./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:17:22,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:17:22,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:17:22,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:17:22,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:17:22,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:17:22,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:17:22,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:17:22,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:17:22,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:17:22,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:17:22,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:17:22,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:17:22,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:17:22,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:17:22,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:17:22,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:17:22,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:17:22,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:17:22,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:17:22,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:17:22,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:17:22,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:17:22,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:17:22,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:17:22,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:17:22,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:17:22,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:17:22,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:17:22,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:17:22,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:17:22,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:17:22,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:17:22,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:17:22,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:17:22,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:17:22,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:17:22,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:17:22,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:17:22,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:17:22,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:17:22,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:17:22,174 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:17:22,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:17:22,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:17:22,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:17:22,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:17:22,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:17:22,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:17:22,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:17:22,178 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:17:22,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:17:22,179 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:17:22,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:17:22,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:17:22,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:17:22,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:17:22,180 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:17:22,181 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:17:22,181 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:17:22,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:17:22,181 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:17:22,182 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:17:22,182 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:17:22,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:17:22,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:17:22,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:17:22,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:17:22,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:17:22,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:17:22,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:17:22,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:17:22,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:17:22,184 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:17:22,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:17:22,185 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:17:22,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80799f6c8fd7356eb24d2cdce2b9813d505d1c320a66d664e71d3261c3c21a3d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:17:22,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:17:22,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:17:22,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:17:22,514 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:17:22,514 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:17:22,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2023-08-30 03:17:23,777 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:17:24,095 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:17:24,097 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.i [2023-08-30 03:17:24,118 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58db5aecc/b02e4c729f954f13ac2fceb54f9c9f17/FLAG87d3f69ab [2023-08-30 03:17:24,129 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58db5aecc/b02e4c729f954f13ac2fceb54f9c9f17 [2023-08-30 03:17:24,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:17:24,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:17:24,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:17:24,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:17:24,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:17:24,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242521d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24, skipping insertion in model container [2023-08-30 03:17:24,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:17:24,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:17:24,322 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] [2023-08-30 03:17:24,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:17:24,436 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:17:24,446 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] [2023-08-30 03:17:24,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:17:24,550 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:17:24,551 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:17:24,556 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:17:24,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24 WrapperNode [2023-08-30 03:17:24,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:17:24,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:17:24,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:17:24,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:17:24,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,615 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-30 03:17:24,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:17:24,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:17:24,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:17:24,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:17:24,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:17:24,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:17:24,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:17:24,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:17:24,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (1/1) ... [2023-08-30 03:17:24,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:17:24,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:17:24,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:17:24,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:17:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:17:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:17:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:17:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:17:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:17:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:17:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:17:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:17:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:17:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:17:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:17:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:17:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:17:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:17:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:17:24,729 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:17:24,892 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:17:24,894 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:17:25,055 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:17:25,061 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:17:25,061 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:17:25,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:17:25 BoogieIcfgContainer [2023-08-30 03:17:25,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:17:25,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:17:25,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:17:25,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:17:25,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:17:24" (1/3) ... [2023-08-30 03:17:25,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a1a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:17:25, skipping insertion in model container [2023-08-30 03:17:25,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:24" (2/3) ... [2023-08-30 03:17:25,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a1a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:17:25, skipping insertion in model container [2023-08-30 03:17:25,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:17:25" (3/3) ... [2023-08-30 03:17:25,071 INFO L112 eAbstractionObserver]: Analyzing ICFG safe026_tso.i [2023-08-30 03:17:25,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:17:25,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:17:25,093 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:17:25,193 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:17:25,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 201 flow [2023-08-30 03:17:25,289 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-08-30 03:17:25,290 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:25,294 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. [2023-08-30 03:17:25,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 93 transitions, 201 flow [2023-08-30 03:17:25,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 86 transitions, 181 flow [2023-08-30 03:17:25,302 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:17:25,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 03:17:25,327 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 03:17:25,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 181 flow [2023-08-30 03:17:25,352 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 03:17:25,352 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:25,353 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. [2023-08-30 03:17:25,355 INFO L119 LiptonReduction]: Number of co-enabled transitions 1416 [2023-08-30 03:17:28,001 INFO L134 LiptonReduction]: Checked pairs total: 2917 [2023-08-30 03:17:28,001 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-08-30 03:17:28,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:17:28,020 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;@fc0d4a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:17:28,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:17:28,021 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:17:28,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:28,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:28,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:17:28,022 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)] === [2023-08-30 03:17:28,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 338, now seen corresponding path program 1 times [2023-08-30 03:17:28,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:28,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041521511] [2023-08-30 03:17:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:28,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:28,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:28,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041521511] [2023-08-30 03:17:28,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041521511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:28,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:28,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:17:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738639864] [2023-08-30 03:17:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:28,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:17:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:28,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:17:28,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:17:28,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 189 [2023-08-30 03:17:28,153 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) [2023-08-30 03:17:28,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:28,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 189 [2023-08-30 03:17:28,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:28,250 INFO L130 PetriNetUnfolder]: 218/371 cut-off events. [2023-08-30 03:17:28,251 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 03:17:28,252 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. [2023-08-30 03:17:28,255 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 15 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-08-30 03:17:28,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 73 flow [2023-08-30 03:17:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:17:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:17:28,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-30 03:17:28,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2023-08-30 03:17:28,266 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-30 03:17:28,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-30 03:17:28,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:28,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-30 03:17:28,271 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) [2023-08-30 03:17:28,275 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) [2023-08-30 03:17:28,275 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) [2023-08-30 03:17:28,276 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 2 states and 196 transitions. [2023-08-30 03:17:28,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 73 flow [2023-08-30 03:17:28,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:17:28,280 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2023-08-30 03:17:28,281 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} [2023-08-30 03:17:28,283 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2023-08-30 03:17:28,284 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 40 flow [2023-08-30 03:17:28,284 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) [2023-08-30 03:17:28,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:28,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:28,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:17:28,285 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)] === [2023-08-30 03:17:28,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1546795521, now seen corresponding path program 1 times [2023-08-30 03:17:28,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:28,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166219259] [2023-08-30 03:17:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:28,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:28,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166219259] [2023-08-30 03:17:28,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166219259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:28,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:28,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:17:28,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708928443] [2023-08-30 03:17:28,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:28,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:17:28,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:17:28,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:17:28,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-30 03:17:28,696 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) [2023-08-30 03:17:28,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:28,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-30 03:17:28,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:28,836 INFO L130 PetriNetUnfolder]: 556/895 cut-off events. [2023-08-30 03:17:28,837 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:28,840 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. [2023-08-30 03:17:28,844 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 23 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2023-08-30 03:17:28,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 124 flow [2023-08-30 03:17:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:17:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:17:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2023-08-30 03:17:28,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-30 03:17:28,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2023-08-30 03:17:28,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2023-08-30 03:17:28,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:28,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2023-08-30 03:17:28,853 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) [2023-08-30 03:17:28,856 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) [2023-08-30 03:17:28,857 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) [2023-08-30 03:17:28,857 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 40 flow. Second operand 3 states and 270 transitions. [2023-08-30 03:17:28,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 124 flow [2023-08-30 03:17:28,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:17:28,858 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 86 flow [2023-08-30 03:17:28,859 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} [2023-08-30 03:17:28,859 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-30 03:17:28,859 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 86 flow [2023-08-30 03:17:28,860 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) [2023-08-30 03:17:28,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:28,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:28,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:17:28,861 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)] === [2023-08-30 03:17:28,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:28,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1546795523, now seen corresponding path program 1 times [2023-08-30 03:17:28,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188684759] [2023-08-30 03:17:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:28,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:29,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:29,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188684759] [2023-08-30 03:17:29,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188684759] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:29,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:29,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:29,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313746227] [2023-08-30 03:17:29,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:29,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:17:29,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:29,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:17:29,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:17:29,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 189 [2023-08-30 03:17:29,384 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) [2023-08-30 03:17:29,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:29,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 189 [2023-08-30 03:17:29,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:29,480 INFO L130 PetriNetUnfolder]: 294/514 cut-off events. [2023-08-30 03:17:29,480 INFO L131 PetriNetUnfolder]: For 295/304 co-relation queries the response was YES. [2023-08-30 03:17:29,481 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. [2023-08-30 03:17:29,483 INFO L137 encePairwiseOnDemand]: 185/189 looper letters, 19 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-30 03:17:29,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 136 flow [2023-08-30 03:17:29,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 381 transitions. [2023-08-30 03:17:29,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4031746031746032 [2023-08-30 03:17:29,485 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 381 transitions. [2023-08-30 03:17:29,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 381 transitions. [2023-08-30 03:17:29,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:29,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 381 transitions. [2023-08-30 03:17:29,487 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) [2023-08-30 03:17:29,489 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) [2023-08-30 03:17:29,489 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) [2023-08-30 03:17:29,489 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 86 flow. Second operand 5 states and 381 transitions. [2023-08-30 03:17:29,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 136 flow [2023-08-30 03:17:29,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:17:29,492 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 72 flow [2023-08-30 03:17:29,492 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} [2023-08-30 03:17:29,493 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-08-30 03:17:29,493 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 72 flow [2023-08-30 03:17:29,493 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) [2023-08-30 03:17:29,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:29,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:29,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:17:29,494 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)] === [2023-08-30 03:17:29,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:29,495 INFO L85 PathProgramCache]: Analyzing trace with hash 660943788, now seen corresponding path program 1 times [2023-08-30 03:17:29,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:29,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164591091] [2023-08-30 03:17:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:29,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:29,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:29,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164591091] [2023-08-30 03:17:29,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164591091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:29,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:29,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:17:29,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623625909] [2023-08-30 03:17:29,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:29,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:29,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:29,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:29,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:29,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-30 03:17:29,609 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) [2023-08-30 03:17:29,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:29,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-30 03:17:29,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:29,687 INFO L130 PetriNetUnfolder]: 359/594 cut-off events. [2023-08-30 03:17:29,687 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 03:17:29,688 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. [2023-08-30 03:17:29,691 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 24 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2023-08-30 03:17:29,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 156 flow [2023-08-30 03:17:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:17:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:17:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 349 transitions. [2023-08-30 03:17:29,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46164021164021163 [2023-08-30 03:17:29,694 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 349 transitions. [2023-08-30 03:17:29,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 349 transitions. [2023-08-30 03:17:29,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:29,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 349 transitions. [2023-08-30 03:17:29,698 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) [2023-08-30 03:17:29,699 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) [2023-08-30 03:17:29,700 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) [2023-08-30 03:17:29,700 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 72 flow. Second operand 4 states and 349 transitions. [2023-08-30 03:17:29,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 156 flow [2023-08-30 03:17:29,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 151 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:17:29,702 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 105 flow [2023-08-30 03:17:29,702 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} [2023-08-30 03:17:29,703 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-30 03:17:29,703 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 105 flow [2023-08-30 03:17:29,704 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) [2023-08-30 03:17:29,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:29,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:29,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:17:29,704 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)] === [2023-08-30 03:17:29,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:29,705 INFO L85 PathProgramCache]: Analyzing trace with hash 706019555, now seen corresponding path program 1 times [2023-08-30 03:17:29,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:29,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984569768] [2023-08-30 03:17:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:29,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:29,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:29,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984569768] [2023-08-30 03:17:29,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984569768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:29,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:29,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:17:29,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447751697] [2023-08-30 03:17:29,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:29,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:29,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:29,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:29,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:29,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-30 03:17:29,862 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) [2023-08-30 03:17:29,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:29,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-30 03:17:29,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:29,952 INFO L130 PetriNetUnfolder]: 336/559 cut-off events. [2023-08-30 03:17:29,952 INFO L131 PetriNetUnfolder]: For 429/429 co-relation queries the response was YES. [2023-08-30 03:17:29,953 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. [2023-08-30 03:17:29,956 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 29 selfloop transitions, 11 changer transitions 0/40 dead transitions. [2023-08-30 03:17:29,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 249 flow [2023-08-30 03:17:29,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:17:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:17:29,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2023-08-30 03:17:29,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2023-08-30 03:17:29,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2023-08-30 03:17:29,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2023-08-30 03:17:29,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:29,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2023-08-30 03:17:29,960 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) [2023-08-30 03:17:29,961 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) [2023-08-30 03:17:29,962 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) [2023-08-30 03:17:29,962 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 105 flow. Second operand 4 states and 357 transitions. [2023-08-30 03:17:29,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 249 flow [2023-08-30 03:17:29,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 245 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:17:29,967 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 168 flow [2023-08-30 03:17:29,967 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} [2023-08-30 03:17:29,969 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-08-30 03:17:29,969 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 168 flow [2023-08-30 03:17:29,970 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) [2023-08-30 03:17:29,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:29,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:29,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:17:29,970 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)] === [2023-08-30 03:17:29,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 411752048, now seen corresponding path program 1 times [2023-08-30 03:17:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202314039] [2023-08-30 03:17:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:30,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:30,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202314039] [2023-08-30 03:17:30,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202314039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:30,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:30,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:17:30,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070350269] [2023-08-30 03:17:30,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:30,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:30,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:30,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:30,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-30 03:17:30,101 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) [2023-08-30 03:17:30,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:30,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-30 03:17:30,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:30,208 INFO L130 PetriNetUnfolder]: 258/473 cut-off events. [2023-08-30 03:17:30,209 INFO L131 PetriNetUnfolder]: For 869/920 co-relation queries the response was YES. [2023-08-30 03:17:30,210 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. [2023-08-30 03:17:30,211 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 39 selfloop transitions, 7 changer transitions 11/63 dead transitions. [2023-08-30 03:17:30,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 63 transitions, 489 flow [2023-08-30 03:17:30,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:30,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2023-08-30 03:17:30,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47513227513227513 [2023-08-30 03:17:30,214 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2023-08-30 03:17:30,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2023-08-30 03:17:30,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:30,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2023-08-30 03:17:30,215 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) [2023-08-30 03:17:30,217 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) [2023-08-30 03:17:30,217 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) [2023-08-30 03:17:30,218 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 168 flow. Second operand 5 states and 449 transitions. [2023-08-30 03:17:30,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 63 transitions, 489 flow [2023-08-30 03:17:30,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 63 transitions, 485 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-30 03:17:30,221 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 220 flow [2023-08-30 03:17:30,221 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} [2023-08-30 03:17:30,222 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2023-08-30 03:17:30,222 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 220 flow [2023-08-30 03:17:30,222 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) [2023-08-30 03:17:30,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:30,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:30,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:17:30,223 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)] === [2023-08-30 03:17:30,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:30,223 INFO L85 PathProgramCache]: Analyzing trace with hash -489076811, now seen corresponding path program 1 times [2023-08-30 03:17:30,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:30,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951917145] [2023-08-30 03:17:30,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:30,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951917145] [2023-08-30 03:17:30,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951917145] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:30,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:30,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:30,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895243920] [2023-08-30 03:17:30,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:30,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:17:30,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:30,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:17:30,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:17:30,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-30 03:17:30,359 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) [2023-08-30 03:17:30,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:30,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-30 03:17:30,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:30,458 INFO L130 PetriNetUnfolder]: 213/419 cut-off events. [2023-08-30 03:17:30,459 INFO L131 PetriNetUnfolder]: For 1124/1264 co-relation queries the response was YES. [2023-08-30 03:17:30,460 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. [2023-08-30 03:17:30,461 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 44 selfloop transitions, 13 changer transitions 18/81 dead transitions. [2023-08-30 03:17:30,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 81 transitions, 692 flow [2023-08-30 03:17:30,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:17:30,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:17:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 627 transitions. [2023-08-30 03:17:30,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47392290249433106 [2023-08-30 03:17:30,464 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 627 transitions. [2023-08-30 03:17:30,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 627 transitions. [2023-08-30 03:17:30,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:30,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 627 transitions. [2023-08-30 03:17:30,466 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) [2023-08-30 03:17:30,468 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) [2023-08-30 03:17:30,468 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) [2023-08-30 03:17:30,468 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 220 flow. Second operand 7 states and 627 transitions. [2023-08-30 03:17:30,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 81 transitions, 692 flow [2023-08-30 03:17:30,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 688 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:17:30,472 INFO L231 Difference]: Finished difference. Result has 52 places, 38 transitions, 304 flow [2023-08-30 03:17:30,493 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} [2023-08-30 03:17:30,494 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2023-08-30 03:17:30,494 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 304 flow [2023-08-30 03:17:30,494 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) [2023-08-30 03:17:30,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:30,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:30,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:17:30,495 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)] === [2023-08-30 03:17:30,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1766488355, now seen corresponding path program 1 times [2023-08-30 03:17:30,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:30,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157447908] [2023-08-30 03:17:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:30,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:30,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:30,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157447908] [2023-08-30 03:17:30,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157447908] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:30,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:30,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:17:30,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619580084] [2023-08-30 03:17:30,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:30,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:17:30,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:30,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:17:30,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:17:30,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-30 03:17:30,635 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) [2023-08-30 03:17:30,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:30,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-30 03:17:30,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:30,740 INFO L130 PetriNetUnfolder]: 181/373 cut-off events. [2023-08-30 03:17:30,740 INFO L131 PetriNetUnfolder]: For 1535/1738 co-relation queries the response was YES. [2023-08-30 03:17:30,742 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. [2023-08-30 03:17:30,743 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 39 selfloop transitions, 17 changer transitions 19/81 dead transitions. [2023-08-30 03:17:30,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 750 flow [2023-08-30 03:17:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 03:17:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 03:17:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 791 transitions. [2023-08-30 03:17:30,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46502057613168724 [2023-08-30 03:17:30,746 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 791 transitions. [2023-08-30 03:17:30,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 791 transitions. [2023-08-30 03:17:30,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:30,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 791 transitions. [2023-08-30 03:17:30,748 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) [2023-08-30 03:17:30,750 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) [2023-08-30 03:17:30,751 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) [2023-08-30 03:17:30,751 INFO L175 Difference]: Start difference. First operand has 52 places, 38 transitions, 304 flow. Second operand 9 states and 791 transitions. [2023-08-30 03:17:30,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 750 flow [2023-08-30 03:17:30,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 81 transitions, 720 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-30 03:17:30,760 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 330 flow [2023-08-30 03:17:30,760 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} [2023-08-30 03:17:30,761 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2023-08-30 03:17:30,762 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 330 flow [2023-08-30 03:17:30,762 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) [2023-08-30 03:17:30,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:30,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:30,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:17:30,763 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)] === [2023-08-30 03:17:30,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:30,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1856354286, now seen corresponding path program 1 times [2023-08-30 03:17:30,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:30,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027028906] [2023-08-30 03:17:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:30,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027028906] [2023-08-30 03:17:30,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027028906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:30,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397232349] [2023-08-30 03:17:30,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:30,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:30,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:30,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:30,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:30,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 189 [2023-08-30 03:17:30,918 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) [2023-08-30 03:17:30,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:30,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 189 [2023-08-30 03:17:30,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:31,019 INFO L130 PetriNetUnfolder]: 277/538 cut-off events. [2023-08-30 03:17:31,019 INFO L131 PetriNetUnfolder]: For 2176/2176 co-relation queries the response was YES. [2023-08-30 03:17:31,021 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. [2023-08-30 03:17:31,022 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 29 selfloop transitions, 10 changer transitions 45/84 dead transitions. [2023-08-30 03:17:31,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 84 transitions, 837 flow [2023-08-30 03:17:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 433 transitions. [2023-08-30 03:17:31,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582010582010582 [2023-08-30 03:17:31,024 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 433 transitions. [2023-08-30 03:17:31,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 433 transitions. [2023-08-30 03:17:31,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:31,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 433 transitions. [2023-08-30 03:17:31,026 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) [2023-08-30 03:17:31,027 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) [2023-08-30 03:17:31,028 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) [2023-08-30 03:17:31,028 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 330 flow. Second operand 5 states and 433 transitions. [2023-08-30 03:17:31,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 84 transitions, 837 flow [2023-08-30 03:17:31,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 706 flow, removed 28 selfloop flow, removed 8 redundant places. [2023-08-30 03:17:31,038 INFO L231 Difference]: Finished difference. Result has 58 places, 30 transitions, 241 flow [2023-08-30 03:17:31,038 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} [2023-08-30 03:17:31,039 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 25 predicate places. [2023-08-30 03:17:31,039 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 30 transitions, 241 flow [2023-08-30 03:17:31,039 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) [2023-08-30 03:17:31,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:31,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:31,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:17:31,040 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)] === [2023-08-30 03:17:31,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash 190113550, now seen corresponding path program 2 times [2023-08-30 03:17:31,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:31,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919508996] [2023-08-30 03:17:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:31,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919508996] [2023-08-30 03:17:31,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919508996] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:31,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:31,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:31,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059991034] [2023-08-30 03:17:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:31,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:31,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-30 03:17:31,171 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) [2023-08-30 03:17:31,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:31,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-30 03:17:31,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:31,221 INFO L130 PetriNetUnfolder]: 47/121 cut-off events. [2023-08-30 03:17:31,221 INFO L131 PetriNetUnfolder]: For 450/452 co-relation queries the response was YES. [2023-08-30 03:17:31,221 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. [2023-08-30 03:17:31,222 INFO L137 encePairwiseOnDemand]: 185/189 looper letters, 25 selfloop transitions, 4 changer transitions 21/53 dead transitions. [2023-08-30 03:17:31,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 468 flow [2023-08-30 03:17:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:31,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 440 transitions. [2023-08-30 03:17:31,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2023-08-30 03:17:31,224 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 440 transitions. [2023-08-30 03:17:31,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 440 transitions. [2023-08-30 03:17:31,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:31,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 440 transitions. [2023-08-30 03:17:31,226 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) [2023-08-30 03:17:31,227 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) [2023-08-30 03:17:31,227 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) [2023-08-30 03:17:31,227 INFO L175 Difference]: Start difference. First operand has 58 places, 30 transitions, 241 flow. Second operand 5 states and 440 transitions. [2023-08-30 03:17:31,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 468 flow [2023-08-30 03:17:31,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 420 flow, removed 8 selfloop flow, removed 10 redundant places. [2023-08-30 03:17:31,231 INFO L231 Difference]: Finished difference. Result has 48 places, 28 transitions, 186 flow [2023-08-30 03:17:31,231 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} [2023-08-30 03:17:31,231 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2023-08-30 03:17:31,232 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 28 transitions, 186 flow [2023-08-30 03:17:31,232 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) [2023-08-30 03:17:31,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:31,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:31,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:17:31,233 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)] === [2023-08-30 03:17:31,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash 723992946, now seen corresponding path program 3 times [2023-08-30 03:17:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:31,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961357110] [2023-08-30 03:17:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:31,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961357110] [2023-08-30 03:17:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961357110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:17:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049387474] [2023-08-30 03:17:31,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:31,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:31,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:31,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:31,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2023-08-30 03:17:31,345 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) [2023-08-30 03:17:31,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:31,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2023-08-30 03:17:31,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:31,369 INFO L130 PetriNetUnfolder]: 29/77 cut-off events. [2023-08-30 03:17:31,370 INFO L131 PetriNetUnfolder]: For 253/255 co-relation queries the response was YES. [2023-08-30 03:17:31,370 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. [2023-08-30 03:17:31,370 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2023-08-30 03:17:31,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 28 transitions, 236 flow [2023-08-30 03:17:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:17:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:17:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-30 03:17:31,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455026455026455 [2023-08-30 03:17:31,385 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-30 03:17:31,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-30 03:17:31,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:31,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-30 03:17:31,386 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) [2023-08-30 03:17:31,387 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) [2023-08-30 03:17:31,388 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) [2023-08-30 03:17:31,388 INFO L175 Difference]: Start difference. First operand has 48 places, 28 transitions, 186 flow. Second operand 4 states and 344 transitions. [2023-08-30 03:17:31,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 28 transitions, 236 flow [2023-08-30 03:17:31,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 28 transitions, 199 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-30 03:17:31,390 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-30 03:17:31,390 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} [2023-08-30 03:17:31,390 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-30 03:17:31,390 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-30 03:17:31,391 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) [2023-08-30 03:17:31,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:17:31,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:17:31,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:17:31,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:17:31,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:17:31,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:17:31,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:17:31,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:17:31,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:17:31,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:17:31,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:17:31,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:17:31,396 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:31,398 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:17:31,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:17:31,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:17:31 BasicIcfg [2023-08-30 03:17:31,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:17:31,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:17:31,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:17:31,401 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:17:31,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:17:25" (3/4) ... [2023-08-30 03:17:31,403 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:17:31,408 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:17:31,408 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:17:31,409 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:17:31,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:17:31,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:17:31,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:17:31,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:17:31,436 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:17:31,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:17:31,437 INFO L158 Benchmark]: Toolchain (without parser) took 7304.12ms. Allocated memory was 77.6MB in the beginning and 174.1MB in the end (delta: 96.5MB). Free memory was 53.5MB in the beginning and 142.7MB in the end (delta: -89.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,437 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:17:31,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.15ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 51.7MB in the end (delta: 1.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.21ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 49.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,438 INFO L158 Benchmark]: Boogie Preprocessor took 35.26ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 48.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,438 INFO L158 Benchmark]: RCFGBuilder took 411.59ms. Allocated memory is still 77.6MB. Free memory was 47.8MB in the beginning and 33.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,438 INFO L158 Benchmark]: TraceAbstraction took 6334.79ms. Allocated memory was 77.6MB in the beginning and 174.1MB in the end (delta: 96.5MB). Free memory was 33.1MB in the beginning and 145.9MB in the end (delta: -112.8MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,439 INFO L158 Benchmark]: Witness Printer took 35.66ms. Allocated memory is still 174.1MB. Free memory was 145.9MB in the beginning and 142.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:17:31,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.15ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 51.7MB in the end (delta: 1.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.21ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 49.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.26ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 48.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.59ms. Allocated memory is still 77.6MB. Free memory was 47.8MB in the beginning and 33.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6334.79ms. Allocated memory was 77.6MB in the beginning and 174.1MB in the end (delta: 96.5MB). Free memory was 33.1MB in the beginning and 145.9MB in the end (delta: -112.8MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. * Witness Printer took 35.66ms. Allocated memory is still 174.1MB. Free memory was 145.9MB in the beginning and 142.7MB 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: 2.7s, 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: 6.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.5s 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, 0.2s SatisfiabilityAnalysisTime, 1.5s 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! [2023-08-30 03:17:31,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE