./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:23:45,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:23:45,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:23:45,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:23:45,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:23:45,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:23:45,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:23:45,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:23:45,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:23:45,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:23:45,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:23:45,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:23:45,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:23:45,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:23:45,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:23:45,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:23:45,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:23:45,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:23:45,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:23:45,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:23:45,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:23:45,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:23:45,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:23:45,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:23:45,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:23:45,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:23:45,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:23:45,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:23:45,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:23:45,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:23:45,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:23:45,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:23:45,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:23:45,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:23:45,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:23:45,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:23:45,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:23:45,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:23:45,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:23:45,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:23:45,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:23:45,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:23:45,706 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:23:45,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:23:45,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:23:45,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:23:45,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:23:45,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:23:45,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:23:45,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:23:45,710 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:23:45,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:23:45,711 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:23:45,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:23:45,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:23:45,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:23:45,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:23:45,712 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:23:45,712 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:23:45,712 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:23:45,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:23:45,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:23:45,713 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:23:45,713 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:23:45,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:23:45,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:23:45,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:23:45,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:45,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:23:45,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:23:45,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:23:45,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:23:45,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:23:45,715 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:23:45,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:23:45,715 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:23:45,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:23:46,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:23:46,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:23:46,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:23:46,068 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:23:46,068 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:23:46,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2023-09-01 00:23:47,350 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:23:47,627 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:23:47,628 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2023-09-01 00:23:47,639 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/813a8f841/eb5ebed61917499aa68bcfc85161622a/FLAGf80ac4a0c [2023-09-01 00:23:47,653 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/813a8f841/eb5ebed61917499aa68bcfc85161622a [2023-09-01 00:23:47,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:23:47,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:23:47,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:47,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:23:47,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:23:47,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:47" (1/1) ... [2023-09-01 00:23:47,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72986c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:47, skipping insertion in model container [2023-09-01 00:23:47,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:47" (1/1) ... [2023-09-01 00:23:47,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:23:47,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:23:47,850 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/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2023-09-01 00:23:47,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:48,005 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:23:48,022 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/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2023-09-01 00:23:48,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:48,112 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:23:48,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48 WrapperNode [2023-09-01 00:23:48,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:48,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:48,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:23:48,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:23:48,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,175 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-09-01 00:23:48,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:48,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:23:48,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:23:48,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:23:48,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:23:48,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:23:48,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:23:48,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:23:48,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:48,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:23:48,311 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) [2023-09-01 00:23:48,337 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 [2023-09-01 00:23:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:23:48,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:23:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:23:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:23:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:23:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:23:48,352 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:23:48,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:23:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:23:48,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:23:48,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:23:48,354 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:23:48,455 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:23:48,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:23:48,616 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:23:48,621 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:23:48,622 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:23:48,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:48 BoogieIcfgContainer [2023-09-01 00:23:48,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:23:48,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:23:48,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:23:48,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:23:48,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:23:47" (1/3) ... [2023-09-01 00:23:48,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd15e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:48, skipping insertion in model container [2023-09-01 00:23:48,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (2/3) ... [2023-09-01 00:23:48,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd15e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:48, skipping insertion in model container [2023-09-01 00:23:48,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:48" (3/3) ... [2023-09-01 00:23:48,643 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2023-09-01 00:23:48,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:23:48,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 00:23:48,675 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:23:48,748 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:23:48,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 154 flow [2023-09-01 00:23:48,859 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-09-01 00:23:48,859 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:48,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 1/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-09-01 00:23:48,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 154 flow [2023-09-01 00:23:48,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:48,876 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:23:48,894 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:48,900 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:48,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:48,946 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2023-09-01 00:23:48,947 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:48,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 1/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-09-01 00:23:48,948 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-09-01 00:23:51,815 INFO L134 LiptonReduction]: Checked pairs total: 1696 [2023-09-01 00:23:51,816 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-09-01 00:23:51,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:23:51,832 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@309abd9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:23:51,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 00:23:51,833 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:23:51,833 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:51,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:51,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:23:51,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:23:51,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-09-01 00:23:51,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:51,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581458802] [2023-09-01 00:23:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:51,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:51,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:51,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581458802] [2023-09-01 00:23:51,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581458802] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:51,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:51,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:23:51,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316898116] [2023-09-01 00:23:51,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:51,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:23:51,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:51,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:23:51,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:23:51,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2023-09-01 00:23:51,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 46 flow. Second operand has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-09-01 00:23:51,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:51,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2023-09-01 00:23:51,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:52,027 INFO L130 PetriNetUnfolder]: 24/78 cut-off events. [2023-09-01 00:23:52,027 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:52,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 78 events. 24/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 236 event pairs, 24 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 132. Up to 63 conditions per place. [2023-09-01 00:23:52,030 INFO L137 encePairwiseOnDemand]: 130/132 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-09-01 00:23:52,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 70 flow [2023-09-01 00:23:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:23:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:23:52,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 154 transitions. [2023-09-01 00:23:52,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-09-01 00:23:52,045 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 154 transitions. [2023-09-01 00:23:52,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 154 transitions. [2023-09-01 00:23:52,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:52,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 154 transitions. [2023-09-01 00:23:52,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2023-09-01 00:23:52,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-09-01 00:23:52,061 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-09-01 00:23:52,063 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 2 states and 154 transitions. [2023-09-01 00:23:52,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 70 flow [2023-09-01 00:23:52,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:23:52,067 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2023-09-01 00:23:52,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2023-09-01 00:23:52,072 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-09-01 00:23:52,072 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2023-09-01 00:23:52,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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) [2023-09-01 00:23:52,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:52,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:23:52,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:23:52,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:23:52,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:52,074 INFO L85 PathProgramCache]: Analyzing trace with hash 7792683, now seen corresponding path program 1 times [2023-09-01 00:23:52,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:52,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542359719] [2023-09-01 00:23:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:52,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:52,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:52,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:52,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542359719] [2023-09-01 00:23:52,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542359719] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:52,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:52,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:23:52,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271629488] [2023-09-01 00:23:52,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:52,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:23:52,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:52,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:23:52,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:23:52,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2023-09-01 00:23:52,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-09-01 00:23:52,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:52,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2023-09-01 00:23:52,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:52,357 INFO L130 PetriNetUnfolder]: 31/93 cut-off events. [2023-09-01 00:23:52,358 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:52,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 93 events. 31/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 273 event pairs, 21 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 174. Up to 55 conditions per place. [2023-09-01 00:23:52,359 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 18 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2023-09-01 00:23:52,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 90 flow [2023-09-01 00:23:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:23:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:23:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2023-09-01 00:23:52,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-09-01 00:23:52,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2023-09-01 00:23:52,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2023-09-01 00:23:52,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:52,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2023-09-01 00:23:52,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:23:52,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 00:23:52,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 00:23:52,365 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 38 flow. Second operand 3 states and 220 transitions. [2023-09-01 00:23:52,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 90 flow [2023-09-01 00:23:52,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:23:52,366 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 49 flow [2023-09-01 00:23:52,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-09-01 00:23:52,367 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2023-09-01 00:23:52,367 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 49 flow [2023-09-01 00:23:52,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2023-09-01 00:23:52,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:52,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:23:52,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:23:52,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:23:52,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash 241572433, now seen corresponding path program 1 times [2023-09-01 00:23:52,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:52,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890767469] [2023-09-01 00:23:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:52,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:52,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890767469] [2023-09-01 00:23:52,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890767469] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:52,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:52,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:23:52,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537996874] [2023-09-01 00:23:52,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:52,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:23:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:52,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:23:52,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:23:52,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2023-09-01 00:23:52,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-09-01 00:23:52,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:52,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2023-09-01 00:23:52,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:52,522 INFO L130 PetriNetUnfolder]: 17/62 cut-off events. [2023-09-01 00:23:52,523 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 00:23:52,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 62 events. 17/62 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 168 event pairs, 17 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 124. Up to 47 conditions per place. [2023-09-01 00:23:52,525 INFO L137 encePairwiseOnDemand]: 129/132 looper letters, 11 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-09-01 00:23:52,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 73 flow [2023-09-01 00:23:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:23:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:23:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2023-09-01 00:23:52,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2023-09-01 00:23:52,532 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 206 transitions. [2023-09-01 00:23:52,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 206 transitions. [2023-09-01 00:23:52,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:52,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 206 transitions. [2023-09-01 00:23:52,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2023-09-01 00:23:52,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 00:23:52,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 00:23:52,554 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 49 flow. Second operand 3 states and 206 transitions. [2023-09-01 00:23:52,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 73 flow [2023-09-01 00:23:52,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 67 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:23:52,555 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 45 flow [2023-09-01 00:23:52,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-09-01 00:23:52,556 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-09-01 00:23:52,556 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 45 flow [2023-09-01 00:23:52,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2023-09-01 00:23:52,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:52,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:23:52,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:23:52,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:23:52,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:52,558 INFO L85 PathProgramCache]: Analyzing trace with hash 241572432, now seen corresponding path program 1 times [2023-09-01 00:23:52,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:52,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142299280] [2023-09-01 00:23:52,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:52,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:52,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:52,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142299280] [2023-09-01 00:23:52,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142299280] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:52,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:52,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:23:52,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525029716] [2023-09-01 00:23:52,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:52,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:23:52,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:52,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:23:52,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:23:52,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 132 [2023-09-01 00:23:52,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2023-09-01 00:23:52,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:52,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 132 [2023-09-01 00:23:52,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:52,697 INFO L130 PetriNetUnfolder]: 13/53 cut-off events. [2023-09-01 00:23:52,697 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 00:23:52,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 53 events. 13/53 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 13 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 100. Up to 38 conditions per place. [2023-09-01 00:23:52,698 INFO L137 encePairwiseOnDemand]: 129/132 looper letters, 10 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2023-09-01 00:23:52,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 67 flow [2023-09-01 00:23:52,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:23:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:23:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2023-09-01 00:23:52,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2023-09-01 00:23:52,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 196 transitions. [2023-09-01 00:23:52,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 196 transitions. [2023-09-01 00:23:52,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:52,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 196 transitions. [2023-09-01 00:23:52,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2023-09-01 00:23:52,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 00:23:52,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 00:23:52,711 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 45 flow. Second operand 3 states and 196 transitions. [2023-09-01 00:23:52,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 67 flow [2023-09-01 00:23:52,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 63 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:23:52,712 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 43 flow [2023-09-01 00:23:52,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-09-01 00:23:52,714 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-09-01 00:23:52,714 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 43 flow [2023-09-01 00:23:52,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2023-09-01 00:23:52,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:52,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:23:52,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:23:52,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:23:52,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:52,715 INFO L85 PathProgramCache]: Analyzing trace with hash 222766741, now seen corresponding path program 1 times [2023-09-01 00:23:52,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770724530] [2023-09-01 00:23:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:52,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770724530] [2023-09-01 00:23:52,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770724530] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:52,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:52,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:23:52,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814962152] [2023-09-01 00:23:52,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:52,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:23:52,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:52,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:23:52,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:23:52,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2023-09-01 00:23:52,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 43 flow. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2023-09-01 00:23:52,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:52,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2023-09-01 00:23:52,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:52,879 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-09-01 00:23:52,879 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:52,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 40 events. 8/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 4 based on Foata normal form. 7/47 useless extension candidates. Maximal degree in co-relation 82. Up to 19 conditions per place. [2023-09-01 00:23:52,880 INFO L137 encePairwiseOnDemand]: 125/132 looper letters, 9 selfloop transitions, 7 changer transitions 0/18 dead transitions. [2023-09-01 00:23:52,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 79 flow [2023-09-01 00:23:52,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:23:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:23:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2023-09-01 00:23:52,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49053030303030304 [2023-09-01 00:23:52,882 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 259 transitions. [2023-09-01 00:23:52,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 259 transitions. [2023-09-01 00:23:52,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:52,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 259 transitions. [2023-09-01 00:23:52,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.75) internal successors, (259), 4 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) [2023-09-01 00:23:52,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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) [2023-09-01 00:23:52,884 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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) [2023-09-01 00:23:52,884 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 43 flow. Second operand 4 states and 259 transitions. [2023-09-01 00:23:52,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 79 flow [2023-09-01 00:23:52,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 75 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:23:52,886 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 53 flow [2023-09-01 00:23:52,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=53, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-09-01 00:23:52,886 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-09-01 00:23:52,887 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 53 flow [2023-09-01 00:23:52,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2023-09-01 00:23:52,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:52,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:23:52,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:23:52,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:23:52,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:52,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1795959262, now seen corresponding path program 1 times [2023-09-01 00:23:52,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:52,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475071160] [2023-09-01 00:23:52,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:52,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:52,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:23:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:52,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:23:52,940 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:23:52,941 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-09-01 00:23:52,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-09-01 00:23:52,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-09-01 00:23:52,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-09-01 00:23:52,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-09-01 00:23:52,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-09-01 00:23:52,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-09-01 00:23:52,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 00:23:52,944 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 00:23:52,948 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:23:52,948 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:23:52,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:23:52 BasicIcfg [2023-09-01 00:23:52,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:23:52,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:23:52,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:23:52,966 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:23:52,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:48" (3/4) ... [2023-09-01 00:23:52,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:23:52,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:23:52,971 INFO L158 Benchmark]: Toolchain (without parser) took 5314.77ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 54.2MB in the beginning and 68.0MB in the end (delta: -13.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-09-01 00:23:52,971 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 36.1MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:52,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.27ms. Allocated memory is still 77.6MB. Free memory was 54.0MB in the beginning and 35.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 00:23:52,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.98ms. Allocated memory is still 77.6MB. Free memory was 35.1MB in the beginning and 33.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:23:52,977 INFO L158 Benchmark]: Boogie Preprocessor took 76.29ms. Allocated memory is still 77.6MB. Free memory was 33.2MB in the beginning and 57.5MB in the end (delta: -24.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-09-01 00:23:52,978 INFO L158 Benchmark]: RCFGBuilder took 369.93ms. Allocated memory is still 77.6MB. Free memory was 57.5MB in the beginning and 44.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 00:23:52,978 INFO L158 Benchmark]: TraceAbstraction took 4340.75ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 68.0MB in the end (delta: -24.4MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-09-01 00:23:52,978 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 94.4MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:52,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 36.1MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.27ms. Allocated memory is still 77.6MB. Free memory was 54.0MB in the beginning and 35.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.98ms. Allocated memory is still 77.6MB. Free memory was 35.1MB in the beginning and 33.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.29ms. Allocated memory is still 77.6MB. Free memory was 33.2MB in the beginning and 57.5MB in the end (delta: -24.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 369.93ms. Allocated memory is still 77.6MB. Free memory was 57.5MB in the beginning and 44.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4340.75ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 68.0MB in the end (delta: -24.4MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 94.4MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 71 PlacesBefore, 24 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 1696 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 778, independent: 608, independent conditional: 0, independent unconditional: 608, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 259, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 778, independent: 381, independent conditional: 0, independent unconditional: 381, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 259, unknown conditional: 0, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 202 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 22 mSDtfsCounter, 202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-09-01 00:23:52,997 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:23:54,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:23:54,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:23:54,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:23:54,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:23:54,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:23:54,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:23:54,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:23:54,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:23:54,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:23:54,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:23:54,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:23:54,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:23:54,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:23:54,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:23:54,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:23:54,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:23:54,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:23:54,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:23:54,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:23:54,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:23:54,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:23:54,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:23:54,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:23:55,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:23:55,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:23:55,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:23:55,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:23:55,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:23:55,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:23:55,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:23:55,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:23:55,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:23:55,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:23:55,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:23:55,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:23:55,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:23:55,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:23:55,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:23:55,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:23:55,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:23:55,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-09-01 00:23:55,053 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:23:55,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:23:55,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:23:55,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:23:55,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:23:55,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:23:55,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:23:55,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:23:55,057 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:23:55,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:23:55,058 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:23:55,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:23:55,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:23:55,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:23:55,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:23:55,059 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:23:55,059 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:23:55,059 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:23:55,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:23:55,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:23:55,060 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-09-01 00:23:55,060 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-09-01 00:23:55,060 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:23:55,060 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:23:55,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:23:55,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:23:55,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:23:55,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:55,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:23:55,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:23:55,062 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-09-01 00:23:55,062 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-09-01 00:23:55,063 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:23:55,063 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:23:55,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:23:55,063 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-09-01 00:23:55,063 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:23:55,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:23:55,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:23:55,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:23:55,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:23:55,403 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:23:55,403 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:23:55,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2023-09-01 00:23:56,665 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:23:56,937 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:23:56,938 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2023-09-01 00:23:56,955 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51d81b27/120032b23f1f40d88469994a2356b4d1/FLAGaf581b8a0 [2023-09-01 00:23:56,982 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51d81b27/120032b23f1f40d88469994a2356b4d1 [2023-09-01 00:23:56,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:23:56,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:23:56,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:56,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:23:56,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:23:56,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:56" (1/1) ... [2023-09-01 00:23:56,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60d9c132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:56, skipping insertion in model container [2023-09-01 00:23:56,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:56" (1/1) ... [2023-09-01 00:23:56,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:23:57,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:23:57,198 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/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2023-09-01 00:23:57,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:57,372 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:23:57,388 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/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2023-09-01 00:23:57,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:57,496 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:23:57,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57 WrapperNode [2023-09-01 00:23:57,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:57,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:57,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:23:57,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:23:57,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,559 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-09-01 00:23:57,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:57,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:23:57,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:23:57,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:23:57,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:23:57,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:23:57,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:23:57,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:23:57,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (1/1) ... [2023-09-01 00:23:57,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:57,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:23:57,644 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) [2023-09-01 00:23:57,648 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 [2023-09-01 00:23:57,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-09-01 00:23:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:23:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:23:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:23:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:23:57,682 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:23:57,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:23:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-09-01 00:23:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-09-01 00:23:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-09-01 00:23:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:23:57,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:23:57,686 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:23:57,794 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:23:57,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:23:57,986 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:23:57,992 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:23:57,992 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:23:57,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:57 BoogieIcfgContainer [2023-09-01 00:23:57,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:23:57,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:23:58,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:23:58,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:23:58,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:23:56" (1/3) ... [2023-09-01 00:23:58,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5f7ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:58, skipping insertion in model container [2023-09-01 00:23:58,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:57" (2/3) ... [2023-09-01 00:23:58,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5f7ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:58, skipping insertion in model container [2023-09-01 00:23:58,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:57" (3/3) ... [2023-09-01 00:23:58,015 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2023-09-01 00:23:58,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:23:58,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 00:23:58,032 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:23:58,123 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:23:58,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 156 flow [2023-09-01 00:23:58,218 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2023-09-01 00:23:58,219 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:58,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 1/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-09-01 00:23:58,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 156 flow [2023-09-01 00:23:58,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:58,229 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:23:58,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:58,242 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:58,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:58,275 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-09-01 00:23:58,275 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:58,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 1/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-09-01 00:23:58,277 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-09-01 00:24:03,585 INFO L134 LiptonReduction]: Checked pairs total: 1818 [2023-09-01 00:24:03,585 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-09-01 00:24:03,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:24:03,601 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@37c60f9f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:24:03,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 00:24:03,603 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:24:03,603 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:03,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:03,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:24:03,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:24:03,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-09-01 00:24:03,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:03,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823060568] [2023-09-01 00:24:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:03,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 00:24:03,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-09-01 00:24:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:03,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-09-01 00:24:03,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:03,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:03,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:03,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823060568] [2023-09-01 00:24:03,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823060568] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:03,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:03,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:24:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43043543] [2023-09-01 00:24:03,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:03,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:24:03,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:24:03,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:24:03,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 133 [2023-09-01 00:24:03,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 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) [2023-09-01 00:24:03,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:03,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 133 [2023-09-01 00:24:03,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:03,794 INFO L130 PetriNetUnfolder]: 16/75 cut-off events. [2023-09-01 00:24:03,794 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 00:24:03,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 75 events. 16/75 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 230 event pairs, 16 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 111. Up to 45 conditions per place. [2023-09-01 00:24:03,796 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 12 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-09-01 00:24:03,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 68 flow [2023-09-01 00:24:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:24:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:24:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2023-09-01 00:24:03,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827067669172933 [2023-09-01 00:24:03,809 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 155 transitions. [2023-09-01 00:24:03,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 155 transitions. [2023-09-01 00:24:03,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:03,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 155 transitions. [2023-09-01 00:24:03,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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) [2023-09-01 00:24:03,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2023-09-01 00:24:03,825 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2023-09-01 00:24:03,827 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 155 transitions. [2023-09-01 00:24:03,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 68 flow [2023-09-01 00:24:03,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 64 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:03,831 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow [2023-09-01 00:24:03,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, 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=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-09-01 00:24:03,835 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-09-01 00:24:03,835 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow [2023-09-01 00:24:03,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 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) [2023-09-01 00:24:03,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:03,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:24:03,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-09-01 00:24:04,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:04,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:24:04,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash 7854099, now seen corresponding path program 1 times [2023-09-01 00:24:04,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:04,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015348619] [2023-09-01 00:24:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:04,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:04,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:04,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 00:24:04,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-09-01 00:24:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:04,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 00:24:04,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:04,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:04,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015348619] [2023-09-01 00:24:04,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015348619] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:04,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:04,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:04,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265428657] [2023-09-01 00:24:04,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:04,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:04,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:04,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 133 [2023-09-01 00:24:04,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2023-09-01 00:24:04,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:04,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 133 [2023-09-01 00:24:04,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:04,220 INFO L130 PetriNetUnfolder]: 19/72 cut-off events. [2023-09-01 00:24:04,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:04,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 72 events. 19/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 208 event pairs, 13 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 127. Up to 37 conditions per place. [2023-09-01 00:24:04,221 INFO L137 encePairwiseOnDemand]: 129/133 looper letters, 14 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-09-01 00:24:04,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 80 flow [2023-09-01 00:24:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-09-01 00:24:04,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5488721804511278 [2023-09-01 00:24:04,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-09-01 00:24:04,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-09-01 00:24:04,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:04,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-09-01 00:24:04,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2023-09-01 00:24:04,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-09-01 00:24:04,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-09-01 00:24:04,229 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 40 flow. Second operand 3 states and 219 transitions. [2023-09-01 00:24:04,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 80 flow [2023-09-01 00:24:04,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:24:04,230 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2023-09-01 00:24:04,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-09-01 00:24:04,231 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-09-01 00:24:04,232 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2023-09-01 00:24:04,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2023-09-01 00:24:04,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:04,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:04,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-09-01 00:24:04,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:04,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:24:04,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:04,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1042171423, now seen corresponding path program 1 times [2023-09-01 00:24:04,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:04,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689665632] [2023-09-01 00:24:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:04,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:04,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:04,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 00:24:04,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-09-01 00:24:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:04,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 00:24:04,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:04,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-09-01 00:24:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:04,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:04,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:04,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689665632] [2023-09-01 00:24:04,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689665632] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:04,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:04,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:04,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164201172] [2023-09-01 00:24:04,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:04,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:04,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:04,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:04,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 133 [2023-09-01 00:24:04,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2023-09-01 00:24:04,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:04,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 133 [2023-09-01 00:24:04,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:04,665 INFO L130 PetriNetUnfolder]: 17/67 cut-off events. [2023-09-01 00:24:04,665 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 00:24:04,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 67 events. 17/67 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 193 event pairs, 17 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 129. Up to 47 conditions per place. [2023-09-01 00:24:04,666 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 11 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-09-01 00:24:04,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 75 flow [2023-09-01 00:24:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:04,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-09-01 00:24:04,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5012531328320802 [2023-09-01 00:24:04,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-09-01 00:24:04,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-09-01 00:24:04,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:04,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-09-01 00:24:04,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2023-09-01 00:24:04,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-09-01 00:24:04,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-09-01 00:24:04,672 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 3 states and 200 transitions. [2023-09-01 00:24:04,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 75 flow [2023-09-01 00:24:04,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:04,673 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-09-01 00:24:04,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-09-01 00:24:04,674 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-09-01 00:24:04,674 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-09-01 00:24:04,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2023-09-01 00:24:04,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:04,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:04,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-09-01 00:24:04,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:04,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:24:04,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:04,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1042171422, now seen corresponding path program 1 times [2023-09-01 00:24:04,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:04,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995873413] [2023-09-01 00:24:04,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:04,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:04,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:04,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 00:24:04,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-09-01 00:24:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:04,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 00:24:04,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:05,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:05,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:05,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995873413] [2023-09-01 00:24:05,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995873413] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:05,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:05,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:05,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694840708] [2023-09-01 00:24:05,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:05,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:05,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:05,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:05,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:05,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 133 [2023-09-01 00:24:05,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-09-01 00:24:05,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:05,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 133 [2023-09-01 00:24:05,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:05,134 INFO L130 PetriNetUnfolder]: 17/62 cut-off events. [2023-09-01 00:24:05,134 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 00:24:05,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 62 events. 17/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 166 event pairs, 17 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 118. Up to 47 conditions per place. [2023-09-01 00:24:05,135 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 11 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-09-01 00:24:05,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 71 flow [2023-09-01 00:24:05,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:05,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-09-01 00:24:05,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5087719298245614 [2023-09-01 00:24:05,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-09-01 00:24:05,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-09-01 00:24:05,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:05,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-09-01 00:24:05,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2023-09-01 00:24:05,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-09-01 00:24:05,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-09-01 00:24:05,140 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 203 transitions. [2023-09-01 00:24:05,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 71 flow [2023-09-01 00:24:05,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 67 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:05,141 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 45 flow [2023-09-01 00:24:05,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-09-01 00:24:05,149 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-09-01 00:24:05,149 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 45 flow [2023-09-01 00:24:05,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-09-01 00:24:05,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:05,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:05,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-09-01 00:24:05,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:05,359 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:24:05,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:05,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2052327257, now seen corresponding path program 1 times [2023-09-01 00:24:05,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:05,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586534461] [2023-09-01 00:24:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:05,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:05,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:05,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 00:24:05,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-09-01 00:24:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:05,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2023-09-01 00:24:05,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:05,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-09-01 00:24:05,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-09-01 00:24:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:05,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:05,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586534461] [2023-09-01 00:24:05,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586534461] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:05,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:05,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:24:05,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417325170] [2023-09-01 00:24:05,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:05,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:24:05,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:24:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:24:05,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 133 [2023-09-01 00:24:05,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2023-09-01 00:24:05,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:05,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 133 [2023-09-01 00:24:05,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:05,728 INFO L130 PetriNetUnfolder]: 8/41 cut-off events. [2023-09-01 00:24:05,728 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:05,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 41 events. 8/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 4 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 83. Up to 19 conditions per place. [2023-09-01 00:24:05,729 INFO L137 encePairwiseOnDemand]: 126/133 looper letters, 9 selfloop transitions, 7 changer transitions 0/19 dead transitions. [2023-09-01 00:24:05,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 81 flow [2023-09-01 00:24:05,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2023-09-01 00:24:05,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4943609022556391 [2023-09-01 00:24:05,730 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 263 transitions. [2023-09-01 00:24:05,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 263 transitions. [2023-09-01 00:24:05,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:05,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 263 transitions. [2023-09-01 00:24:05,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2023-09-01 00:24:05,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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) [2023-09-01 00:24:05,733 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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) [2023-09-01 00:24:05,734 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 45 flow. Second operand 4 states and 263 transitions. [2023-09-01 00:24:05,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 81 flow [2023-09-01 00:24:05,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 77 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:05,734 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 55 flow [2023-09-01 00:24:05,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-09-01 00:24:05,735 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-09-01 00:24:05,735 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 55 flow [2023-09-01 00:24:05,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2023-09-01 00:24:05,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:05,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:05,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-09-01 00:24:05,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:05,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-09-01 00:24:05,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:05,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1470486454, now seen corresponding path program 1 times [2023-09-01 00:24:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:05,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052499519] [2023-09-01 00:24:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:05,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:05,947 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-09-01 00:24:05,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-09-01 00:24:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:24:06,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:24:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:24:06,075 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-09-01 00:24:06,076 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:24:06,077 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-09-01 00:24:06,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-09-01 00:24:06,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-09-01 00:24:06,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-09-01 00:24:06,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-09-01 00:24:06,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-09-01 00:24:06,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-09-01 00:24:06,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-09-01 00:24:06,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-09-01 00:24:06,280 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:06,284 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:24:06,284 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:24:06,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:24:06 BasicIcfg [2023-09-01 00:24:06,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:24:06,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:24:06,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:24:06,306 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:24:06,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:57" (3/4) ... [2023-09-01 00:24:06,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:24:06,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:24:06,310 INFO L158 Benchmark]: Toolchain (without parser) took 9324.81ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 42.3MB in the beginning and 50.2MB in the end (delta: -8.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-09-01 00:24:06,311 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:06,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.12ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 42.0MB in the beginning and 71.4MB in the end (delta: -29.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-09-01 00:24:06,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.88ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 69.4MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 00:24:06,312 INFO L158 Benchmark]: Boogie Preprocessor took 52.44ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 67.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:06,312 INFO L158 Benchmark]: RCFGBuilder took 379.77ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 52.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 00:24:06,312 INFO L158 Benchmark]: TraceAbstraction took 8309.62ms. Allocated memory is still 96.5MB. Free memory was 52.2MB in the beginning and 50.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:06,312 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:06,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.12ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 42.0MB in the beginning and 71.4MB in the end (delta: -29.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.88ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 69.4MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.44ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 67.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.77ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 52.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8309.62ms. Allocated memory is still 96.5MB. Free memory was 52.2MB in the beginning and 50.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 72 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 1818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1025, independent: 868, independent conditional: 0, independent unconditional: 868, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 250, independent: 229, independent conditional: 0, independent unconditional: 229, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1025, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 250, unknown conditional: 0, unknown unconditional: 250] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 18 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 1 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 18 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-09-01 00:24:06,337 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: UNKNOWN: Overapproximated counterexample