199} [2022-10-17 10:48:13,660 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 18 predicate places. [2022-10-17 10:48:13,660 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 199 transitions, 900 flow [2022-10-17 10:48:13,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:13,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:13,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:48:13,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1656224381, now seen corresponding path program 1 times [2022-10-17 10:48:13,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:13,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903457563] [2022-10-17 10:48:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:13,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:13,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:13,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:13,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903457563] [2022-10-17 10:48:13,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903457563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:13,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:13,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:13,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460056857] [2022-10-17 10:48:13,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:13,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:48:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:13,768 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 114 [2022-10-17 10:48:13,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 199 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:13,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 114 [2022-10-17 10:48:13,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:13,835 INFO L130 PetriNetUnfolder]: 40/319 cut-off events. [2022-10-17 10:48:13,835 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-10-17 10:48:13,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 319 events. 40/319 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1143 event pairs, 4 based on Foata normal form. 2/308 useless extension candidates. Maximal degree in co-relation 526. Up to 68 conditions per place. [2022-10-17 10:48:13,838 INFO L137 encePairwiseOnDemand]: 110/114 looper letters, 7 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2022-10-17 10:48:13,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 456 flow [2022-10-17 10:48:13,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:48:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-10-17 10:48:13,840 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9415204678362573 [2022-10-17 10:48:13,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-10-17 10:48:13,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-10-17 10:48:13,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:13,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-10-17 10:48:13,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,844 INFO L175 Difference]: Start difference. First operand has 135 places, 199 transitions, 900 flow. Second operand 3 states and 322 transitions. [2022-10-17 10:48:13,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 456 flow [2022-10-17 10:48:13,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 406 flow, removed 17 selfloop flow, removed 8 redundant places. [2022-10-17 10:48:13,850 INFO L231 Difference]: Finished difference. Result has 128 places, 132 transitions, 392 flow [2022-10-17 10:48:13,850 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=128, PETRI_TRANSITIONS=132} [2022-10-17 10:48:13,851 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 11 predicate places. [2022-10-17 10:48:13,851 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 132 transitions, 392 flow [2022-10-17 10:48:13,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:13,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:13,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:48:13,852 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2062702493, now seen corresponding path program 1 times [2022-10-17 10:48:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:13,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288672696] [2022-10-17 10:48:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:14,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:14,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288672696] [2022-10-17 10:48:14,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288672696] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:14,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:14,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:14,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203527827] [2022-10-17 10:48:14,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:14,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:48:14,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:14,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:48:14,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:14,262 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 114 [2022-10-17 10:48:14,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:14,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:14,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 114 [2022-10-17 10:48:14,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:14,578 INFO L130 PetriNetUnfolder]: 191/741 cut-off events. [2022-10-17 10:48:14,578 INFO L131 PetriNetUnfolder]: For 126/134 co-relation queries the response was YES. [2022-10-17 10:48:14,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1498 conditions, 741 events. 191/741 cut-off events. For 126/134 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3885 event pairs, 53 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1436. Up to 303 conditions per place. [2022-10-17 10:48:14,585 INFO L137 encePairwiseOnDemand]: 102/114 looper letters, 70 selfloop transitions, 25 changer transitions 4/180 dead transitions. [2022-10-17 10:48:14,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 180 transitions, 718 flow [2022-10-17 10:48:14,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:48:14,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:48:14,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 577 transitions. [2022-10-17 10:48:14,589 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8435672514619883 [2022-10-17 10:48:14,589 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 577 transitions. [2022-10-17 10:48:14,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 577 transitions. [2022-10-17 10:48:14,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:14,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 577 transitions. [2022-10-17 10:48:14,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:14,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:14,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:14,609 INFO L175 Difference]: Start difference. First operand has 128 places, 132 transitions, 392 flow. Second operand 6 states and 577 transitions. [2022-10-17 10:48:14,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 180 transitions, 718 flow [2022-10-17 10:48:14,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 180 transitions, 714 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:48:14,617 INFO L231 Difference]: Finished difference. Result has 136 places, 157 transitions, 576 flow [2022-10-17 10:48:14,617 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=136, PETRI_TRANSITIONS=157} [2022-10-17 10:48:14,620 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 19 predicate places. [2022-10-17 10:48:14,620 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 157 transitions, 576 flow [2022-10-17 10:48:14,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:14,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:14,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:14,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:48:14,621 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:14,622 INFO L85 PathProgramCache]: Analyzing trace with hash 283971730, now seen corresponding path program 1 times [2022-10-17 10:48:14,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:14,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490327460] [2022-10-17 10:48:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:15,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:15,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490327460] [2022-10-17 10:48:15,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490327460] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:15,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:15,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697558531] [2022-10-17 10:48:15,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:15,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:48:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:15,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:48:15,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:15,030 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2022-10-17 10:48:15,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 157 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:15,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:15,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2022-10-17 10:48:15,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:15,452 INFO L130 PetriNetUnfolder]: 232/930 cut-off events. [2022-10-17 10:48:15,452 INFO L131 PetriNetUnfolder]: For 443/451 co-relation queries the response was YES. [2022-10-17 10:48:15,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 930 events. 232/930 cut-off events. For 443/451 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5559 event pairs, 34 based on Foata normal form. 23/950 useless extension candidates. Maximal degree in co-relation 2329. Up to 305 conditions per place. [2022-10-17 10:48:15,462 INFO L137 encePairwiseOnDemand]: 99/114 looper letters, 84 selfloop transitions, 51 changer transitions 21/240 dead transitions. [2022-10-17 10:48:15,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 240 transitions, 1274 flow [2022-10-17 10:48:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:48:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:48:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 607 transitions. [2022-10-17 10:48:15,465 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8874269005847953 [2022-10-17 10:48:15,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 607 transitions. [2022-10-17 10:48:15,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 607 transitions. [2022-10-17 10:48:15,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:15,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 607 transitions. [2022-10-17 10:48:15,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:15,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:15,471 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:15,472 INFO L175 Difference]: Start difference. First operand has 136 places, 157 transitions, 576 flow. Second operand 6 states and 607 transitions. [2022-10-17 10:48:15,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 240 transitions, 1274 flow [2022-10-17 10:48:15,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 240 transitions, 1260 flow, removed 7 selfloop flow, removed 0 redundant places. [2022-10-17 10:48:15,484 INFO L231 Difference]: Finished difference. Result has 145 places, 191 transitions, 946 flow [2022-10-17 10:48:15,485 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=145, PETRI_TRANSITIONS=191} [2022-10-17 10:48:15,486 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 28 predicate places. [2022-10-17 10:48:15,486 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 191 transitions, 946 flow [2022-10-17 10:48:15,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:15,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:15,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:15,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:48:15,487 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:15,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:15,488 INFO L85 PathProgramCache]: Analyzing trace with hash -84631545, now seen corresponding path program 1 times [2022-10-17 10:48:15,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279566460] [2022-10-17 10:48:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:15,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:16,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:16,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279566460] [2022-10-17 10:48:16,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279566460] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:16,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:16,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:48:16,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460640020] [2022-10-17 10:48:16,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:48:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:48:16,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:48:16,125 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 114 [2022-10-17 10:48:16,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 191 transitions, 946 flow. Second operand has 11 states, 11 states have (on average 70.72727272727273) internal successors, (778), 11 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:16,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:16,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 114 [2022-10-17 10:48:16,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:16,675 INFO L130 PetriNetUnfolder]: 272/1088 cut-off events. [2022-10-17 10:48:16,676 INFO L131 PetriNetUnfolder]: For 1120/1126 co-relation queries the response was YES. [2022-10-17 10:48:16,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3229 conditions, 1088 events. 272/1088 cut-off events. For 1120/1126 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7186 event pairs, 46 based on Foata normal form. 13/1091 useless extension candidates. Maximal degree in co-relation 3145. Up to 387 conditions per place. [2022-10-17 10:48:16,687 INFO L137 encePairwiseOnDemand]: 101/114 looper letters, 128 selfloop transitions, 32 changer transitions 38/264 dead transitions. [2022-10-17 10:48:16,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 264 transitions, 1849 flow [2022-10-17 10:48:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-17 10:48:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-10-17 10:48:16,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1249 transitions. [2022-10-17 10:48:16,693 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6444788441692466 [2022-10-17 10:48:16,694 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1249 transitions. [2022-10-17 10:48:16,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1249 transitions. [2022-10-17 10:48:16,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:16,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1249 transitions. [2022-10-17 10:48:16,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 73.47058823529412) internal successors, (1249), 17 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:16,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:16,708 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:16,708 INFO L175 Difference]: Start difference. First operand has 145 places, 191 transitions, 946 flow. Second operand 17 states and 1249 transitions. [2022-10-17 10:48:16,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 264 transitions, 1849 flow [2022-10-17 10:48:16,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 264 transitions, 1795 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-10-17 10:48:16,729 INFO L231 Difference]: Finished difference. Result has 156 places, 189 transitions, 950 flow [2022-10-17 10:48:16,730 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=950, PETRI_PLACES=156, PETRI_TRANSITIONS=189} [2022-10-17 10:48:16,731 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 39 predicate places. [2022-10-17 10:48:16,731 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 189 transitions, 950 flow [2022-10-17 10:48:16,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 70.72727272727273) internal successors, (778), 11 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:16,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:16,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:16,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:48:16,733 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:16,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2124956034, now seen corresponding path program 1 times [2022-10-17 10:48:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:16,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346019017] [2022-10-17 10:48:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:17,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:17,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346019017] [2022-10-17 10:48:17,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346019017] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:17,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:17,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:48:17,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071771298] [2022-10-17 10:48:17,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:17,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:48:17,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:17,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:48:17,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:48:17,308 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 114 [2022-10-17 10:48:17,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 189 transitions, 950 flow. Second operand has 11 states, 11 states have (on average 72.63636363636364) internal successors, (799), 11 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:17,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:48:17,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 114 [2022-10-17 10:48:17,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:48:18,013 INFO L130 PetriNetUnfolder]: 225/835 cut-off events. [2022-10-17 10:48:18,014 INFO L131 PetriNetUnfolder]: For 1005/1012 co-relation queries the response was YES. [2022-10-17 10:48:18,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 835 events. 225/835 cut-off events. For 1005/1012 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4914 event pairs, 29 based on Foata normal form. 13/847 useless extension candidates. Maximal degree in co-relation 2738. Up to 163 conditions per place. [2022-10-17 10:48:18,022 INFO L137 encePairwiseOnDemand]: 96/114 looper letters, 124 selfloop transitions, 66 changer transitions 20/279 dead transitions. [2022-10-17 10:48:18,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 279 transitions, 1950 flow [2022-10-17 10:48:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-17 10:48:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-10-17 10:48:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1326 transitions. [2022-10-17 10:48:18,029 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2022-10-17 10:48:18,029 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1326 transitions. [2022-10-17 10:48:18,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1326 transitions. [2022-10-17 10:48:18,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:18,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1326 transitions. [2022-10-17 10:48:18,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 78.0) internal successors, (1326), 17 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:18,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:18,041 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 114.0) internal successors, (2052), 18 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:18,042 INFO L175 Difference]: Start difference. First operand has 156 places, 189 transitions, 950 flow. Second operand 17 states and 1326 transitions. [2022-10-17 10:48:18,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 279 transitions, 1950 flow [2022-10-17 10:48:18,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 279 transitions, 1820 flow, removed 18 selfloop flow, removed 10 redundant places. [2022-10-17 10:48:18,062 INFO L231 Difference]: Finished difference. Result has 162 places, 202 transitions, 1206 flow [2022-10-17 10:48:18,062 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1206, PETRI_PLACES=162, PETRI_TRANSITIONS=202} [2022-10-17 10:48:18,063 INFO L287 CegarLoopForPetriNet]: 117 programPoint places, 45 predicate places. [2022-10-17 10:48:18,063 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 202 transitions, 1206 flow [2022-10-17 10:48:18,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.63636363636364) internal successors, (799), 11 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:18,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:48:18,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:18,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:48:18,065 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-10-17 10:48:18,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:18,065 INFO L85 PathProgramCache]: Analyzing trace with hash -539415416, now seen corresponding path program 1 times [2022-10-17 10:48:18,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:18,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374752440] [2022-10-17 10:48:18,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:18,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:18,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:18,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:18,162 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:48:18,163 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-10-17 10:48:18,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-10-17 10:48:18,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-10-17 10:48:18,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-10-17 10:48:18,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-10-17 10:48:18,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-10-17 10:48:18,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-10-17 10:48:18,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-10-17 10:48:18,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-10-17 10:48:18,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-10-17 10:48:18,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-10-17 10:48:18,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-10-17 10:48:18,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-10-17 10:48:18,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-10-17 10:48:18,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-10-17 10:48:18,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:48:18,169 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:18,177 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 10:48:18,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:48:18,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:48:18 BasicIcfg [2022-10-17 10:48:18,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:48:18,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:48:18,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:48:18,275 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:48:18,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:09" (3/4) ... [2022-10-17 10:48:18,278 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:48:18,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:48:18,279 INFO L158 Benchmark]: Toolchain (without parser) took 10264.63ms. Allocated memory was 96.5MB in the beginning and 201.3MB in the end (delta: 104.9MB). Free memory was 56.7MB in the beginning and 76.2MB in the end (delta: -19.5MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-10-17 10:48:18,279 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:48:18,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 910.79ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 44.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:48:18,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.00ms. Allocated memory is still 96.5MB. Free memory was 44.0MB in the beginning and 41.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:48:18,283 INFO L158 Benchmark]: Boogie Preprocessor took 32.24ms. Allocated memory is still 96.5MB. Free memory was 41.5MB in the beginning and 39.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:48:18,283 INFO L158 Benchmark]: RCFGBuilder took 578.03ms. Allocated memory is still 96.5MB. Free memory was 39.8MB in the beginning and 63.1MB in the end (delta: -23.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-10-17 10:48:18,284 INFO L158 Benchmark]: TraceAbstraction took 8659.84ms. Allocated memory was 96.5MB in the beginning and 201.3MB in the end (delta: 104.9MB). Free memory was 62.0MB in the beginning and 77.2MB in the end (delta: -15.2MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2022-10-17 10:48:18,284 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 201.3MB. Free memory was 77.2MB in the beginning and 76.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:48:18,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 910.79ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 44.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.00ms. Allocated memory is still 96.5MB. Free memory was 44.0MB in the beginning and 41.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.24ms. Allocated memory is still 96.5MB. Free memory was 41.5MB in the beginning and 39.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.03ms. Allocated memory is still 96.5MB. Free memory was 39.8MB in the beginning and 63.1MB in the end (delta: -23.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8659.84ms. Allocated memory was 96.5MB in the beginning and 201.3MB in the end (delta: 104.9MB). Free memory was 62.0MB in the beginning and 77.2MB in the end (delta: -15.2MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 201.3MB. Free memory was 77.2MB in the beginning and 76.2MB 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: - DataRaceFoundResult [Line: 1241]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={3:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [id={5:0}, m={3:0}, x={0:0}, y={0:0}] [L1235] 0 x = malloc(sizeof(int)) VAL [id={5:0}, m={3:0}, malloc(sizeof(int))={-2:0}, x={-2:0}, x = malloc(sizeof(int))=103, y={0:0}] [L1236] 0 y = malloc(sizeof(int)) VAL [id={5:0}, m={3:0}, malloc(sizeof(int))={-3:0}, x={-2:0}, y={-3:0}, y = malloc(sizeof(int))=104] [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-2:0}, y={-3:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1239] EXPR 0 \read(*x) VAL [\read(*x)=106, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1239] 0 printf("%d\n",*x) VAL [\read(*x)=106, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [*x = 3=101, arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 *y VAL [*x = 3=101, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 \read(*y) VAL [*x = 3=101, \read(*y)=102, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1241] 0 printf("%d\n",*y) VAL [*y = 8=105, \read(*y)=102, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: y = malloc(sizeof(int)) [1236] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1235] * C: *x = 3 [1228] * C: *y = 8 [1229] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: 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: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: 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, 147 locations, 15 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: 8.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 248 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 214 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1720 IncrementalHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 214 mSolverCounterUnsat, 152 mSDtfsCounter, 1720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1206occurred in iteration=11, InterpolantAutomatonStates: 73, 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, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 751 NumberOfCodeBlocks, 751 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 652 ConstructedInterpolants, 0 QuantifiedInterpolants, 1608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-17 10:48:18,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ab260b4-83e5-4a32-9f09-c875a608b144/bin/uautomizer-J5u9QxTXDZ/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