./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/pthread-wmm/safe026_tso.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 80799f6c8fd7356eb24d2cdce2b9813d505d1c320a66d664e71d3261c3c21a3d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 20:48:19,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 20:48:19,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 20:48:19,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 20:48:19,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 20:48:19,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 20:48:19,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 20:48:19,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 20:48:19,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 20:48:19,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 20:48:19,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 20:48:19,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 20:48:19,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 20:48:19,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 20:48:19,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 20:48:19,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 20:48:19,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 20:48:19,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 20:48:19,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 20:48:19,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 20:48:19,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 20:48:19,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 20:48:19,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 20:48:19,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 20:48:19,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 20:48:19,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 20:48:19,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 20:48:19,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 20:48:19,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 20:48:19,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 20:48:19,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 20:48:19,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 20:48:19,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 20:48:19,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 20:48:19,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 20:48:19,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 20:48:19,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 20:48:19,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 20:48:19,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 20:48:19,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 20:48:19,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 20:48:19,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 20:48:19,931 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 20:48:19,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 20:48:19,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 20:48:19,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 20:48:19,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 20:48:19,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 20:48:19,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 20:48:19,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 20:48:19,934 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 20:48:19,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 20:48:19,935 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 20:48:19,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 20:48:19,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 20:48:19,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 20:48:19,937 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 20:48:19,937 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 20:48:19,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 20:48:19,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 20:48:19,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 20:48:19,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:48:19,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 20:48:19,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 20:48:19,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 20:48:19,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 20:48:19,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 20:48:19,938 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 20:48:19,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 20:48:19,939 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 20:48:19,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80799f6c8fd7356eb24d2cdce2b9813d505d1c320a66d664e71d3261c3c21a3d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 20:48:20,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 20:48:20,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 20:48:20,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 20:48:20,182 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 20:48:20,183 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 20:48:20,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2023-08-29 20:48:21,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 20:48:21,366 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 20:48:21,366 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2023-08-29 20:48:21,375 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266a403a4/4cf0377c9a46489583af6df94b52e8a4/FLAG71c76308a [2023-08-29 20:48:21,390 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266a403a4/4cf0377c9a46489583af6df94b52e8a4 [2023-08-29 20:48:21,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 20:48:21,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 20:48:21,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 20:48:21,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 20:48:21,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 20:48:21,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fb4002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21, skipping insertion in model container [2023-08-29 20:48:21,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 20:48:21,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:48:21,556 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.i[945,958] [2023-08-29 20:48:21,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:48:21,699 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 20:48:21,709 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.i[945,958] [2023-08-29 20:48:21,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:48:21,785 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:48:21,786 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:48:21,790 INFO L208 MainTranslator]: Completed translation [2023-08-29 20:48:21,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21 WrapperNode [2023-08-29 20:48:21,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 20:48:21,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 20:48:21,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 20:48:21,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 20:48:21,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,840 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-29 20:48:21,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 20:48:21,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 20:48:21,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 20:48:21,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 20:48:21,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 20:48:21,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 20:48:21,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 20:48:21,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 20:48:21,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (1/1) ... [2023-08-29 20:48:21,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:48:21,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 20:48:21,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 20:48:21,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 20:48:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 20:48:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 20:48:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 20:48:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 20:48:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 20:48:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-29 20:48:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-29 20:48:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-29 20:48:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-29 20:48:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-29 20:48:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-29 20:48:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 20:48:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 20:48:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 20:48:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 20:48:21,924 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 20:48:22,068 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 20:48:22,084 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 20:48:22,233 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 20:48:22,238 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 20:48:22,238 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 20:48:22,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:48:22 BoogieIcfgContainer [2023-08-29 20:48:22,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 20:48:22,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 20:48:22,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 20:48:22,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 20:48:22,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:48:21" (1/3) ... [2023-08-29 20:48:22,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380db4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:48:22, skipping insertion in model container [2023-08-29 20:48:22,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:48:21" (2/3) ... [2023-08-29 20:48:22,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380db4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:48:22, skipping insertion in model container [2023-08-29 20:48:22,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:48:22" (3/3) ... [2023-08-29 20:48:22,245 INFO L112 eAbstractionObserver]: Analyzing ICFG safe026_tso.i [2023-08-29 20:48:22,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 20:48:22,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 20:48:22,257 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 20:48:22,338 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 20:48:22,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 201 flow [2023-08-29 20:48:22,411 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-08-29 20:48:22,412 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:48:22,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2023-08-29 20:48:22,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 93 transitions, 201 flow [2023-08-29 20:48:22,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 86 transitions, 181 flow [2023-08-29 20:48:22,423 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 20:48:22,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-29 20:48:22,432 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-29 20:48:22,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 181 flow [2023-08-29 20:48:22,448 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-29 20:48:22,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:48:22,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-29 20:48:22,450 INFO L119 LiptonReduction]: Number of co-enabled transitions 1416 [2023-08-29 20:48:24,804 INFO L134 LiptonReduction]: Checked pairs total: 2917 [2023-08-29 20:48:24,805 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-08-29 20:48:24,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 20:48:24,820 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;@2d55ea8a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 20:48:24,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 20:48:24,821 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 20:48:24,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:48:24,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:24,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 20:48:24,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:24,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:24,826 INFO L85 PathProgramCache]: Analyzing trace with hash 338, now seen corresponding path program 1 times [2023-08-29 20:48:24,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:24,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61872356] [2023-08-29 20:48:24,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:24,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:24,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:24,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61872356] [2023-08-29 20:48:24,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61872356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:24,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:24,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 20:48:24,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814607440] [2023-08-29 20:48:24,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:24,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 20:48:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:24,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 20:48:24,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 20:48:24,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 189 [2023-08-29 20:48:24,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:24,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:24,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 189 [2023-08-29 20:48:24,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:25,087 INFO L130 PetriNetUnfolder]: 218/371 cut-off events. [2023-08-29 20:48:25,087 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-29 20:48:25,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 371 events. 218/371 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1487 event pairs, 218 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 742. Up to 352 conditions per place. [2023-08-29 20:48:25,093 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 15 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-08-29 20:48:25,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 73 flow [2023-08-29 20:48:25,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 20:48:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 20:48:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-29 20:48:25,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2023-08-29 20:48:25,105 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-29 20:48:25,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-29 20:48:25,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:25,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-29 20:48:25,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,113 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,114 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 2 states and 196 transitions. [2023-08-29 20:48:25,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 73 flow [2023-08-29 20:48:25,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 20:48:25,116 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2023-08-29 20:48:25,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2023-08-29 20:48:25,120 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2023-08-29 20:48:25,120 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 40 flow [2023-08-29 20:48:25,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:25,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:25,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 20:48:25,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:25,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:25,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1546795521, now seen corresponding path program 1 times [2023-08-29 20:48:25,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:25,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835492934] [2023-08-29 20:48:25,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:25,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:25,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835492934] [2023-08-29 20:48:25,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835492934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:25,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:25,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 20:48:25,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875116944] [2023-08-29 20:48:25,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:25,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 20:48:25,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:25,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 20:48:25,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 20:48:25,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-29 20:48:25,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:25,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-29 20:48:25,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:25,593 INFO L130 PetriNetUnfolder]: 556/895 cut-off events. [2023-08-29 20:48:25,608 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:48:25,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 895 events. 556/895 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3876 event pairs, 177 based on Foata normal form. 0/851 useless extension candidates. Maximal degree in co-relation 1832. Up to 561 conditions per place. [2023-08-29 20:48:25,612 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 23 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2023-08-29 20:48:25,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 124 flow [2023-08-29 20:48:25,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 20:48:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 20:48:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2023-08-29 20:48:25,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-29 20:48:25,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2023-08-29 20:48:25,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2023-08-29 20:48:25,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:25,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2023-08-29 20:48:25,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,618 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 40 flow. Second operand 3 states and 270 transitions. [2023-08-29 20:48:25,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 124 flow [2023-08-29 20:48:25,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 20:48:25,619 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 86 flow [2023-08-29 20:48:25,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2023-08-29 20:48:25,619 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-29 20:48:25,619 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 86 flow [2023-08-29 20:48:25,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:25,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:25,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 20:48:25,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:25,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:25,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1546795523, now seen corresponding path program 1 times [2023-08-29 20:48:25,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:25,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377780129] [2023-08-29 20:48:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:25,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:25,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:25,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377780129] [2023-08-29 20:48:25,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377780129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:25,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:25,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:48:25,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215261539] [2023-08-29 20:48:25,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:25,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:48:25,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:25,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:48:25,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:48:25,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 189 [2023-08-29 20:48:25,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:25,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:25,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 189 [2023-08-29 20:48:25,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:26,043 INFO L130 PetriNetUnfolder]: 294/514 cut-off events. [2023-08-29 20:48:26,043 INFO L131 PetriNetUnfolder]: For 295/304 co-relation queries the response was YES. [2023-08-29 20:48:26,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1308 conditions, 514 events. 294/514 cut-off events. For 295/304 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2300 event pairs, 75 based on Foata normal form. 69/566 useless extension candidates. Maximal degree in co-relation 1303. Up to 425 conditions per place. [2023-08-29 20:48:26,046 INFO L137 encePairwiseOnDemand]: 185/189 looper letters, 19 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-29 20:48:26,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 136 flow [2023-08-29 20:48:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:48:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:48:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 381 transitions. [2023-08-29 20:48:26,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4031746031746032 [2023-08-29 20:48:26,048 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 381 transitions. [2023-08-29 20:48:26,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 381 transitions. [2023-08-29 20:48:26,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:26,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 381 transitions. [2023-08-29 20:48:26,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,051 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,051 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 86 flow. Second operand 5 states and 381 transitions. [2023-08-29 20:48:26,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 136 flow [2023-08-29 20:48:26,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 20:48:26,053 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 72 flow [2023-08-29 20:48:26,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-08-29 20:48:26,054 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-08-29 20:48:26,054 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 72 flow [2023-08-29 20:48:26,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:26,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:26,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 20:48:26,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:26,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash 660943788, now seen corresponding path program 1 times [2023-08-29 20:48:26,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:26,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432233263] [2023-08-29 20:48:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:26,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:26,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:26,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432233263] [2023-08-29 20:48:26,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432233263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:26,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:26,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:48:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066652209] [2023-08-29 20:48:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:26,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:48:26,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:26,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:48:26,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:48:26,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-29 20:48:26,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:26,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-29 20:48:26,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:26,235 INFO L130 PetriNetUnfolder]: 359/594 cut-off events. [2023-08-29 20:48:26,235 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-29 20:48:26,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 594 events. 359/594 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2283 event pairs, 99 based on Foata normal form. 8/602 useless extension candidates. Maximal degree in co-relation 1485. Up to 339 conditions per place. [2023-08-29 20:48:26,238 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 24 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2023-08-29 20:48:26,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 156 flow [2023-08-29 20:48:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 20:48:26,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 20:48:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 349 transitions. [2023-08-29 20:48:26,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46164021164021163 [2023-08-29 20:48:26,239 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 349 transitions. [2023-08-29 20:48:26,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 349 transitions. [2023-08-29 20:48:26,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:26,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 349 transitions. [2023-08-29 20:48:26,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,242 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,242 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 72 flow. Second operand 4 states and 349 transitions. [2023-08-29 20:48:26,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 156 flow [2023-08-29 20:48:26,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 151 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 20:48:26,243 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 105 flow [2023-08-29 20:48:26,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-29 20:48:26,244 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-29 20:48:26,244 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 105 flow [2023-08-29 20:48:26,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:26,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:26,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 20:48:26,245 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:26,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:26,245 INFO L85 PathProgramCache]: Analyzing trace with hash 706019555, now seen corresponding path program 1 times [2023-08-29 20:48:26,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:26,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548544649] [2023-08-29 20:48:26,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:26,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:26,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:26,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548544649] [2023-08-29 20:48:26,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548544649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:26,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:26,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:48:26,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338591946] [2023-08-29 20:48:26,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:26,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:48:26,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:26,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:48:26,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:48:26,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-29 20:48:26,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:26,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-29 20:48:26,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:26,440 INFO L130 PetriNetUnfolder]: 336/559 cut-off events. [2023-08-29 20:48:26,440 INFO L131 PetriNetUnfolder]: For 429/429 co-relation queries the response was YES. [2023-08-29 20:48:26,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 559 events. 336/559 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2213 event pairs, 73 based on Foata normal form. 6/565 useless extension candidates. Maximal degree in co-relation 1609. Up to 360 conditions per place. [2023-08-29 20:48:26,442 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 29 selfloop transitions, 11 changer transitions 0/40 dead transitions. [2023-08-29 20:48:26,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 249 flow [2023-08-29 20:48:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 20:48:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 20:48:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2023-08-29 20:48:26,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2023-08-29 20:48:26,444 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2023-08-29 20:48:26,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2023-08-29 20:48:26,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:26,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2023-08-29 20:48:26,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,446 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,447 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 105 flow. Second operand 4 states and 357 transitions. [2023-08-29 20:48:26,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 249 flow [2023-08-29 20:48:26,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 245 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 20:48:26,449 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 168 flow [2023-08-29 20:48:26,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2023-08-29 20:48:26,450 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-08-29 20:48:26,450 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 168 flow [2023-08-29 20:48:26,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:26,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:26,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 20:48:26,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:26,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash 411752048, now seen corresponding path program 1 times [2023-08-29 20:48:26,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:26,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490009004] [2023-08-29 20:48:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:26,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:26,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490009004] [2023-08-29 20:48:26,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490009004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:26,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:26,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:48:26,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439162939] [2023-08-29 20:48:26,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:26,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:48:26,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:48:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:48:26,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-29 20:48:26,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:26,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-29 20:48:26,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:26,663 INFO L130 PetriNetUnfolder]: 258/473 cut-off events. [2023-08-29 20:48:26,663 INFO L131 PetriNetUnfolder]: For 869/920 co-relation queries the response was YES. [2023-08-29 20:48:26,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1511 conditions, 473 events. 258/473 cut-off events. For 869/920 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2254 event pairs, 52 based on Foata normal form. 56/516 useless extension candidates. Maximal degree in co-relation 1501. Up to 271 conditions per place. [2023-08-29 20:48:26,681 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 39 selfloop transitions, 7 changer transitions 11/63 dead transitions. [2023-08-29 20:48:26,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 63 transitions, 489 flow [2023-08-29 20:48:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:48:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:48:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2023-08-29 20:48:26,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47513227513227513 [2023-08-29 20:48:26,685 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2023-08-29 20:48:26,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2023-08-29 20:48:26,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:26,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2023-08-29 20:48:26,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,687 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,687 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 168 flow. Second operand 5 states and 449 transitions. [2023-08-29 20:48:26,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 63 transitions, 489 flow [2023-08-29 20:48:26,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 63 transitions, 485 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-29 20:48:26,690 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 220 flow [2023-08-29 20:48:26,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2023-08-29 20:48:26,690 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2023-08-29 20:48:26,690 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 220 flow [2023-08-29 20:48:26,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:26,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:26,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 20:48:26,691 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:26,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash -489076811, now seen corresponding path program 1 times [2023-08-29 20:48:26,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:26,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597196252] [2023-08-29 20:48:26,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:26,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:26,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:26,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597196252] [2023-08-29 20:48:26,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597196252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:26,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:26,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:48:26,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547174255] [2023-08-29 20:48:26,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:26,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:48:26,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:26,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:48:26,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:48:26,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-29 20:48:26,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 220 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:26,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-29 20:48:26,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:26,907 INFO L130 PetriNetUnfolder]: 213/419 cut-off events. [2023-08-29 20:48:26,907 INFO L131 PetriNetUnfolder]: For 1124/1264 co-relation queries the response was YES. [2023-08-29 20:48:26,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 419 events. 213/419 cut-off events. For 1124/1264 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2030 event pairs, 19 based on Foata normal form. 92/503 useless extension candidates. Maximal degree in co-relation 1748. Up to 200 conditions per place. [2023-08-29 20:48:26,909 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 44 selfloop transitions, 13 changer transitions 18/81 dead transitions. [2023-08-29 20:48:26,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 81 transitions, 692 flow [2023-08-29 20:48:26,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:48:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:48:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 627 transitions. [2023-08-29 20:48:26,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47392290249433106 [2023-08-29 20:48:26,911 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 627 transitions. [2023-08-29 20:48:26,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 627 transitions. [2023-08-29 20:48:26,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:26,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 627 transitions. [2023-08-29 20:48:26,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.57142857142857) internal successors, (627), 7 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,914 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,914 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 220 flow. Second operand 7 states and 627 transitions. [2023-08-29 20:48:26,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 81 transitions, 692 flow [2023-08-29 20:48:26,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 688 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 20:48:26,924 INFO L231 Difference]: Finished difference. Result has 52 places, 38 transitions, 304 flow [2023-08-29 20:48:26,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=304, PETRI_PLACES=52, PETRI_TRANSITIONS=38} [2023-08-29 20:48:26,925 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2023-08-29 20:48:26,925 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 304 flow [2023-08-29 20:48:26,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:26,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:26,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:26,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 20:48:26,926 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:26,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:26,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1766488355, now seen corresponding path program 1 times [2023-08-29 20:48:26,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:26,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419831889] [2023-08-29 20:48:26,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:26,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:27,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:27,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419831889] [2023-08-29 20:48:27,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419831889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:27,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:27,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:48:27,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909966748] [2023-08-29 20:48:27,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:27,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 20:48:27,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:27,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 20:48:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-29 20:48:27,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-29 20:48:27,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 38 transitions, 304 flow. Second operand has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:27,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-29 20:48:27,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:27,158 INFO L130 PetriNetUnfolder]: 181/373 cut-off events. [2023-08-29 20:48:27,158 INFO L131 PetriNetUnfolder]: For 1535/1738 co-relation queries the response was YES. [2023-08-29 20:48:27,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 373 events. 181/373 cut-off events. For 1535/1738 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1818 event pairs, 15 based on Foata normal form. 93/459 useless extension candidates. Maximal degree in co-relation 1797. Up to 169 conditions per place. [2023-08-29 20:48:27,160 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 39 selfloop transitions, 17 changer transitions 19/81 dead transitions. [2023-08-29 20:48:27,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 750 flow [2023-08-29 20:48:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 20:48:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 20:48:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 791 transitions. [2023-08-29 20:48:27,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46502057613168724 [2023-08-29 20:48:27,163 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 791 transitions. [2023-08-29 20:48:27,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 791 transitions. [2023-08-29 20:48:27,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:27,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 791 transitions. [2023-08-29 20:48:27,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.88888888888889) internal successors, (791), 9 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,166 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,166 INFO L175 Difference]: Start difference. First operand has 52 places, 38 transitions, 304 flow. Second operand 9 states and 791 transitions. [2023-08-29 20:48:27,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 750 flow [2023-08-29 20:48:27,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 81 transitions, 720 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-29 20:48:27,173 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 330 flow [2023-08-29 20:48:27,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=330, PETRI_PLACES=61, PETRI_TRANSITIONS=39} [2023-08-29 20:48:27,175 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2023-08-29 20:48:27,175 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 330 flow [2023-08-29 20:48:27,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:27,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:27,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 20:48:27,176 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:27,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:27,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1856354286, now seen corresponding path program 1 times [2023-08-29 20:48:27,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:27,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811260607] [2023-08-29 20:48:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:27,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:27,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:27,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811260607] [2023-08-29 20:48:27,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811260607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:27,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:27,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:48:27,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676160428] [2023-08-29 20:48:27,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:27,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:48:27,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:27,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:48:27,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:48:27,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 189 [2023-08-29 20:48:27,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 39 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:27,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 189 [2023-08-29 20:48:27,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:27,414 INFO L130 PetriNetUnfolder]: 277/538 cut-off events. [2023-08-29 20:48:27,414 INFO L131 PetriNetUnfolder]: For 2176/2176 co-relation queries the response was YES. [2023-08-29 20:48:27,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 538 events. 277/538 cut-off events. For 2176/2176 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2607 event pairs, 30 based on Foata normal form. 1/539 useless extension candidates. Maximal degree in co-relation 2669. Up to 255 conditions per place. [2023-08-29 20:48:27,417 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 29 selfloop transitions, 10 changer transitions 45/84 dead transitions. [2023-08-29 20:48:27,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 84 transitions, 837 flow [2023-08-29 20:48:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:48:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:48:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 433 transitions. [2023-08-29 20:48:27,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582010582010582 [2023-08-29 20:48:27,419 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 433 transitions. [2023-08-29 20:48:27,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 433 transitions. [2023-08-29 20:48:27,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:27,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 433 transitions. [2023-08-29 20:48:27,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,422 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,422 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 330 flow. Second operand 5 states and 433 transitions. [2023-08-29 20:48:27,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 84 transitions, 837 flow [2023-08-29 20:48:27,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 706 flow, removed 28 selfloop flow, removed 8 redundant places. [2023-08-29 20:48:27,431 INFO L231 Difference]: Finished difference. Result has 58 places, 30 transitions, 241 flow [2023-08-29 20:48:27,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=58, PETRI_TRANSITIONS=30} [2023-08-29 20:48:27,432 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 25 predicate places. [2023-08-29 20:48:27,432 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 30 transitions, 241 flow [2023-08-29 20:48:27,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:27,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:27,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 20:48:27,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:27,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash 190113550, now seen corresponding path program 2 times [2023-08-29 20:48:27,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:27,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539676262] [2023-08-29 20:48:27,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:27,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:27,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:27,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539676262] [2023-08-29 20:48:27,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539676262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:27,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:27,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:48:27,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068481546] [2023-08-29 20:48:27,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:27,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:48:27,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:27,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:48:27,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:48:27,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-29 20:48:27,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 30 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:27,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-29 20:48:27,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:27,583 INFO L130 PetriNetUnfolder]: 47/121 cut-off events. [2023-08-29 20:48:27,584 INFO L131 PetriNetUnfolder]: For 450/452 co-relation queries the response was YES. [2023-08-29 20:48:27,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 121 events. 47/121 cut-off events. For 450/452 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 387 event pairs, 6 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 559. Up to 61 conditions per place. [2023-08-29 20:48:27,584 INFO L137 encePairwiseOnDemand]: 185/189 looper letters, 25 selfloop transitions, 4 changer transitions 21/53 dead transitions. [2023-08-29 20:48:27,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 468 flow [2023-08-29 20:48:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:48:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:48:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 440 transitions. [2023-08-29 20:48:27,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2023-08-29 20:48:27,586 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 440 transitions. [2023-08-29 20:48:27,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 440 transitions. [2023-08-29 20:48:27,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:27,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 440 transitions. [2023-08-29 20:48:27,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,588 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,589 INFO L175 Difference]: Start difference. First operand has 58 places, 30 transitions, 241 flow. Second operand 5 states and 440 transitions. [2023-08-29 20:48:27,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 468 flow [2023-08-29 20:48:27,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 420 flow, removed 8 selfloop flow, removed 10 redundant places. [2023-08-29 20:48:27,591 INFO L231 Difference]: Finished difference. Result has 48 places, 28 transitions, 186 flow [2023-08-29 20:48:27,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=28} [2023-08-29 20:48:27,591 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2023-08-29 20:48:27,591 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 28 transitions, 186 flow [2023-08-29 20:48:27,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:48:27,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:27,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 20:48:27,592 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:48:27,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:48:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash 723992946, now seen corresponding path program 3 times [2023-08-29 20:48:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:48:27,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400038334] [2023-08-29 20:48:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:48:27,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:48:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:48:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:48:27,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:48:27,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400038334] [2023-08-29 20:48:27,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400038334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:48:27,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:48:27,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:48:27,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134403867] [2023-08-29 20:48:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:48:27,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:48:27,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:48:27,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:48:27,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:48:27,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-29 20:48:27,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 28 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:48:27,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-29 20:48:27,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:48:27,696 INFO L130 PetriNetUnfolder]: 29/77 cut-off events. [2023-08-29 20:48:27,696 INFO L131 PetriNetUnfolder]: For 253/255 co-relation queries the response was YES. [2023-08-29 20:48:27,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 77 events. 29/77 cut-off events. For 253/255 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 195 event pairs, 8 based on Foata normal form. 1/77 useless extension candidates. Maximal degree in co-relation 344. Up to 49 conditions per place. [2023-08-29 20:48:27,696 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-29 20:48:27,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 28 transitions, 236 flow [2023-08-29 20:48:27,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 20:48:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 20:48:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-29 20:48:27,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455026455026455 [2023-08-29 20:48:27,698 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-29 20:48:27,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-29 20:48:27,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:48:27,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-29 20:48:27,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,700 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,700 INFO L175 Difference]: Start difference. First operand has 48 places, 28 transitions, 186 flow. Second operand 4 states and 344 transitions. [2023-08-29 20:48:27,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 28 transitions, 236 flow [2023-08-29 20:48:27,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 28 transitions, 199 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-29 20:48:27,701 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-29 20:48:27,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-29 20:48:27,701 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-29 20:48:27,702 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-29 20:48:27,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:48:27,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-29 20:48:27,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-29 20:48:27,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-29 20:48:27,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-29 20:48:27,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-29 20:48:27,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-29 20:48:27,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-29 20:48:27,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-29 20:48:27,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-29 20:48:27,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-29 20:48:27,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-29 20:48:27,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 20:48:27,706 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:48:27,707 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 20:48:27,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 20:48:27,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:48:27 BasicIcfg [2023-08-29 20:48:27,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 20:48:27,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 20:48:27,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 20:48:27,710 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 20:48:27,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:48:22" (3/4) ... [2023-08-29 20:48:27,712 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 20:48:27,715 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-29 20:48:27,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-29 20:48:27,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-29 20:48:27,718 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-29 20:48:27,718 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 20:48:27,718 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 20:48:27,719 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 20:48:27,736 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 20:48:27,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 20:48:27,737 INFO L158 Benchmark]: Toolchain (without parser) took 6344.16ms. Allocated memory was 77.6MB in the beginning and 176.2MB in the end (delta: 98.6MB). Free memory was 53.2MB in the beginning and 67.6MB in the end (delta: -14.5MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,737 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:48:27,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.57ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 53.0MB in the end (delta: 165.5kB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.24ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,738 INFO L158 Benchmark]: Boogie Preprocessor took 33.14ms. Allocated memory is still 77.6MB. Free memory was 50.9MB in the beginning and 49.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,738 INFO L158 Benchmark]: RCFGBuilder took 364.63ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 35.1MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,738 INFO L158 Benchmark]: TraceAbstraction took 5468.31ms. Allocated memory was 77.6MB in the beginning and 176.2MB in the end (delta: 98.6MB). Free memory was 34.5MB in the beginning and 70.8MB in the end (delta: -36.3MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,738 INFO L158 Benchmark]: Witness Printer took 26.91ms. Allocated memory is still 176.2MB. Free memory was 70.8MB in the beginning and 67.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:48:27,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.57ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 53.0MB in the end (delta: 165.5kB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.24ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.14ms. Allocated memory is still 77.6MB. Free memory was 50.9MB in the beginning and 49.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.63ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 35.1MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5468.31ms. Allocated memory was 77.6MB in the beginning and 176.2MB in the end (delta: 98.6MB). Free memory was 34.5MB in the beginning and 70.8MB in the end (delta: -36.3MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 26.91ms. Allocated memory is still 176.2MB. Free memory was 70.8MB in the beginning and 67.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 94 PlacesBefore, 33 PlacesAfterwards, 86 TransitionsBefore, 24 TransitionsAfterwards, 1416 CoEnabledTransitionPairs, 7 FixpointIterations, 28 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 96 TotalNumberOfCompositions, 2917 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1737, independent: 1632, independent conditional: 0, independent unconditional: 1632, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 822, independent: 793, independent conditional: 0, independent unconditional: 793, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1737, independent: 839, independent conditional: 0, independent unconditional: 839, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 822, unknown conditional: 0, unknown unconditional: 822] , Statistics on independence cache: Total cache size (in pairs): 55, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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: -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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 771]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 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: 5.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 738 IncrementalHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 18 mSDtfsCounter, 738 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=8, InterpolantAutomatonStates: 53, 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, 1.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 20:48:27,753 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