./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/36-apron_17-traces-rpb-litmus_unknown_1_neg.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 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:44:09,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:44:09,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:44:09,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:44:09,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:44:09,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:44:09,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:44:09,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:44:09,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:44:09,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:44:09,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:44:09,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:44:09,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:44:09,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:44:09,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:44:09,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:44:09,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:44:09,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:44:09,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:44:09,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:44:09,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:44:09,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:44:09,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:44:09,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:44:09,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:44:09,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:44:09,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:44:09,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:44:09,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:44:09,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:44:09,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:44:09,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:44:09,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:44:09,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:44:09,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:44:09,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:44:09,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:44:09,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:44:09,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:44:09,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:44:09,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:44:09,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:44:09,715 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:44:09,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:44:09,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:44:09,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:44:09,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:44:09,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:44:09,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:44:09,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:44:09,719 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:44:09,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:44:09,720 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:44:09,720 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:44:09,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:44:09,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:44:09,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:44:09,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:44:09,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:44:09,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:44:09,722 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:44:09,722 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:44:09,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:44:09,722 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:44:09,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:44:09,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:44:09,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:44:09,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:44:09,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:44:09,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:44:09,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:44:09,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:44:09,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:44:09,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:44:09,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:44:09,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:44:09,726 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:44:09,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:44:09,726 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:44:09,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:44:10,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:44:10,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:44:10,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:44:10,101 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:44:10,102 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:44:10,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-29 18:44:11,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:44:11,497 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:44:11,498 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-29 18:44:11,511 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f45afc28/cffadcac9f08413899c70c3d65375acf/FLAG959c5603d [2023-08-29 18:44:11,534 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f45afc28/cffadcac9f08413899c70c3d65375acf [2023-08-29 18:44:11,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:44:11,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:44:11,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:44:11,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:44:11,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:44:11,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:44:11" (1/1) ... [2023-08-29 18:44:11,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760a9f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:11, skipping insertion in model container [2023-08-29 18:44:11,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:44:11" (1/1) ... [2023-08-29 18:44:11,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:44:11,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:44:11,770 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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2023-08-29 18:44:11,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:44:11,958 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:44:11,970 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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2023-08-29 18:44:12,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:44:12,052 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:44:12,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12 WrapperNode [2023-08-29 18:44:12,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:44:12,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:44:12,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:44:12,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:44:12,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,118 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2023-08-29 18:44:12,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:44:12,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:44:12,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:44:12,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:44:12,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:44:12,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:44:12,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:44:12,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:44:12,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (1/1) ... [2023-08-29 18:44:12,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:44:12,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:44:12,202 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 18:44:12,228 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 18:44:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:44:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:44:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:44:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:44:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:44:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:44:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:44:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:44:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:44:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:44:12,251 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 18:44:12,434 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:44:12,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:44:12,589 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:44:12,596 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:44:12,596 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 18:44:12,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:44:12 BoogieIcfgContainer [2023-08-29 18:44:12,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:44:12,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:44:12,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:44:12,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:44:12,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:44:11" (1/3) ... [2023-08-29 18:44:12,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeefce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:44:12, skipping insertion in model container [2023-08-29 18:44:12,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:44:12" (2/3) ... [2023-08-29 18:44:12,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeefce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:44:12, skipping insertion in model container [2023-08-29 18:44:12,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:44:12" (3/3) ... [2023-08-29 18:44:12,606 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-29 18:44:12,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:44:12,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:44:12,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 18:44:12,620 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:44:12,657 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 18:44:12,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 85 transitions, 175 flow [2023-08-29 18:44:12,722 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2023-08-29 18:44:12,722 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:44:12,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 2/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 18:44:12,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 85 transitions, 175 flow [2023-08-29 18:44:12,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 84 transitions, 171 flow [2023-08-29 18:44:12,732 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:44:12,756 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 171 flow [2023-08-29 18:44:12,761 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 171 flow [2023-08-29 18:44:12,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 171 flow [2023-08-29 18:44:12,782 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2023-08-29 18:44:12,782 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:44:12,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 2/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 18:44:12,784 INFO L119 LiptonReduction]: Number of co-enabled transitions 1050 [2023-08-29 18:44:15,052 INFO L134 LiptonReduction]: Checked pairs total: 3662 [2023-08-29 18:44:15,053 INFO L136 LiptonReduction]: Total number of compositions: 63 [2023-08-29 18:44:15,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:44:15,070 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;@25a95eb0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:44:15,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-29 18:44:15,074 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-29 18:44:15,074 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:44:15,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:44:15,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:44:15,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:44:15,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:44:15,080 INFO L85 PathProgramCache]: Analyzing trace with hash -128688435, now seen corresponding path program 1 times [2023-08-29 18:44:15,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:44:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903729293] [2023-08-29 18:44:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:44:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:44:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:44:15,321 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 18:44:15,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:44:15,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903729293] [2023-08-29 18:44:15,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903729293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:44:15,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:44:15,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:44:15,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290472829] [2023-08-29 18:44:15,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:44:15,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:44:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:44:15,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:44:15,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:44:15,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 148 [2023-08-29 18:44:15,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 18:44:15,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:44:15,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 148 [2023-08-29 18:44:15,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:44:15,505 INFO L130 PetriNetUnfolder]: 77/212 cut-off events. [2023-08-29 18:44:15,505 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:44:15,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 212 events. 77/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 994 event pairs, 32 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 385. Up to 109 conditions per place. [2023-08-29 18:44:15,510 INFO L137 encePairwiseOnDemand]: 142/148 looper letters, 25 selfloop transitions, 4 changer transitions 2/37 dead transitions. [2023-08-29 18:44:15,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 139 flow [2023-08-29 18:44:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:44:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:44:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-08-29 18:44:15,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5968468468468469 [2023-08-29 18:44:15,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-08-29 18:44:15,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-08-29 18:44:15,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:44:15,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-08-29 18:44:15,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 18:44:15,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:15,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:15,546 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 59 flow. Second operand 3 states and 265 transitions. [2023-08-29 18:44:15,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 139 flow [2023-08-29 18:44:15,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:44:15,553 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 82 flow [2023-08-29 18:44:15,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-29 18:44:15,558 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-29 18:44:15,559 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 82 flow [2023-08-29 18:44:15,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 18:44:15,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:44:15,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:44:15,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:44:15,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:44:15,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:44:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash 306214503, now seen corresponding path program 1 times [2023-08-29 18:44:15,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:44:15,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416257813] [2023-08-29 18:44:15,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:44:15,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:44:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:44:15,670 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 18:44:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:44:15,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416257813] [2023-08-29 18:44:15,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416257813] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:44:15,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:44:15,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:44:15,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893269433] [2023-08-29 18:44:15,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:44:15,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:44:15,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:44:15,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:44:15,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:44:15,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 148 [2023-08-29 18:44:15,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 18:44:15,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:44:15,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 148 [2023-08-29 18:44:15,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:44:15,750 INFO L130 PetriNetUnfolder]: 80/220 cut-off events. [2023-08-29 18:44:15,751 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-29 18:44:15,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 220 events. 80/220 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1040 event pairs, 59 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 452. Up to 163 conditions per place. [2023-08-29 18:44:15,752 INFO L137 encePairwiseOnDemand]: 143/148 looper letters, 23 selfloop transitions, 4 changer transitions 2/36 dead transitions. [2023-08-29 18:44:15,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 156 flow [2023-08-29 18:44:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:44:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:44:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-29 18:44:15,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5653153153153153 [2023-08-29 18:44:15,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-29 18:44:15,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-29 18:44:15,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:44:15,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-29 18:44:15,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 18:44:15,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:15,758 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:15,758 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 82 flow. Second operand 3 states and 251 transitions. [2023-08-29 18:44:15,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 156 flow [2023-08-29 18:44:15,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:44:15,760 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 106 flow [2023-08-29 18:44:15,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2023-08-29 18:44:15,761 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 18:44:15,762 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 106 flow [2023-08-29 18:44:15,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 18:44:15,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:44:15,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:44:15,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:44:15,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:44:15,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:44:15,763 INFO L85 PathProgramCache]: Analyzing trace with hash 296279994, now seen corresponding path program 1 times [2023-08-29 18:44:15,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:44:15,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566962848] [2023-08-29 18:44:15,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:44:15,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:44:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:44:15,798 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 18:44:15,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:44:15,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566962848] [2023-08-29 18:44:15,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566962848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:44:15,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:44:15,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:44:15,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249853098] [2023-08-29 18:44:15,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:44:15,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:44:15,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:44:15,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:44:15,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:44:15,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 148 [2023-08-29 18:44:15,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:44:15,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:44:15,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 148 [2023-08-29 18:44:15,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:44:15,879 INFO L130 PetriNetUnfolder]: 88/231 cut-off events. [2023-08-29 18:44:15,880 INFO L131 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2023-08-29 18:44:15,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 231 events. 88/231 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1097 event pairs, 52 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 516. Up to 172 conditions per place. [2023-08-29 18:44:15,881 INFO L137 encePairwiseOnDemand]: 142/148 looper letters, 24 selfloop transitions, 7 changer transitions 7/46 dead transitions. [2023-08-29 18:44:15,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 222 flow [2023-08-29 18:44:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:44:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:44:15,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-29 18:44:15,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-29 18:44:15,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-29 18:44:15,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-29 18:44:15,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:44:15,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-29 18:44:15,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 18:44:15,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:15,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:15,887 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 106 flow. Second operand 3 states and 259 transitions. [2023-08-29 18:44:15,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 222 flow [2023-08-29 18:44:15,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 208 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 18:44:15,889 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 133 flow [2023-08-29 18:44:15,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-08-29 18:44:15,890 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2023-08-29 18:44:15,890 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 133 flow [2023-08-29 18:44:15,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:44:15,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:44:15,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:44:15,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:44:15,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:44:15,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:44:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2070543308, now seen corresponding path program 1 times [2023-08-29 18:44:15,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:44:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367687312] [2023-08-29 18:44:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:44:15,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:44:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:44:16,024 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 18:44:16,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:44:16,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367687312] [2023-08-29 18:44:16,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367687312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:44:16,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:44:16,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:44:16,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262638749] [2023-08-29 18:44:16,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:44:16,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:44:16,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:44:16,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:44:16,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:44:16,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 148 [2023-08-29 18:44:16,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 18:44:16,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:44:16,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 148 [2023-08-29 18:44:16,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:44:16,105 INFO L130 PetriNetUnfolder]: 58/192 cut-off events. [2023-08-29 18:44:16,106 INFO L131 PetriNetUnfolder]: For 82/86 co-relation queries the response was YES. [2023-08-29 18:44:16,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 192 events. 58/192 cut-off events. For 82/86 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 865 event pairs, 14 based on Foata normal form. 10/196 useless extension candidates. Maximal degree in co-relation 447. Up to 104 conditions per place. [2023-08-29 18:44:16,110 INFO L137 encePairwiseOnDemand]: 141/148 looper letters, 14 selfloop transitions, 5 changer transitions 16/43 dead transitions. [2023-08-29 18:44:16,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 218 flow [2023-08-29 18:44:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:44:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:44:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-29 18:44:16,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.581081081081081 [2023-08-29 18:44:16,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-29 18:44:16,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-29 18:44:16,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:44:16,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-29 18:44:16,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 18:44:16,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:16,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 18:44:16,115 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 133 flow. Second operand 3 states and 258 transitions. [2023-08-29 18:44:16,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 218 flow [2023-08-29 18:44:16,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 192 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-29 18:44:16,118 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 97 flow [2023-08-29 18:44:16,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-08-29 18:44:16,120 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 18:44:16,120 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 97 flow [2023-08-29 18:44:16,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 18:44:16,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:44:16,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:44:16,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:44:16,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:44:16,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:44:16,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1073866754, now seen corresponding path program 1 times [2023-08-29 18:44:16,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:44:16,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231325446] [2023-08-29 18:44:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:44:16,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:44:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:44:16,331 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 18:44:16,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:44:16,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231325446] [2023-08-29 18:44:16,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231325446] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:44:16,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:44:16,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:44:16,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207733893] [2023-08-29 18:44:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:44:16,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 18:44:16,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:44:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 18:44:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 18:44:16,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 148 [2023-08-29 18:44:16,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 18:44:16,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:44:16,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 148 [2023-08-29 18:44:16,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:44:16,410 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2023-08-29 18:44:16,410 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 18:44:16,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 29 events. 0/29 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2023-08-29 18:44:16,411 INFO L137 encePairwiseOnDemand]: 144/148 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-29 18:44:16,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 19 transitions, 92 flow [2023-08-29 18:44:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:44:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:44:16,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2023-08-29 18:44:16,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388513513513513 [2023-08-29 18:44:16,413 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2023-08-29 18:44:16,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2023-08-29 18:44:16,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:44:16,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2023-08-29 18:44:16,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 18:44:16,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 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 18:44:16,417 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 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 18:44:16,417 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 97 flow. Second operand 4 states and 319 transitions. [2023-08-29 18:44:16,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 19 transitions, 92 flow [2023-08-29 18:44:16,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 70 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-29 18:44:16,421 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-29 18:44:16,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-29 18:44:16,423 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2023-08-29 18:44:16,423 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-29 18:44:16,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 18:44:16,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-08-29 18:44:16,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-29 18:44:16,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-29 18:44:16,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-29 18:44:16,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-29 18:44:16,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:44:16,428 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 18:44:16,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:44:16,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:44:16,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:44:16 BasicIcfg [2023-08-29 18:44:16,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:44:16,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:44:16,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:44:16,446 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:44:16,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:44:12" (3/4) ... [2023-08-29 18:44:16,448 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:44:16,454 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 18:44:16,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-29 18:44:16,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:44:16,460 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:44:16,460 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:44:16,496 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:44:16,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:44:16,496 INFO L158 Benchmark]: Toolchain (without parser) took 4959.03ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 64.9MB in the beginning and 79.8MB in the end (delta: -14.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,497 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:44:16,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.51ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 45.6MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.34ms. Allocated memory is still 86.0MB. Free memory was 45.6MB in the beginning and 65.2MB in the end (delta: -19.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,497 INFO L158 Benchmark]: Boogie Preprocessor took 46.25ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,497 INFO L158 Benchmark]: RCFGBuilder took 431.31ms. Allocated memory is still 86.0MB. Free memory was 64.0MB in the beginning and 50.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,498 INFO L158 Benchmark]: TraceAbstraction took 3845.63ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 50.1MB in the beginning and 83.0MB in the end (delta: -32.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,498 INFO L158 Benchmark]: Witness Printer took 50.51ms. Allocated memory is still 125.8MB. Free memory was 83.0MB in the beginning and 79.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:44:16,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.51ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 45.6MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.34ms. Allocated memory is still 86.0MB. Free memory was 45.6MB in the beginning and 65.2MB in the end (delta: -19.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.25ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.31ms. Allocated memory is still 86.0MB. Free memory was 64.0MB in the beginning and 50.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3845.63ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 50.1MB in the beginning and 83.0MB in the end (delta: -32.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 50.51ms. Allocated memory is still 125.8MB. Free memory was 83.0MB in the beginning and 79.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 86 PlacesBefore, 30 PlacesAfterwards, 84 TransitionsBefore, 28 TransitionsAfterwards, 1050 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 3662 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1392, independent: 1138, independent conditional: 0, independent unconditional: 1138, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 554, independent: 512, independent conditional: 0, independent unconditional: 512, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1392, independent: 626, independent conditional: 0, independent unconditional: 626, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 554, unknown conditional: 0, unknown unconditional: 554] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 10 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:44:16,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE