./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.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_1_pos.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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --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 00:23:43,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:23:43,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:23:43,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:23:43,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:23:43,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:23:43,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:23:43,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:23:43,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:23:43,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:23:43,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:23:43,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:23:43,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:23:43,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:23:43,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:23:43,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:23:43,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:23:43,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:23:43,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:23:43,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:23:43,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:23:43,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:23:43,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:23:43,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:23:43,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:23:43,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:23:43,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:23:43,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:23:43,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:23:43,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:23:43,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:23:43,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:23:43,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:23:43,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:23:43,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:23:43,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:23:43,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:23:43,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:23:43,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:23:43,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:23:43,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:23:43,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:23:43,694 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:23:43,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:23:43,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:23:43,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:23:43,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:23:43,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:23:43,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:23:43,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:23:43,697 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:23:43,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:23:43,698 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:23:43,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:23:43,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:23:43,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:23:43,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:23:43,699 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:23:43,699 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:23:43,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:23:43,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:23:43,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:23:43,700 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:23:43,700 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:23:43,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:23:43,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:23:43,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:23:43,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:43,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:23:43,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:23:43,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:23:43,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:23:43,702 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:23:43,702 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:23:43,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:23:43,703 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:23:43,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:23:44,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:23:44,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:23:44,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:23:44,039 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:23:44,040 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:23:44,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-09-01 00:23:45,229 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:23:45,415 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:23:45,416 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-09-01 00:23:45,426 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d744fca/a1115bca47c2450db90fcf2bd03f035d/FLAG9c0de7cbe [2023-09-01 00:23:45,440 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d744fca/a1115bca47c2450db90fcf2bd03f035d [2023-09-01 00:23:45,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:23:45,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:23:45,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:45,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:23:45,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:23:45,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0ea47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45, skipping insertion in model container [2023-09-01 00:23:45,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:23:45,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:23:45,607 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_1_pos.i[1103,1116] [2023-09-01 00:23:45,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:45,763 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:23:45,775 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_1_pos.i[1103,1116] [2023-09-01 00:23:45,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:45,862 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:23:45,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45 WrapperNode [2023-09-01 00:23:45,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:45,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:45,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:23:45,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:23:45,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,924 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-09-01 00:23:45,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:45,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:23:45,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:23:45,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:23:45,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:23:45,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:23:45,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:23:45,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:23:45,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (1/1) ... [2023-09-01 00:23:45,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:45,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:23:46,001 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 00:23:46,027 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 00:23:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:23:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:23:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:23:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:23:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:23:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:23:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:23:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:23:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:23:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:23:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:23:46,046 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 00:23:46,160 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:23:46,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:23:46,309 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:23:46,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:23:46,314 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:23:46,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:46 BoogieIcfgContainer [2023-09-01 00:23:46,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:23:46,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:23:46,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:23:46,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:23:46,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:23:45" (1/3) ... [2023-09-01 00:23:46,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf28e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:46, skipping insertion in model container [2023-09-01 00:23:46,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:45" (2/3) ... [2023-09-01 00:23:46,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf28e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:46, skipping insertion in model container [2023-09-01 00:23:46,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:46" (3/3) ... [2023-09-01 00:23:46,323 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-09-01 00:23:46,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:23:46,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 00:23:46,337 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:23:46,392 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:23:46,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 154 flow [2023-09-01 00:23:46,531 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-09-01 00:23:46,532 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:46,535 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 00:23:46,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 154 flow [2023-09-01 00:23:46,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:46,541 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:23:46,548 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:46,551 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:46,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:46,568 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2023-09-01 00:23:46,568 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:46,569 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 00:23:46,570 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-09-01 00:23:49,362 INFO L134 LiptonReduction]: Checked pairs total: 1696 [2023-09-01 00:23:49,362 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-09-01 00:23:49,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:23:49,378 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;@aeafae3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:23:49,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 00:23:49,380 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:23:49,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:49,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:49,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:23:49,381 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 00:23:49,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:49,385 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-09-01 00:23:49,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:49,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610832540] [2023-09-01 00:23:49,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:49,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:49,474 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 00:23:49,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:49,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610832540] [2023-09-01 00:23:49,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610832540] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:49,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:49,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:23:49,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776316026] [2023-09-01 00:23:49,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:49,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:23:49,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:49,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:23:49,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:23:49,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2023-09-01 00:23:49,544 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 00:23:49,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:49,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2023-09-01 00:23:49,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:49,581 INFO L130 PetriNetUnfolder]: 24/78 cut-off events. [2023-09-01 00:23:49,582 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:49,582 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 00:23:49,584 INFO L137 encePairwiseOnDemand]: 130/132 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-09-01 00:23:49,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 70 flow [2023-09-01 00:23:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:23:49,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:23:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 154 transitions. [2023-09-01 00:23:49,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-09-01 00:23:49,601 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 154 transitions. [2023-09-01 00:23:49,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 154 transitions. [2023-09-01 00:23:49,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:49,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 154 transitions. [2023-09-01 00:23:49,612 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 00:23:49,616 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 00:23:49,617 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 00:23:49,618 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 2 states and 154 transitions. [2023-09-01 00:23:49,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 70 flow [2023-09-01 00:23:49,621 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 00:23:49,622 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2023-09-01 00:23:49,624 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 00:23:49,629 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-09-01 00:23:49,629 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2023-09-01 00:23:49,629 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 00:23:49,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:49,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:23:49,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:23:49,631 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 00:23:49,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:49,632 INFO L85 PathProgramCache]: Analyzing trace with hash 7792683, now seen corresponding path program 1 times [2023-09-01 00:23:49,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:49,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464818668] [2023-09-01 00:23:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:49,806 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 00:23:49,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:49,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464818668] [2023-09-01 00:23:49,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464818668] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:49,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:49,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:23:49,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480234185] [2023-09-01 00:23:49,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:49,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:23:49,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:49,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:23:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:23:49,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2023-09-01 00:23:49,825 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 00:23:49,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:49,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2023-09-01 00:23:49,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:49,865 INFO L130 PetriNetUnfolder]: 31/93 cut-off events. [2023-09-01 00:23:49,865 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:49,866 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 00:23:49,867 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 18 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2023-09-01 00:23:49,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 90 flow [2023-09-01 00:23:49,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:23:49,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:23:49,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2023-09-01 00:23:49,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-09-01 00:23:49,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 220 transitions. [2023-09-01 00:23:49,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 220 transitions. [2023-09-01 00:23:49,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:49,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 220 transitions. [2023-09-01 00:23:49,871 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 00:23:49,872 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 00:23:49,872 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 00:23:49,872 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 38 flow. Second operand 3 states and 220 transitions. [2023-09-01 00:23:49,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 90 flow [2023-09-01 00:23:49,873 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 00:23:49,874 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 49 flow [2023-09-01 00:23:49,874 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 00:23:49,875 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2023-09-01 00:23:49,875 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 49 flow [2023-09-01 00:23:49,875 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 00:23:49,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:49,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:23:49,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:23:49,876 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 00:23:49,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:49,876 INFO L85 PathProgramCache]: Analyzing trace with hash 241572433, now seen corresponding path program 1 times [2023-09-01 00:23:49,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:49,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123747440] [2023-09-01 00:23:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:49,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:50,046 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 00:23:50,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:50,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123747440] [2023-09-01 00:23:50,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123747440] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:50,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:50,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:23:50,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265661385] [2023-09-01 00:23:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:50,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:23:50,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:23:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:23:50,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2023-09-01 00:23:50,076 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 00:23:50,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:50,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2023-09-01 00:23:50,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:50,100 INFO L130 PetriNetUnfolder]: 17/62 cut-off events. [2023-09-01 00:23:50,100 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 00:23:50,101 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 00:23:50,101 INFO L137 encePairwiseOnDemand]: 129/132 looper letters, 11 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-09-01 00:23:50,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 73 flow [2023-09-01 00:23:50,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:23:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:23:50,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2023-09-01 00:23:50,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2023-09-01 00:23:50,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 206 transitions. [2023-09-01 00:23:50,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 206 transitions. [2023-09-01 00:23:50,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:50,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 206 transitions. [2023-09-01 00:23:50,105 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 00:23:50,106 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 00:23:50,107 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 00:23:50,107 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 49 flow. Second operand 3 states and 206 transitions. [2023-09-01 00:23:50,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 73 flow [2023-09-01 00:23:50,107 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 00:23:50,108 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 45 flow [2023-09-01 00:23:50,108 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 00:23:50,109 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-09-01 00:23:50,109 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 45 flow [2023-09-01 00:23:50,109 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 00:23:50,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:50,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:23:50,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:23:50,110 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 00:23:50,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 241572432, now seen corresponding path program 1 times [2023-09-01 00:23:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984050406] [2023-09-01 00:23:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:50,181 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 00:23:50,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984050406] [2023-09-01 00:23:50,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984050406] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:50,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:50,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:23:50,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048359610] [2023-09-01 00:23:50,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:50,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:23:50,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:23:50,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:23:50,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 132 [2023-09-01 00:23:50,217 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 00:23:50,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:50,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 132 [2023-09-01 00:23:50,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:50,240 INFO L130 PetriNetUnfolder]: 13/53 cut-off events. [2023-09-01 00:23:50,240 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 00:23:50,241 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 00:23:50,241 INFO L137 encePairwiseOnDemand]: 129/132 looper letters, 10 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2023-09-01 00:23:50,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 67 flow [2023-09-01 00:23:50,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:23:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:23:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2023-09-01 00:23:50,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2023-09-01 00:23:50,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 196 transitions. [2023-09-01 00:23:50,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 196 transitions. [2023-09-01 00:23:50,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:50,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 196 transitions. [2023-09-01 00:23:50,257 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 00:23:50,258 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 00:23:50,259 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 00:23:50,259 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 45 flow. Second operand 3 states and 196 transitions. [2023-09-01 00:23:50,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 67 flow [2023-09-01 00:23:50,260 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 00:23:50,260 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 43 flow [2023-09-01 00:23:50,260 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 00:23:50,261 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-09-01 00:23:50,261 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 43 flow [2023-09-01 00:23:50,261 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 00:23:50,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:50,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:23:50,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:23:50,262 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 00:23:50,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash 222766741, now seen corresponding path program 1 times [2023-09-01 00:23:50,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:50,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319458052] [2023-09-01 00:23:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:50,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:50,353 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 00:23:50,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:50,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319458052] [2023-09-01 00:23:50,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319458052] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:50,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:50,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:23:50,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218664637] [2023-09-01 00:23:50,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:50,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:23:50,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:50,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:23:50,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:23:50,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2023-09-01 00:23:50,399 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 00:23:50,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:50,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2023-09-01 00:23:50,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:50,434 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-09-01 00:23:50,434 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:50,434 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 00:23:50,435 INFO L137 encePairwiseOnDemand]: 125/132 looper letters, 9 selfloop transitions, 7 changer transitions 0/18 dead transitions. [2023-09-01 00:23:50,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 79 flow [2023-09-01 00:23:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:23:50,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:23:50,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2023-09-01 00:23:50,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49053030303030304 [2023-09-01 00:23:50,437 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 259 transitions. [2023-09-01 00:23:50,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 259 transitions. [2023-09-01 00:23:50,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:50,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 259 transitions. [2023-09-01 00:23:50,438 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 00:23:50,439 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 00:23:50,439 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 00:23:50,440 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 43 flow. Second operand 4 states and 259 transitions. [2023-09-01 00:23:50,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 79 flow [2023-09-01 00:23:50,440 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 00:23:50,441 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 53 flow [2023-09-01 00:23:50,441 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 00:23:50,442 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-09-01 00:23:50,442 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 53 flow [2023-09-01 00:23:50,442 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 00:23:50,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:50,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:23:50,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:23:50,443 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 00:23:50,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:50,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1795959262, now seen corresponding path program 1 times [2023-09-01 00:23:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:50,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054469427] [2023-09-01 00:23:50,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:50,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:50,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:23:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:50,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:23:50,502 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:23:50,502 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-09-01 00:23:50,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-09-01 00:23:50,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-09-01 00:23:50,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-09-01 00:23:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-09-01 00:23:50,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-09-01 00:23:50,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-09-01 00:23:50,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 00:23:50,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 00:23:50,514 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:23:50,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:23:50,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:23:50 BasicIcfg [2023-09-01 00:23:50,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:23:50,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:23:50,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:23:50,534 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:23:50,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:46" (3/4) ... [2023-09-01 00:23:50,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:23:50,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:23:50,537 INFO L158 Benchmark]: Toolchain (without parser) took 5093.54ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 74.8MB in the beginning and 57.8MB in the end (delta: 17.1MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2023-09-01 00:23:50,538 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:50,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.64ms. Allocated memory is still 96.5MB. Free memory was 74.6MB in the beginning and 55.8MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 00:23:50,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.19ms. Allocated memory is still 96.5MB. Free memory was 55.8MB in the beginning and 53.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:23:50,539 INFO L158 Benchmark]: Boogie Preprocessor took 45.00ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 52.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:23:50,539 INFO L158 Benchmark]: RCFGBuilder took 345.47ms. Allocated memory is still 96.5MB. Free memory was 52.3MB in the beginning and 64.8MB in the end (delta: -12.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-09-01 00:23:50,539 INFO L158 Benchmark]: TraceAbstraction took 4215.11ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 64.2MB in the beginning and 57.8MB in the end (delta: 6.5MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-09-01 00:23:50,540 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 117.4MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:50,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.64ms. Allocated memory is still 96.5MB. Free memory was 74.6MB in the beginning and 55.8MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.19ms. Allocated memory is still 96.5MB. Free memory was 55.8MB in the beginning and 53.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.00ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 52.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.47ms. Allocated memory is still 96.5MB. Free memory was 52.3MB in the beginning and 64.8MB in the end (delta: -12.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4215.11ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 64.2MB in the beginning and 57.8MB in the end (delta: 6.5MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 117.4MB. Free memory is still 57.8MB. 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: 2.8s, 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 == 0) [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: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s 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 00:23:50,560 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_1_pos.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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --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 00:23:52,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:23:52,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:23:52,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:23:52,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:23:52,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:23:52,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:23:52,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:23:52,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:23:52,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:23:52,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:23:52,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:23:52,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:23:52,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:23:52,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:23:52,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:23:52,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:23:52,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:23:52,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:23:52,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:23:52,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:23:52,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:23:52,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:23:52,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:23:52,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:23:52,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:23:52,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:23:52,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:23:52,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:23:52,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:23:52,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:23:52,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:23:52,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:23:52,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:23:52,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:23:52,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:23:52,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:23:52,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:23:52,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:23:52,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:23:52,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:23:52,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-09-01 00:23:52,543 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:23:52,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:23:52,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:23:52,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:23:52,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:23:52,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:23:52,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:23:52,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:23:52,546 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:23:52,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:23:52,547 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:23:52,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:23:52,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:23:52,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:23:52,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:23:52,548 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:23:52,548 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:23:52,548 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:23:52,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:23:52,549 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:23:52,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-09-01 00:23:52,549 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-09-01 00:23:52,549 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:23:52,550 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:23:52,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:23:52,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:23:52,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:23:52,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:52,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:23:52,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:23:52,551 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-09-01 00:23:52,551 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-09-01 00:23:52,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:23:52,552 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:23:52,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:23:52,552 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-09-01 00:23:52,552 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:23:52,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:23:52,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:23:52,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:23:52,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:23:52,849 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:23:52,849 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:23:52,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-09-01 00:23:53,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:23:54,172 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:23:54,173 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-09-01 00:23:54,187 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f32e1de3/09b64b38debc406d92bd98e0e2f522c4/FLAG63ade18fa [2023-09-01 00:23:54,206 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f32e1de3/09b64b38debc406d92bd98e0e2f522c4 [2023-09-01 00:23:54,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:23:54,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:23:54,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:54,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:23:54,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:23:54,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21709ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54, skipping insertion in model container [2023-09-01 00:23:54,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:23:54,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:23:54,431 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_1_pos.i[1103,1116] [2023-09-01 00:23:54,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:54,608 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:23:54,622 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_1_pos.i[1103,1116] [2023-09-01 00:23:54,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:54,710 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:23:54,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54 WrapperNode [2023-09-01 00:23:54,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:54,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:54,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:23:54,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:23:54,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,747 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-09-01 00:23:54,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:54,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:23:54,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:23:54,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:23:54,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:23:54,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:23:54,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:23:54,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:23:54,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (1/1) ... [2023-09-01 00:23:54,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:54,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:23:54,825 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 00:23:54,855 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 00:23:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-09-01 00:23:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:23:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:23:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:23:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:23:54,868 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:23:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:23:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-09-01 00:23:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-09-01 00:23:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-09-01 00:23:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:23:54,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:23:54,870 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 00:23:55,039 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:23:55,041 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:23:55,198 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:23:55,204 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:23:55,204 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:23:55,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:55 BoogieIcfgContainer [2023-09-01 00:23:55,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:23:55,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:23:55,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:23:55,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:23:55,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:23:54" (1/3) ... [2023-09-01 00:23:55,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d701f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:55, skipping insertion in model container [2023-09-01 00:23:55,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:54" (2/3) ... [2023-09-01 00:23:55,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d701f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:55, skipping insertion in model container [2023-09-01 00:23:55,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:55" (3/3) ... [2023-09-01 00:23:55,212 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-09-01 00:23:55,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:23:55,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 00:23:55,226 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:23:55,268 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:23:55,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 156 flow [2023-09-01 00:23:55,348 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2023-09-01 00:23:55,348 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:55,352 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 00:23:55,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 156 flow [2023-09-01 00:23:55,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:55,360 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:23:55,375 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:55,377 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:55,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:55,391 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-09-01 00:23:55,392 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:55,392 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 00:23:55,393 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-09-01 00:24:00,596 INFO L134 LiptonReduction]: Checked pairs total: 1818 [2023-09-01 00:24:00,597 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-09-01 00:24:00,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:24:00,614 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;@12140b28, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:24:00,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 00:24:00,615 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:24:00,616 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:00,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:00,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:24:00,617 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 00:24:00,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-09-01 00:24:00,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:00,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355392603] [2023-09-01 00:24:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:00,633 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 00:24:00,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:00,641 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 00:24:00,653 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 00:24:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:00,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-09-01 00:24:00,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:00,721 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 00:24:00,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:00,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:00,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355392603] [2023-09-01 00:24:00,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355392603] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:00,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:00,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:24:00,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159726628] [2023-09-01 00:24:00,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:00,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:24:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:00,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:24:00,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:24:00,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 133 [2023-09-01 00:24:00,759 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 00:24:00,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:00,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 133 [2023-09-01 00:24:00,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:00,836 INFO L130 PetriNetUnfolder]: 16/75 cut-off events. [2023-09-01 00:24:00,836 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 00:24:00,837 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 00:24:00,838 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 12 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-09-01 00:24:00,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 68 flow [2023-09-01 00:24:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:24:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:24:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2023-09-01 00:24:00,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827067669172933 [2023-09-01 00:24:00,864 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 155 transitions. [2023-09-01 00:24:00,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 155 transitions. [2023-09-01 00:24:00,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:00,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 155 transitions. [2023-09-01 00:24:00,869 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 00:24:00,888 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 00:24:00,889 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 00:24:00,890 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 155 transitions. [2023-09-01 00:24:00,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 68 flow [2023-09-01 00:24:00,893 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 00:24:00,894 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow [2023-09-01 00:24:00,896 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 00:24:00,899 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-09-01 00:24:00,899 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow [2023-09-01 00:24:00,899 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 00:24:00,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:00,900 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:24:00,911 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 00:24:01,108 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 00:24:01,108 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 00:24:01,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash 7854099, now seen corresponding path program 1 times [2023-09-01 00:24:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:01,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316341004] [2023-09-01 00:24:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:01,110 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 00:24:01,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:01,117 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 00:24:01,120 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 00:24:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:01,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 00:24:01,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:01,233 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 00:24:01,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:01,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:01,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316341004] [2023-09-01 00:24:01,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316341004] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:01,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:01,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:01,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044435674] [2023-09-01 00:24:01,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:01,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:01,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:01,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:01,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:01,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 133 [2023-09-01 00:24:01,273 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 00:24:01,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:01,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 133 [2023-09-01 00:24:01,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:01,331 INFO L130 PetriNetUnfolder]: 19/72 cut-off events. [2023-09-01 00:24:01,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:01,332 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 00:24:01,333 INFO L137 encePairwiseOnDemand]: 129/133 looper letters, 14 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-09-01 00:24:01,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 80 flow [2023-09-01 00:24:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:01,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-09-01 00:24:01,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5488721804511278 [2023-09-01 00:24:01,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-09-01 00:24:01,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-09-01 00:24:01,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:01,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-09-01 00:24:01,338 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 00:24:01,340 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 00:24:01,341 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 00:24:01,341 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 40 flow. Second operand 3 states and 219 transitions. [2023-09-01 00:24:01,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 80 flow [2023-09-01 00:24:01,342 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 00:24:01,342 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2023-09-01 00:24:01,343 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 00:24:01,343 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-09-01 00:24:01,344 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2023-09-01 00:24:01,344 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 00:24:01,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:01,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:01,355 INFO L552 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)] Ended with exit code 0 [2023-09-01 00:24:01,553 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 00:24:01,554 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 00:24:01,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:01,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1042171423, now seen corresponding path program 1 times [2023-09-01 00:24:01,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:01,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067793167] [2023-09-01 00:24:01,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:01,555 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 00:24:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:01,557 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 00:24:01,559 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 00:24:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:01,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 00:24:01,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:01,669 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 00:24:01,684 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 00:24:01,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:01,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:01,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067793167] [2023-09-01 00:24:01,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067793167] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:01,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:01,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:01,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142504393] [2023-09-01 00:24:01,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:01,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:01,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:01,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:01,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:01,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 133 [2023-09-01 00:24:01,728 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 00:24:01,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:01,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 133 [2023-09-01 00:24:01,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:01,764 INFO L130 PetriNetUnfolder]: 17/67 cut-off events. [2023-09-01 00:24:01,765 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 00:24:01,765 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 00:24:01,766 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 11 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-09-01 00:24:01,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 75 flow [2023-09-01 00:24:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-09-01 00:24:01,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5012531328320802 [2023-09-01 00:24:01,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-09-01 00:24:01,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-09-01 00:24:01,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:01,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-09-01 00:24:01,770 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 00:24:01,772 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 00:24:01,772 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 00:24:01,772 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 3 states and 200 transitions. [2023-09-01 00:24:01,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 75 flow [2023-09-01 00:24:01,773 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 00:24:01,773 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-09-01 00:24:01,774 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 00:24:01,774 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-09-01 00:24:01,774 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-09-01 00:24:01,775 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 00:24:01,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:01,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:01,791 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 00:24:01,991 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 00:24:01,992 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 00:24:01,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1042171422, now seen corresponding path program 1 times [2023-09-01 00:24:01,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:01,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069319811] [2023-09-01 00:24:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:01,993 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 00:24:01,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:01,994 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 00:24:02,001 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 00:24:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:02,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 00:24:02,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:02,104 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 00:24:02,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:02,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:02,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069319811] [2023-09-01 00:24:02,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069319811] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:02,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:02,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861695186] [2023-09-01 00:24:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:02,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:02,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:02,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 133 [2023-09-01 00:24:02,160 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 00:24:02,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:02,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 133 [2023-09-01 00:24:02,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:02,202 INFO L130 PetriNetUnfolder]: 17/62 cut-off events. [2023-09-01 00:24:02,202 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 00:24:02,203 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 00:24:02,203 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 11 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-09-01 00:24:02,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 71 flow [2023-09-01 00:24:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-09-01 00:24:02,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5087719298245614 [2023-09-01 00:24:02,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-09-01 00:24:02,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-09-01 00:24:02,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:02,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-09-01 00:24:02,206 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 00:24:02,207 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 00:24:02,208 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 00:24:02,208 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 203 transitions. [2023-09-01 00:24:02,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 71 flow [2023-09-01 00:24:02,208 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 00:24:02,209 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 45 flow [2023-09-01 00:24:02,209 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 00:24:02,209 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-09-01 00:24:02,210 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 45 flow [2023-09-01 00:24:02,210 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 00:24:02,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:02,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:02,237 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 00:24:02,419 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 00:24:02,419 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 00:24:02,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2052327257, now seen corresponding path program 1 times [2023-09-01 00:24:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:02,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165686627] [2023-09-01 00:24:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:02,420 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 00:24:02,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:02,421 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 00:24:02,424 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 00:24:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:02,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2023-09-01 00:24:02,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:24:02,539 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 00:24:02,587 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 00:24:02,600 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 00:24:02,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:24:02,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:24:02,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165686627] [2023-09-01 00:24:02,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165686627] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:02,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:02,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:24:02,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417568357] [2023-09-01 00:24:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:02,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:24:02,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:24:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:24:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:24:02,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 133 [2023-09-01 00:24:02,696 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 00:24:02,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:02,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 133 [2023-09-01 00:24:02,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:02,759 INFO L130 PetriNetUnfolder]: 8/41 cut-off events. [2023-09-01 00:24:02,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:02,759 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 00:24:02,759 INFO L137 encePairwiseOnDemand]: 126/133 looper letters, 9 selfloop transitions, 7 changer transitions 0/19 dead transitions. [2023-09-01 00:24:02,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 81 flow [2023-09-01 00:24:02,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2023-09-01 00:24:02,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4943609022556391 [2023-09-01 00:24:02,762 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 263 transitions. [2023-09-01 00:24:02,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 263 transitions. [2023-09-01 00:24:02,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:02,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 263 transitions. [2023-09-01 00:24:02,763 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 00:24:02,764 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 00:24:02,765 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 00:24:02,765 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 45 flow. Second operand 4 states and 263 transitions. [2023-09-01 00:24:02,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 81 flow [2023-09-01 00:24:02,766 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 00:24:02,766 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 55 flow [2023-09-01 00:24:02,767 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 00:24:02,767 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-09-01 00:24:02,767 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 55 flow [2023-09-01 00:24:02,768 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 00:24:02,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:02,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:02,780 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 00:24:02,977 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 00:24:02,977 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 00:24:02,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:02,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1470486454, now seen corresponding path program 1 times [2023-09-01 00:24:02,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:24:02,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361984678] [2023-09-01 00:24:02,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:02,978 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 00:24:02,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:24:02,979 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 00:24:02,981 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 00:24:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:24:03,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:24:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:24:03,075 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-09-01 00:24:03,075 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:24:03,076 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-09-01 00:24:03,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-09-01 00:24:03,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-09-01 00:24:03,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-09-01 00:24:03,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-09-01 00:24:03,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-09-01 00:24:03,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-09-01 00:24:03,091 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 00:24:03,279 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 00:24:03,280 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:03,283 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:24:03,283 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:24:03,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:24:03 BasicIcfg [2023-09-01 00:24:03,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:24:03,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:24:03,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:24:03,301 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:24:03,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:55" (3/4) ... [2023-09-01 00:24:03,303 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:24:03,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:24:03,304 INFO L158 Benchmark]: Toolchain (without parser) took 9091.80ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 75.5MB in the end (delta: -7.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-09-01 00:24:03,304 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:03,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.84ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 47.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 00:24:03,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.37ms. Allocated memory is still 88.1MB. Free memory was 47.9MB in the beginning and 45.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:24:03,305 INFO L158 Benchmark]: Boogie Preprocessor took 38.24ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 67.8MB in the end (delta: -22.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2023-09-01 00:24:03,305 INFO L158 Benchmark]: RCFGBuilder took 413.11ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 52.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 00:24:03,306 INFO L158 Benchmark]: TraceAbstraction took 8092.47ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 52.2MB in the beginning and 75.5MB in the end (delta: -23.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-09-01 00:24:03,306 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 130.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:03,308 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 65.0MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.84ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 47.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.37ms. Allocated memory is still 88.1MB. Free memory was 47.9MB in the beginning and 45.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.24ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 67.8MB in the end (delta: -22.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * RCFGBuilder took 413.11ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 52.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8092.47ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 52.2MB in the beginning and 75.5MB in the end (delta: -23.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 130.0MB. Free memory is still 75.5MB. 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: 5.2s, 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 == 0) [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: 8.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, 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 00:24:03,330 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