./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:10:03,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:10:03,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:10:03,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:10:03,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:10:03,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:10:03,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:10:03,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:10:03,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:10:03,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:10:03,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:10:03,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:10:03,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:10:03,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:10:03,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:10:03,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:10:03,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:10:03,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:10:03,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:10:03,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:10:03,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:10:03,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:10:03,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:10:03,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:10:03,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:10:03,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:10:03,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:10:03,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:10:03,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:10:03,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:10:03,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:10:03,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:10:03,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:10:03,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:10:03,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:10:03,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:10:03,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:10:03,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:10:03,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:10:03,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:10:03,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:10:03,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:10:03,756 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:10:03,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:10:03,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:10:03,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:10:03,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:10:03,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:10:03,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:10:03,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:10:03,759 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:10:03,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:10:03,760 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:10:03,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:10:03,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:10:03,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:10:03,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:10:03,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:10:03,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:10:03,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:10:03,762 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:10:03,762 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:10:03,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:10:03,762 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:10:03,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:10:03,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:10:03,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:10:03,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:10:03,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:10:03,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:10:03,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:10:03,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:10:03,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:10:03,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:10:03,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:10:03,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:10:03,764 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:10:03,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:10:03,764 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:10:03,765 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:10:04,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:10:04,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:10:04,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:10:04,037 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:10:04,037 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:10:04,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-08-29 03:10:05,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:10:05,370 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:10:05,371 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-08-29 03:10:05,383 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4456a0b/b9b48f2ca6884e589784e5bc689052a6/FLAGdc24d3d41 [2023-08-29 03:10:05,395 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4456a0b/b9b48f2ca6884e589784e5bc689052a6 [2023-08-29 03:10:05,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:10:05,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:10:05,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:10:05,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:10:05,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:10:05,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f419361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05, skipping insertion in model container [2023-08-29 03:10:05,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:10:05,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:10:05,751 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2023-08-29 03:10:05,768 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,769 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,771 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,772 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:10:05,811 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:10:05,855 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i[47038,47051] [2023-08-29 03:10:05,859 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,863 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,865 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,865 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 03:10:05,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:10:05,933 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:10:05,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05 WrapperNode [2023-08-29 03:10:05,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:10:05,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:10:05,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:10:05,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:10:05,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,982 INFO L138 Inliner]: procedures = 279, calls = 51, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 350 [2023-08-29 03:10:05,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:10:05,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:10:05,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:10:05,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:10:05,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:05,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:06,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:06,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:06,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:06,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:06,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:10:06,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:10:06,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:10:06,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:10:06,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (1/1) ... [2023-08-29 03:10:06,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:10:06,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:10:06,052 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) [2023-08-29 03:10:06,067 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 [2023-08-29 03:10:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:10:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 03:10:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:10:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:10:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 03:10:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:10:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:10:06,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:10:06,077 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:10:06,256 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:10:06,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:10:06,769 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:10:06,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:10:06,776 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-29 03:10:06,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:10:06 BoogieIcfgContainer [2023-08-29 03:10:06,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:10:06,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:10:06,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:10:06,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:10:06,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:10:05" (1/3) ... [2023-08-29 03:10:06,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b774b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:10:06, skipping insertion in model container [2023-08-29 03:10:06,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:10:05" (2/3) ... [2023-08-29 03:10:06,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b774b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:10:06, skipping insertion in model container [2023-08-29 03:10:06,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:10:06" (3/3) ... [2023-08-29 03:10:06,783 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-08-29 03:10:06,787 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:10:06,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:10:06,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-29 03:10:06,793 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:10:06,870 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 03:10:06,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 378 transitions, 764 flow [2023-08-29 03:10:06,974 INFO L130 PetriNetUnfolder]: 29/400 cut-off events. [2023-08-29 03:10:06,974 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-29 03:10:06,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 400 events. 29/400 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1003 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 234. Up to 4 conditions per place. [2023-08-29 03:10:06,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 354 places, 378 transitions, 764 flow [2023-08-29 03:10:06,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 378 transitions, 764 flow [2023-08-29 03:10:06,988 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:10:06,994 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 378 transitions, 764 flow [2023-08-29 03:10:06,996 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 378 transitions, 764 flow [2023-08-29 03:10:06,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 378 transitions, 764 flow [2023-08-29 03:10:07,044 INFO L130 PetriNetUnfolder]: 29/400 cut-off events. [2023-08-29 03:10:07,045 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-29 03:10:07,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 400 events. 29/400 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1003 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 234. Up to 4 conditions per place. [2023-08-29 03:10:07,049 INFO L119 LiptonReduction]: Number of co-enabled transitions 7392 [2023-08-29 03:11:24,092 WARN L222 SmtUtils]: Spent 33.94s on a formula simplification. DAG size of input: 145 DAG size of output: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:11:32,945 WARN L222 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:12:08,756 WARN L222 SmtUtils]: Spent 35.81s on a formula simplification. DAG size of input: 145 DAG size of output: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:12:18,891 WARN L222 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:13:30,385 WARN L222 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 184 DAG size of output: 178 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:13:56,250 WARN L222 SmtUtils]: Spent 25.86s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:15:06,321 WARN L222 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 184 DAG size of output: 178 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:15:33,556 WARN L222 SmtUtils]: Spent 27.23s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:18:10,298 WARN L222 SmtUtils]: Spent 2.61m on a formula simplification that was a NOOP. DAG size: 260 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:20:10,459 WARN L222 SmtUtils]: Spent 2.00m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:22:25,520 WARN L222 SmtUtils]: Spent 2.25m on a formula simplification that was a NOOP. DAG size: 260 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:24:31,339 WARN L222 SmtUtils]: Spent 2.10m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:24:31,342 INFO L134 LiptonReduction]: Checked pairs total: 28656 [2023-08-29 03:24:31,343 INFO L136 LiptonReduction]: Total number of compositions: 359 [2023-08-29 03:24:31,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:24:31,356 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;@2a38c624, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:24:31,356 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-08-29 03:24:31,358 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-29 03:24:31,358 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:24:31,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:31,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 03:24:31,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 03:24:31,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 43934, now seen corresponding path program 1 times [2023-08-29 03:24:31,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:31,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196337688] [2023-08-29 03:24:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:31,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:31,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:31,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:31,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196337688] [2023-08-29 03:24:31,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196337688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:31,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:31,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 03:24:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689043321] [2023-08-29 03:24:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:31,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:24:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:24:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:24:31,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 737 [2023-08-29 03:24:31,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 206 flow. Second operand has 2 states, 2 states have (on average 356.0) internal successors, (712), 2 states have internal predecessors, (712), 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) [2023-08-29 03:24:31,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:31,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 737 [2023-08-29 03:24:31,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:32,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:33,079 INFO L130 PetriNetUnfolder]: 106/457 cut-off events. [2023-08-29 03:24:33,080 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2023-08-29 03:24:33,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 457 events. 106/457 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2076 event pairs, 85 based on Foata normal form. 30/433 useless extension candidates. Maximal degree in co-relation 642. Up to 217 conditions per place. [2023-08-29 03:24:33,083 INFO L137 encePairwiseOnDemand]: 715/737 looper letters, 32 selfloop transitions, 0 changer transitions 0/77 dead transitions. [2023-08-29 03:24:33,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 77 transitions, 226 flow [2023-08-29 03:24:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:24:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:24:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 764 transitions. [2023-08-29 03:24:33,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5183175033921302 [2023-08-29 03:24:33,103 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 764 transitions. [2023-08-29 03:24:33,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 764 transitions. [2023-08-29 03:24:33,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:33,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 764 transitions. [2023-08-29 03:24:33,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 382.0) internal successors, (764), 2 states have internal predecessors, (764), 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) [2023-08-29 03:24:33,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 737.0) internal successors, (2211), 3 states have internal predecessors, (2211), 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) [2023-08-29 03:24:33,122 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 737.0) internal successors, (2211), 3 states have internal predecessors, (2211), 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) [2023-08-29 03:24:33,127 INFO L175 Difference]: Start difference. First operand has 86 places, 99 transitions, 206 flow. Second operand 2 states and 764 transitions. [2023-08-29 03:24:33,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 77 transitions, 226 flow [2023-08-29 03:24:33,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 77 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:33,132 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 162 flow [2023-08-29 03:24:33,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=737, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=162, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2023-08-29 03:24:33,137 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2023-08-29 03:24:33,137 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 162 flow [2023-08-29 03:24:33,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 356.0) internal successors, (712), 2 states have internal predecessors, (712), 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) [2023-08-29 03:24:33,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:33,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:33,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:24:33,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 03:24:33,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash -296137646, now seen corresponding path program 1 times [2023-08-29 03:24:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:33,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464429164] [2023-08-29 03:24:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:33,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:33,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464429164] [2023-08-29 03:24:33,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464429164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:33,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:33,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:33,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729452358] [2023-08-29 03:24:33,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:33,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:33,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:33,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:33,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:33,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 737 [2023-08-29 03:24:33,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 352.3333333333333) internal successors, (1057), 3 states have internal predecessors, (1057), 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) [2023-08-29 03:24:33,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:33,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 737 [2023-08-29 03:24:33,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:35,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:37,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:39,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:39,574 INFO L130 PetriNetUnfolder]: 107/460 cut-off events. [2023-08-29 03:24:39,575 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2023-08-29 03:24:39,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 460 events. 107/460 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2077 event pairs, 85 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 683. Up to 217 conditions per place. [2023-08-29 03:24:39,577 INFO L137 encePairwiseOnDemand]: 734/737 looper letters, 33 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-08-29 03:24:39,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 80 transitions, 238 flow [2023-08-29 03:24:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1089 transitions. [2023-08-29 03:24:39,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925373134328358 [2023-08-29 03:24:39,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1089 transitions. [2023-08-29 03:24:39,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1089 transitions. [2023-08-29 03:24:39,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:39,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1089 transitions. [2023-08-29 03:24:39,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 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) [2023-08-29 03:24:39,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 737.0) internal successors, (2948), 4 states have internal predecessors, (2948), 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) [2023-08-29 03:24:39,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 737.0) internal successors, (2948), 4 states have internal predecessors, (2948), 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) [2023-08-29 03:24:39,607 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 162 flow. Second operand 3 states and 1089 transitions. [2023-08-29 03:24:39,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 80 transitions, 238 flow [2023-08-29 03:24:39,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 80 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:39,609 INFO L231 Difference]: Finished difference. Result has 78 places, 78 transitions, 174 flow [2023-08-29 03:24:39,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=737, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=78, PETRI_TRANSITIONS=78} [2023-08-29 03:24:39,610 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -8 predicate places. [2023-08-29 03:24:39,611 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 78 transitions, 174 flow [2023-08-29 03:24:39,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 352.3333333333333) internal successors, (1057), 3 states have internal predecessors, (1057), 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) [2023-08-29 03:24:39,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:39,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:39,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:24:39,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 03:24:39,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash 88845822, now seen corresponding path program 1 times [2023-08-29 03:24:39,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:39,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804190368] [2023-08-29 03:24:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:39,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:39,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:39,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:39,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804190368] [2023-08-29 03:24:39,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804190368] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:39,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:39,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:24:39,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218615772] [2023-08-29 03:24:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:39,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:39,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:39,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:39,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:39,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 737 [2023-08-29 03:24:39,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 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) [2023-08-29 03:24:39,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:39,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 737 [2023-08-29 03:24:39,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:41,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:43,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:45,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:47,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 03:24:47,979 INFO L130 PetriNetUnfolder]: 107/462 cut-off events. [2023-08-29 03:24:47,979 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2023-08-29 03:24:47,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 462 events. 107/462 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2082 event pairs, 85 based on Foata normal form. 2/412 useless extension candidates. Maximal degree in co-relation 692. Up to 220 conditions per place. [2023-08-29 03:24:47,980 INFO L137 encePairwiseOnDemand]: 734/737 looper letters, 32 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-08-29 03:24:47,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 244 flow [2023-08-29 03:24:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2023-08-29 03:24:47,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49163274536408863 [2023-08-29 03:24:47,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2023-08-29 03:24:47,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2023-08-29 03:24:47,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:47,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2023-08-29 03:24:47,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 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) [2023-08-29 03:24:47,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 737.0) internal successors, (2948), 4 states have internal predecessors, (2948), 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) [2023-08-29 03:24:47,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 737.0) internal successors, (2948), 4 states have internal predecessors, (2948), 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) [2023-08-29 03:24:47,989 INFO L175 Difference]: Start difference. First operand has 78 places, 78 transitions, 174 flow. Second operand 3 states and 1087 transitions. [2023-08-29 03:24:47,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 244 flow [2023-08-29 03:24:47,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 79 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:24:47,991 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 186 flow [2023-08-29 03:24:47,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=737, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2023-08-29 03:24:47,992 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2023-08-29 03:24:47,992 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 186 flow [2023-08-29 03:24:47,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 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) [2023-08-29 03:24:47,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:47,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:47,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:24:47,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-29 03:24:47,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:47,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1598245562, now seen corresponding path program 1 times [2023-08-29 03:24:47,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:47,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225992404] [2023-08-29 03:24:47,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:47,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:48,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-29 03:24:48,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666587671] [2023-08-29 03:24:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:48,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:24:48,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:24:48,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:24:48,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:24:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:48,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-29 03:24:48,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:24:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:24:48,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:24:48,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:48,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225992404] [2023-08-29 03:24:48,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-29 03:24:48,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666587671] [2023-08-29 03:24:48,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666587671] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:48,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:48,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:24:48,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901106398] [2023-08-29 03:24:48,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:48,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:48,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:48,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:48,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:48,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 737 [2023-08-29 03:24:48,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 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) [2023-08-29 03:24:48,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:48,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 737 [2023-08-29 03:24:48,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:49,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] Killed by 15