./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:02:44,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:02:44,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:02:44,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:02:44,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:02:44,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:02:44,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:02:44,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:02:44,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:02:44,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:02:44,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:02:44,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:02:44,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:02:44,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:02:44,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:02:44,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:02:44,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:02:44,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:02:44,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:02:44,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:02:44,775 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:02:44,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:02:44,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:02:44,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:02:44,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:02:44,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:02:44,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:02:44,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:02:44,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:02:44,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:02:44,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:02:44,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:02:44,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:02:44,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:02:44,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:02:44,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:02:44,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:02:44,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:02:44,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:02:44,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:02:44,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:02:44,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:02:44,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:02:44,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:02:44,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:02:44,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:02:44,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:02:44,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:02:44,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:02:44,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:02:44,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:02:44,832 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:02:44,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:02:44,833 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:02:44,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:02:44,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:02:44,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:02:44,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:02:44,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:02:44,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:02:44,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:02:44,834 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:02:44,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:02:44,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:02:44,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:02:44,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:02:44,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:02:44,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:02:44,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:02:44,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:02:44,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:02:44,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:02:44,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:02:44,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:02:44,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:02:44,837 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:02:44,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:02:44,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:02:44,837 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2022-04-18 16:02:45,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:02:45,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:02:45,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:02:45,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:02:45,125 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:02:45,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i [2022-04-18 16:02:45,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00b328f3/16ffe9f1150541ef9b5b9842bf5b8747/FLAGad12b8625 [2022-04-18 16:02:45,701 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:02:45,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i [2022-04-18 16:02:45,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00b328f3/16ffe9f1150541ef9b5b9842bf5b8747/FLAGad12b8625 [2022-04-18 16:02:46,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00b328f3/16ffe9f1150541ef9b5b9842bf5b8747 [2022-04-18 16:02:46,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:02:46,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:02:46,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:02:46,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:02:46,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:02:46,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba2b76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46, skipping insertion in model container [2022-04-18 16:02:46,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:02:46,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:02:46,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i[945,958] [2022-04-18 16:02:46,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:02:46,482 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:02:46,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix017.oepc.i[945,958] [2022-04-18 16:02:46,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:02:46,608 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:02:46,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46 WrapperNode [2022-04-18 16:02:46,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:02:46,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:02:46,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:02:46,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:02:46,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,716 INFO L137 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 520 [2022-04-18 16:02:46,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:02:46,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:02:46,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:02:46,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:02:46,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:02:46,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:02:46,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:02:46,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:02:46,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (1/1) ... [2022-04-18 16:02:46,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:02:46,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:02:46,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:02:46,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:02:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:02:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:02:46,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:02:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:02:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:02:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 16:02:46,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 16:02:46,898 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 16:02:46,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 16:02:46,899 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 16:02:46,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 16:02:46,899 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-04-18 16:02:46,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-04-18 16:02:46,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:02:46,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:02:46,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:02:46,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:02:46,902 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:02:47,115 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:02:47,125 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:02:48,420 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:03:21,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:03:21,997 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:03:22,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:03:22 BoogieIcfgContainer [2022-04-18 16:03:22,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:03:22,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:03:22,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:03:22,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:03:22,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:02:46" (1/3) ... [2022-04-18 16:03:22,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b48aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:03:22, skipping insertion in model container [2022-04-18 16:03:22,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:02:46" (2/3) ... [2022-04-18 16:03:22,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b48aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:03:22, skipping insertion in model container [2022-04-18 16:03:22,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:03:22" (3/3) ... [2022-04-18 16:03:22,009 INFO L111 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2022-04-18 16:03:22,013 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:03:22,013 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:03:22,013 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 284 error locations. [2022-04-18 16:03:22,013 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:03:27,988 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 16:03:28,028 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:03:28,035 INFO L340 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 [2022-04-18 16:03:28,037 INFO L341 AbstractCegarLoop]: Starting to check reachability of 534 error locations. [2022-04-18 16:03:28,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 425 transitions, 870 flow [2022-04-18 16:03:28,418 INFO L129 PetriNetUnfolder]: 2/421 cut-off events. [2022-04-18 16:03:28,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:03:28,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 421 events. 2/421 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2426 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 378. Up to 2 conditions per place. [2022-04-18 16:03:28,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 436 places, 425 transitions, 870 flow [2022-04-18 16:03:28,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 421 transitions, 854 flow [2022-04-18 16:03:28,763 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2022-04-18 16:03:28,763 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:03:28,764 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:03:28,764 INFO L255 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] [2022-04-18 16:03:28,766 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 530 more)] === [2022-04-18 16:03:28,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:03:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1430475324, now seen corresponding path program 1 times [2022-04-18 16:03:28,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:03:28,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293126858] [2022-04-18 16:03:28,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:03:28,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:03:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:03:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:03:29,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:03:29,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293126858] [2022-04-18 16:03:29,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293126858] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:03:29,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:03:29,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 16:03:29,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603105102] [2022-04-18 16:03:29,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:03:29,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 16:03:29,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:03:29,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 16:03:29,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 16:03:29,227 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 425 [2022-04-18 16:03:29,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 421 transitions, 854 flow. Second operand has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:29,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:03:29,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 425 [2022-04-18 16:03:29,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:03:41,183 INFO L129 PetriNetUnfolder]: 9295/30120 cut-off events. [2022-04-18 16:03:41,184 INFO L130 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-04-18 16:03:41,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42888 conditions, 30120 events. 9295/30120 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 392243 event pairs, 9295 based on Foata normal form. 1407/29834 useless extension candidates. Maximal degree in co-relation 42830. Up to 12451 conditions per place. [2022-04-18 16:03:41,491 INFO L132 encePairwiseOnDemand]: 141/425 looper letters, 24 selfloop transitions, 0 changer transitions 0/136 dead transitions. [2022-04-18 16:03:41,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 136 transitions, 332 flow [2022-04-18 16:03:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 16:03:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 16:03:41,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 540 transitions. [2022-04-18 16:03:41,516 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2022-04-18 16:03:41,517 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 540 transitions. [2022-04-18 16:03:41,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 540 transitions. [2022-04-18 16:03:41,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:03:41,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 540 transitions. [2022-04-18 16:03:41,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 270.0) internal successors, (540), 2 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:41,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:41,535 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:41,537 INFO L186 Difference]: Start difference. First operand has 432 places, 421 transitions, 854 flow. Second operand 2 states and 540 transitions. [2022-04-18 16:03:41,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 136 transitions, 332 flow [2022-04-18 16:03:41,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 136 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:03:41,545 INFO L242 Difference]: Finished difference. Result has 146 places, 136 transitions, 280 flow [2022-04-18 16:03:41,547 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=280, PETRI_PLACES=146, PETRI_TRANSITIONS=136} [2022-04-18 16:03:41,553 INFO L335 CegarLoopForPetriNet]: 432 programPoint places, -286 predicate places. [2022-04-18 16:03:41,553 INFO L478 AbstractCegarLoop]: Abstraction has has 146 places, 136 transitions, 280 flow [2022-04-18 16:03:41,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:41,554 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:03:41,555 INFO L255 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] [2022-04-18 16:03:41,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:03:41,555 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 530 more)] === [2022-04-18 16:03:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:03:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 722048189, now seen corresponding path program 1 times [2022-04-18 16:03:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:03:41,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384740241] [2022-04-18 16:03:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:03:41,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:03:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:03:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:03:41,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:03:41,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384740241] [2022-04-18 16:03:41,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384740241] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:03:41,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:03:41,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:03:41,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28618832] [2022-04-18 16:03:41,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:03:41,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:03:41,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:03:41,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:03:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:03:41,874 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 425 [2022-04-18 16:03:41,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 136 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:41,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:03:41,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 425 [2022-04-18 16:03:41,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:03:55,743 INFO L129 PetriNetUnfolder]: 14145/41398 cut-off events. [2022-04-18 16:03:55,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:03:55,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60513 conditions, 41398 events. 14145/41398 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1006. Compared 519422 event pairs, 4445 based on Foata normal form. 0/39096 useless extension candidates. Maximal degree in co-relation 60510. Up to 12700 conditions per place. [2022-04-18 16:03:56,047 INFO L132 encePairwiseOnDemand]: 423/425 looper letters, 42 selfloop transitions, 1 changer transitions 0/152 dead transitions. [2022-04-18 16:03:56,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 152 transitions, 398 flow [2022-04-18 16:03:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:03:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:03:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2022-04-18 16:03:56,051 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.3003921568627451 [2022-04-18 16:03:56,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2022-04-18 16:03:56,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2022-04-18 16:03:56,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:03:56,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2022-04-18 16:03:56,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:56,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:56,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:56,059 INFO L186 Difference]: Start difference. First operand has 146 places, 136 transitions, 280 flow. Second operand 3 states and 383 transitions. [2022-04-18 16:03:56,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 152 transitions, 398 flow [2022-04-18 16:03:56,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 152 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:03:56,066 INFO L242 Difference]: Finished difference. Result has 147 places, 135 transitions, 280 flow [2022-04-18 16:03:56,067 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=147, PETRI_TRANSITIONS=135} [2022-04-18 16:03:56,067 INFO L335 CegarLoopForPetriNet]: 432 programPoint places, -285 predicate places. [2022-04-18 16:03:56,068 INFO L478 AbstractCegarLoop]: Abstraction has has 147 places, 135 transitions, 280 flow [2022-04-18 16:03:56,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:56,068 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:03:56,068 INFO L255 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] [2022-04-18 16:03:56,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:03:56,069 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 530 more)] === [2022-04-18 16:03:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:03:56,070 INFO L85 PathProgramCache]: Analyzing trace with hash -52630959, now seen corresponding path program 1 times [2022-04-18 16:03:56,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:03:56,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899159421] [2022-04-18 16:03:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:03:56,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:03:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:03:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:03:56,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:03:56,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899159421] [2022-04-18 16:03:56,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899159421] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:03:56,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:03:56,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:03:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423617282] [2022-04-18 16:03:56,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:03:56,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:03:56,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:03:56,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:03:56,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:03:56,366 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 425 [2022-04-18 16:03:56,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 135 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:03:56,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:03:56,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 425 [2022-04-18 16:03:56,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand