./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/04-mutex_36-trylock_nr.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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:42:50,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:42:50,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:42:50,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:42:50,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:42:50,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:42:50,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:42:50,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:42:50,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:42:50,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:42:50,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:42:50,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:42:50,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:42:50,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:42:50,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:42:50,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:42:50,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:42:50,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:42:50,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:42:50,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:42:50,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:42:50,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:42:50,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:42:50,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:42:50,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:42:50,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:42:50,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:42:50,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:42:50,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:42:50,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:42:50,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:42:50,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:42:50,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:42:50,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:42:50,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:42:50,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:42:50,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:42:50,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:42:50,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:42:50,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:42:50,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:42:50,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:42:50,796 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:42:50,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:42:50,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:42:50,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:42:50,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:42:50,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:42:50,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:42:50,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:42:50,800 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:42:50,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:42:50,801 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:42:50,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:42:50,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:42:50,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:42:50,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:42:50,802 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:42:50,803 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:42:50,803 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:42:50,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:42:50,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:42:50,804 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:42:50,804 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:42:50,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:42:50,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:42:50,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:42:50,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:42:50,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:42:50,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:42:50,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:42:50,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:42:50,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:42:50,806 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:42:50,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:42:50,806 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:42:50,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:42:51,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:42:51,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:42:51,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:42:51,150 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:42:51,150 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:42:51,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i [2023-08-30 03:42:52,448 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:42:52,798 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:42:52,799 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr.i [2023-08-30 03:42:52,815 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75c4993f4/c0c51301327b41098e73440f68ee5f94/FLAG0cd22530f [2023-08-30 03:42:52,830 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75c4993f4/c0c51301327b41098e73440f68ee5f94 [2023-08-30 03:42:52,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:42:52,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:42:52,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:42:52,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:42:52,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:42:52,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:42:52" (1/1) ... [2023-08-30 03:42:52,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b921b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:52, skipping insertion in model container [2023-08-30 03:42:52,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:42:52" (1/1) ... [2023-08-30 03:42:52,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:42:52,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:42:53,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:42:53,551 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:42:53,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:42:53,744 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:42:53,744 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:42:53,745 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:42:53,745 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:42:53,751 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:42:53,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53 WrapperNode [2023-08-30 03:42:53,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:42:53,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:42:53,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:42:53,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:42:53,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,820 INFO L138 Inliner]: procedures = 524, calls = 69, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 131 [2023-08-30 03:42:53,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:42:53,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:42:53,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:42:53,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:42:53,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:42:53,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:42:53,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:42:53,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:42:53,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (1/1) ... [2023-08-30 03:42:53,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:42:53,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:42:53,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:42:53,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:42:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-30 03:42:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-30 03:42:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-30 03:42:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-30 03:42:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-30 03:42:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-30 03:42:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:42:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:42:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:42:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:42:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:42:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:42:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-30 03:42:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:42:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-30 03:42:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-30 03:42:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:42:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:42:53,930 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:42:54,257 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:42:54,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:42:54,514 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:42:54,522 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:42:54,522 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-30 03:42:54,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:54 BoogieIcfgContainer [2023-08-30 03:42:54,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:42:54,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:42:54,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:42:54,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:42:54,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:42:52" (1/3) ... [2023-08-30 03:42:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78971a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:42:54, skipping insertion in model container [2023-08-30 03:42:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:53" (2/3) ... [2023-08-30 03:42:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78971a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:42:54, skipping insertion in model container [2023-08-30 03:42:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:54" (3/3) ... [2023-08-30 03:42:54,541 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2023-08-30 03:42:54,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:42:54,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-30 03:42:54,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:42:54,668 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 03:42:54,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 242 transitions, 500 flow [2023-08-30 03:42:54,820 INFO L130 PetriNetUnfolder]: 32/240 cut-off events. [2023-08-30 03:42:54,821 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 03:42:54,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 32/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 532 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 140. Up to 5 conditions per place. [2023-08-30 03:42:54,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 242 transitions, 500 flow [2023-08-30 03:42:54,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 236 transitions, 484 flow [2023-08-30 03:42:54,846 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:42:54,856 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 236 transitions, 484 flow [2023-08-30 03:42:54,858 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 236 transitions, 484 flow [2023-08-30 03:42:54,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 236 transitions, 484 flow [2023-08-30 03:42:54,919 INFO L130 PetriNetUnfolder]: 32/236 cut-off events. [2023-08-30 03:42:54,919 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 03:42:54,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 236 events. 32/236 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 518 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 138. Up to 5 conditions per place. [2023-08-30 03:42:54,940 INFO L119 LiptonReduction]: Number of co-enabled transitions 11934 [2023-08-30 03:43:07,037 INFO L134 LiptonReduction]: Checked pairs total: 11201 [2023-08-30 03:43:07,037 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-30 03:43:07,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:43:07,062 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;@3ffdcd79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:43:07,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:43:07,064 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:43:07,065 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:43:07,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:43:07,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:43:07,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-30 03:43:07,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:43:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1008, now seen corresponding path program 1 times [2023-08-30 03:43:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:43:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036218108] [2023-08-30 03:43:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:43:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:43:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:43:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:43:07,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:43:07,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036218108] [2023-08-30 03:43:07,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036218108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:43:07,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:43:07,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:43:07,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813406569] [2023-08-30 03:43:07,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:43:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:43:07,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:43:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:43:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:43:07,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 505 [2023-08-30 03:43:07,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 56 transitions, 124 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:43:07,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 505 [2023-08-30 03:43:07,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:43:07,427 INFO L130 PetriNetUnfolder]: 194/348 cut-off events. [2023-08-30 03:43:07,427 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-30 03:43:07,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 348 events. 194/348 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1222 event pairs, 119 based on Foata normal form. 56/244 useless extension candidates. Maximal degree in co-relation 572. Up to 293 conditions per place. [2023-08-30 03:43:07,431 INFO L137 encePairwiseOnDemand]: 490/505 looper letters, 24 selfloop transitions, 0 changer transitions 1/33 dead transitions. [2023-08-30 03:43:07,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 128 flow [2023-08-30 03:43:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:43:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:43:07,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 462 transitions. [2023-08-30 03:43:07,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45742574257425744 [2023-08-30 03:43:07,446 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 462 transitions. [2023-08-30 03:43:07,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 462 transitions. [2023-08-30 03:43:07,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:43:07,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 462 transitions. [2023-08-30 03:43:07,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,459 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,461 INFO L175 Difference]: Start difference. First operand has 42 places, 56 transitions, 124 flow. Second operand 2 states and 462 transitions. [2023-08-30 03:43:07,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 128 flow [2023-08-30 03:43:07,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 03:43:07,465 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 68 flow [2023-08-30 03:43:07,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-30 03:43:07,470 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -9 predicate places. [2023-08-30 03:43:07,470 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 68 flow [2023-08-30 03:43:07,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:43:07,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:43:07,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:43:07,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-30 03:43:07,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:43:07,472 INFO L85 PathProgramCache]: Analyzing trace with hash 30712677, now seen corresponding path program 1 times [2023-08-30 03:43:07,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:43:07,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077287919] [2023-08-30 03:43:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:43:07,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:43:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:43:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:43:07,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:43:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077287919] [2023-08-30 03:43:07,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077287919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:43:07,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:43:07,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:43:07,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706213119] [2023-08-30 03:43:07,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:43:07,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:43:07,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:43:07,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:43:07,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:43:07,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 505 [2023-08-30 03:43:07,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:43:07,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 505 [2023-08-30 03:43:07,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:43:07,816 INFO L130 PetriNetUnfolder]: 190/330 cut-off events. [2023-08-30 03:43:07,817 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 03:43:07,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 330 events. 190/330 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1114 event pairs, 118 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 621. Up to 285 conditions per place. [2023-08-30 03:43:07,819 INFO L137 encePairwiseOnDemand]: 501/505 looper letters, 22 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-08-30 03:43:07,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 112 flow [2023-08-30 03:43:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:43:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:43:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2023-08-30 03:43:07,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41122112211221123 [2023-08-30 03:43:07,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2023-08-30 03:43:07,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2023-08-30 03:43:07,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:43:07,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2023-08-30 03:43:07,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,830 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 68 flow. Second operand 3 states and 623 transitions. [2023-08-30 03:43:07,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 112 flow [2023-08-30 03:43:07,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:43:07,831 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 68 flow [2023-08-30 03:43:07,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2023-08-30 03:43:07,832 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -10 predicate places. [2023-08-30 03:43:07,832 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 68 flow [2023-08-30 03:43:07,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:07,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:43:07,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:43:07,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:43:07,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-30 03:43:07,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:43:07,834 INFO L85 PathProgramCache]: Analyzing trace with hash 30712678, now seen corresponding path program 1 times [2023-08-30 03:43:07,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:43:07,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387546736] [2023-08-30 03:43:07,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:43:07,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:43:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:43:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:43:07,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:43:07,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387546736] [2023-08-30 03:43:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387546736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:43:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:43:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:43:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542821019] [2023-08-30 03:43:07,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:43:07,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:43:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:43:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:43:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:43:08,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 505 [2023-08-30 03:43:08,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:43:08,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 505 [2023-08-30 03:43:08,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:43:08,092 INFO L130 PetriNetUnfolder]: 179/309 cut-off events. [2023-08-30 03:43:08,092 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 03:43:08,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 309 events. 179/309 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1037 event pairs, 110 based on Foata normal form. 6/185 useless extension candidates. Maximal degree in co-relation 581. Up to 264 conditions per place. [2023-08-30 03:43:08,094 INFO L137 encePairwiseOnDemand]: 501/505 looper letters, 20 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-30 03:43:08,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 108 flow [2023-08-30 03:43:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:43:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:43:08,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2023-08-30 03:43:08,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42178217821782177 [2023-08-30 03:43:08,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 639 transitions. [2023-08-30 03:43:08,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 639 transitions. [2023-08-30 03:43:08,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:43:08,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 639 transitions. [2023-08-30 03:43:08,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,101 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 68 flow. Second operand 3 states and 639 transitions. [2023-08-30 03:43:08,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 108 flow [2023-08-30 03:43:08,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:43:08,105 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 64 flow [2023-08-30 03:43:08,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2023-08-30 03:43:08,106 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2023-08-30 03:43:08,110 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 64 flow [2023-08-30 03:43:08,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:43:08,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:43:08,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:43:08,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-30 03:43:08,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:43:08,112 INFO L85 PathProgramCache]: Analyzing trace with hash 134010446, now seen corresponding path program 1 times [2023-08-30 03:43:08,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:43:08,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646597686] [2023-08-30 03:43:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:43:08,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:43:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:43:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:43:08,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:43:08,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646597686] [2023-08-30 03:43:08,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646597686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:43:08,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:43:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:43:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942602640] [2023-08-30 03:43:08,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:43:08,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:43:08,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:43:08,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:43:08,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:43:08,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 505 [2023-08-30 03:43:08,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:43:08,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 505 [2023-08-30 03:43:08,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:43:08,451 INFO L130 PetriNetUnfolder]: 242/391 cut-off events. [2023-08-30 03:43:08,452 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 03:43:08,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 391 events. 242/391 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1261 event pairs, 153 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 753. Up to 354 conditions per place. [2023-08-30 03:43:08,454 INFO L137 encePairwiseOnDemand]: 502/505 looper letters, 22 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-30 03:43:08,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 110 flow [2023-08-30 03:43:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:43:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:43:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2023-08-30 03:43:08,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40066006600660065 [2023-08-30 03:43:08,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2023-08-30 03:43:08,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2023-08-30 03:43:08,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:43:08,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2023-08-30 03:43:08,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,464 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 64 flow. Second operand 3 states and 607 transitions. [2023-08-30 03:43:08,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 110 flow [2023-08-30 03:43:08,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:43:08,465 INFO L231 Difference]: Finished difference. Result has 29 places, 27 transitions, 62 flow [2023-08-30 03:43:08,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=27} [2023-08-30 03:43:08,466 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2023-08-30 03:43:08,466 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 27 transitions, 62 flow [2023-08-30 03:43:08,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.75) internal successors, (783), 4 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:43:08,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:43:08,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:43:08,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-30 03:43:08,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:43:08,468 INFO L85 PathProgramCache]: Analyzing trace with hash 134010447, now seen corresponding path program 1 times [2023-08-30 03:43:08,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:43:08,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043051903] [2023-08-30 03:43:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:43:08,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:43:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:43:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:43:08,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:43:08,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043051903] [2023-08-30 03:43:08,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043051903] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:43:08,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:43:08,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:43:08,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045767553] [2023-08-30 03:43:08,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:43:08,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:43:08,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:43:08,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:43:08,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:43:08,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 505 [2023-08-30 03:43:08,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:43:08,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 505 [2023-08-30 03:43:08,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:43:08,677 INFO L130 PetriNetUnfolder]: 236/381 cut-off events. [2023-08-30 03:43:08,677 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 03:43:08,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 381 events. 236/381 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1218 event pairs, 148 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 731. Up to 342 conditions per place. [2023-08-30 03:43:08,679 INFO L137 encePairwiseOnDemand]: 502/505 looper letters, 20 selfloop transitions, 2 changer transitions 1/26 dead transitions. [2023-08-30 03:43:08,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 106 flow [2023-08-30 03:43:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:43:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:43:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-08-30 03:43:08,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158415841584158 [2023-08-30 03:43:08,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-08-30 03:43:08,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-08-30 03:43:08,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:43:08,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-08-30 03:43:08,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,688 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 62 flow. Second operand 3 states and 630 transitions. [2023-08-30 03:43:08,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 106 flow [2023-08-30 03:43:08,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:43:08,689 INFO L231 Difference]: Finished difference. Result has 28 places, 25 transitions, 58 flow [2023-08-30 03:43:08,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2023-08-30 03:43:08,690 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2023-08-30 03:43:08,690 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 58 flow [2023-08-30 03:43:08,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:08,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:43:08,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:43:08,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:43:08,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 8 more)] === [2023-08-30 03:43:08,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:43:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1519528871, now seen corresponding path program 1 times [2023-08-30 03:43:08,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:43:08,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019163095] [2023-08-30 03:43:08,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:43:08,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:43:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:43:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:43:09,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:43:09,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019163095] [2023-08-30 03:43:09,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019163095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:43:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:43:09,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:43:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862981410] [2023-08-30 03:43:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:43:09,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:43:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:43:09,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:43:09,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:43:09,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 505 [2023-08-30 03:43:09,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:09,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:43:09,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 505 [2023-08-30 03:43:09,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:43:09,172 INFO L130 PetriNetUnfolder]: 154/260 cut-off events. [2023-08-30 03:43:09,173 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 03:43:09,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 260 events. 154/260 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 776 event pairs, 91 based on Foata normal form. 1/163 useless extension candidates. Maximal degree in co-relation 491. Up to 225 conditions per place. [2023-08-30 03:43:09,173 INFO L137 encePairwiseOnDemand]: 503/505 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-08-30 03:43:09,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 94 flow [2023-08-30 03:43:09,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:43:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:43:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-08-30 03:43:09,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158415841584158 [2023-08-30 03:43:09,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-08-30 03:43:09,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-08-30 03:43:09,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:43:09,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-08-30 03:43:09,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:09,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:09,182 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 505.0) internal successors, (2020), 4 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:09,182 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 58 flow. Second operand 3 states and 630 transitions. [2023-08-30 03:43:09,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 94 flow [2023-08-30 03:43:09,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 93 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:43:09,190 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-30 03:43:09,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-30 03:43:09,194 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2023-08-30 03:43:09,194 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-30 03:43:09,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:43:09,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:43:09,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:43:09,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (8 of 11 remaining) [2023-08-30 03:43:09,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:43:09,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:43:09,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:43:09,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2023-08-30 03:43:09,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2023-08-30 03:43:09,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2023-08-30 03:43:09,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:43:09,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:43:09,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:43:09,204 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 03:43:09,210 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:43:09,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:43:09,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:43:09 BasicIcfg [2023-08-30 03:43:09,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:43:09,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:43:09,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:43:09,216 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:43:09,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:54" (3/4) ... [2023-08-30 03:43:09,219 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:43:09,224 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2023-08-30 03:43:09,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2023-08-30 03:43:09,230 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-08-30 03:43:09,230 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 03:43:09,230 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 03:43:09,230 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:43:09,231 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:43:09,273 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:43:09,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:43:09,274 INFO L158 Benchmark]: Toolchain (without parser) took 16441.19ms. Allocated memory was 62.9MB in the beginning and 132.1MB in the end (delta: 69.2MB). Free memory was 37.0MB in the beginning and 89.8MB in the end (delta: -52.8MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,274 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:43:09,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 917.55ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 36.8MB in the beginning and 41.8MB in the end (delta: -4.9MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.39ms. Allocated memory is still 90.2MB. Free memory was 41.8MB in the beginning and 61.9MB in the end (delta: -20.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,275 INFO L158 Benchmark]: Boogie Preprocessor took 39.78ms. Allocated memory is still 90.2MB. Free memory was 61.9MB in the beginning and 59.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,276 INFO L158 Benchmark]: RCFGBuilder took 665.62ms. Allocated memory is still 90.2MB. Free memory was 59.0MB in the beginning and 55.6MB in the end (delta: 3.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,276 INFO L158 Benchmark]: TraceAbstraction took 14685.31ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 55.1MB in the beginning and 92.9MB in the end (delta: -37.8MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,276 INFO L158 Benchmark]: Witness Printer took 58.28ms. Allocated memory is still 132.1MB. Free memory was 92.9MB in the beginning and 89.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:43:09,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 917.55ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 36.8MB in the beginning and 41.8MB in the end (delta: -4.9MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.39ms. Allocated memory is still 90.2MB. Free memory was 41.8MB in the beginning and 61.9MB in the end (delta: -20.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.78ms. Allocated memory is still 90.2MB. Free memory was 61.9MB in the beginning and 59.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.62ms. Allocated memory is still 90.2MB. Free memory was 59.0MB in the beginning and 55.6MB in the end (delta: 3.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14685.31ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 55.1MB in the beginning and 92.9MB in the end (delta: -37.8MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Witness Printer took 58.28ms. Allocated memory is still 132.1MB. Free memory was 92.9MB in the beginning and 89.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2s, 211 PlacesBefore, 42 PlacesAfterwards, 236 TransitionsBefore, 56 TransitionsAfterwards, 11934 CoEnabledTransitionPairs, 8 FixpointIterations, 90 TrivialSequentialCompositions, 127 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 26 ConcurrentYvCompositions, 11 ChoiceCompositions, 263 TotalNumberOfCompositions, 11201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10607, independent: 10588, independent conditional: 0, independent unconditional: 10588, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6478, independent: 6470, independent conditional: 0, independent unconditional: 6470, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10607, independent: 4118, independent conditional: 0, independent unconditional: 4118, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 6478, unknown conditional: 0, unknown unconditional: 6478] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1835]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 295 locations, 11 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: 14.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 747 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 621 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 55 mSDtfsCounter, 621 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.8s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:43:09,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE