./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_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 b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 23:41:45,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 23:41:45,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 23:41:45,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 23:41:45,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 23:41:45,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 23:41:45,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 23:41:45,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 23:41:45,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 23:41:45,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 23:41:45,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 23:41:45,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 23:41:45,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 23:41:45,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 23:41:45,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 23:41:45,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 23:41:45,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 23:41:45,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 23:41:45,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 23:41:45,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 23:41:45,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 23:41:45,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 23:41:45,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 23:41:45,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 23:41:45,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 23:41:45,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 23:41:45,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 23:41:45,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 23:41:45,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 23:41:45,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 23:41:45,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 23:41:45,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 23:41:45,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 23:41:45,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 23:41:45,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 23:41:45,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 23:41:45,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 23:41:45,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 23:41:45,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 23:41:45,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 23:41:45,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 23:41:45,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-31 23:41:45,635 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 23:41:45,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 23:41:45,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 23:41:45,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 23:41:45,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 23:41:45,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 23:41:45,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 23:41:45,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 23:41:45,638 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 23:41:45,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 23:41:45,639 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 23:41:45,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 23:41:45,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 23:41:45,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 23:41:45,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 23:41:45,639 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-31 23:41:45,640 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-31 23:41:45,640 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-31 23:41:45,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 23:41:45,640 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-31 23:41:45,640 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 23:41:45,640 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 23:41:45,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 23:41:45,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 23:41:45,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 23:41:45,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:41:45,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 23:41:45,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 23:41:45,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 23:41:45,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 23:41:45,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 23:41:45,642 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 23:41:45,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 23:41:45,642 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 23:41:45,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 23:41:45,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 23:41:45,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 23:41:45,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 23:41:45,868 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 23:41:45,868 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 23:41:45,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-08-31 23:41:46,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 23:41:47,035 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 23:41:47,035 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-08-31 23:41:47,042 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b39ae1c/e98af7424e6f49dcb77da9f42aad3241/FLAG66716c789 [2023-08-31 23:41:47,054 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b39ae1c/e98af7424e6f49dcb77da9f42aad3241 [2023-08-31 23:41:47,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 23:41:47,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 23:41:47,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 23:41:47,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 23:41:47,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 23:41:47,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfded02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47, skipping insertion in model container [2023-08-31 23:41:47,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 23:41:47,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 23:41:47,193 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/safe023_tso.i[945,958] [2023-08-31 23:41:47,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:41:47,318 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 23:41:47,331 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/safe023_tso.i[945,958] [2023-08-31 23:41:47,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:41:47,393 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:41:47,394 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:41:47,399 INFO L208 MainTranslator]: Completed translation [2023-08-31 23:41:47,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47 WrapperNode [2023-08-31 23:41:47,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 23:41:47,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 23:41:47,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 23:41:47,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 23:41:47,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,446 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-31 23:41:47,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 23:41:47,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 23:41:47,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 23:41:47,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 23:41:47,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 23:41:47,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 23:41:47,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 23:41:47,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 23:41:47,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (1/1) ... [2023-08-31 23:41:47,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:41:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 23:41:47,555 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) [2023-08-31 23:41:47,559 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 [2023-08-31 23:41:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 23:41:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 23:41:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 23:41:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 23:41:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 23:41:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-31 23:41:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-31 23:41:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-31 23:41:47,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-31 23:41:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-31 23:41:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-31 23:41:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 23:41:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 23:41:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 23:41:47,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 23:41:47,579 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 23:41:47,692 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 23:41:47,696 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 23:41:47,838 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 23:41:47,842 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 23:41:47,842 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 23:41:47,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:41:47 BoogieIcfgContainer [2023-08-31 23:41:47,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 23:41:47,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 23:41:47,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 23:41:47,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 23:41:47,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:41:47" (1/3) ... [2023-08-31 23:41:47,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd084ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:41:47, skipping insertion in model container [2023-08-31 23:41:47,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:47" (2/3) ... [2023-08-31 23:41:47,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd084ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:41:47, skipping insertion in model container [2023-08-31 23:41:47,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:41:47" (3/3) ... [2023-08-31 23:41:47,849 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2023-08-31 23:41:47,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 23:41:47,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-31 23:41:47,859 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 23:41:47,903 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 23:41:47,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2023-08-31 23:41:47,963 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-31 23:41:47,963 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:47,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-31 23:41:47,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2023-08-31 23:41:47,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2023-08-31 23:41:47,976 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 23:41:47,987 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-31 23:41:47,992 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-31 23:41:47,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 185 flow [2023-08-31 23:41:48,022 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-08-31 23:41:48,023 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:48,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-31 23:41:48,025 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-31 23:41:50,109 INFO L134 LiptonReduction]: Checked pairs total: 3363 [2023-08-31 23:41:50,109 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-31 23:41:50,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 23:41:50,122 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;@6d0dca6a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 23:41:50,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-31 23:41:50,123 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 23:41:50,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:50,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:50,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 23:41:50,124 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)] === [2023-08-31 23:41:50,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:50,127 INFO L85 PathProgramCache]: Analyzing trace with hash 334, now seen corresponding path program 1 times [2023-08-31 23:41:50,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:50,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127203988] [2023-08-31 23:41:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:50,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:50,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127203988] [2023-08-31 23:41:50,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127203988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:50,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:50,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 23:41:50,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735655669] [2023-08-31 23:41:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:50,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 23:41:50,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:50,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 23:41:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 23:41:50,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 181 [2023-08-31 23:41:50,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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) [2023-08-31 23:41:50,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:50,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 181 [2023-08-31 23:41:50,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:50,316 INFO L130 PetriNetUnfolder]: 272/454 cut-off events. [2023-08-31 23:41:50,316 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:50,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 454 events. 272/454 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1963 event pairs, 272 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 906. Up to 433 conditions per place. [2023-08-31 23:41:50,321 INFO L137 encePairwiseOnDemand]: 174/181 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-31 23:41:50,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-31 23:41:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 23:41:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 23:41:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 201 transitions. [2023-08-31 23:41:50,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5552486187845304 [2023-08-31 23:41:50,332 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 201 transitions. [2023-08-31 23:41:50,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 201 transitions. [2023-08-31 23:41:50,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:50,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 201 transitions. [2023-08-31 23:41:50,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2023-08-31 23:41:50,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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) [2023-08-31 23:41:50,342 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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) [2023-08-31 23:41:50,343 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 201 transitions. [2023-08-31 23:41:50,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-31 23:41:50,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 23:41:50,346 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-31 23:41:50,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-31 23:41:50,350 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-31 23:41:50,350 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-31 23:41:50,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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) [2023-08-31 23:41:50,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:50,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:50,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 23:41:50,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:41:50,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:50,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1998126697, now seen corresponding path program 1 times [2023-08-31 23:41:50,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:50,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307675708] [2023-08-31 23:41:50,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:50,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:50,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:50,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:50,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307675708] [2023-08-31 23:41:50,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307675708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:50,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:50,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:41:50,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206434898] [2023-08-31 23:41:50,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:50,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:41:50,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:50,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:41:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:41:50,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 181 [2023-08-31 23:41:50,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2023-08-31 23:41:50,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:50,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 181 [2023-08-31 23:41:50,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:51,015 INFO L130 PetriNetUnfolder]: 459/758 cut-off events. [2023-08-31 23:41:51,015 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:51,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 758 events. 459/758 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3654 event pairs, 156 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 1536. Up to 275 conditions per place. [2023-08-31 23:41:51,019 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 37 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2023-08-31 23:41:51,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 45 transitions, 188 flow [2023-08-31 23:41:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 23:41:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 23:41:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2023-08-31 23:41:51,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45027624309392267 [2023-08-31 23:41:51,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 489 transitions. [2023-08-31 23:41:51,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 489 transitions. [2023-08-31 23:41:51,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:51,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 489 transitions. [2023-08-31 23:41:51,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-08-31 23:41:51,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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) [2023-08-31 23:41:51,026 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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) [2023-08-31 23:41:51,026 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 489 transitions. [2023-08-31 23:41:51,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 45 transitions, 188 flow [2023-08-31 23:41:51,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 23:41:51,027 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 81 flow [2023-08-31 23:41:51,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-31 23:41:51,028 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-31 23:41:51,028 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 81 flow [2023-08-31 23:41:51,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2023-08-31 23:41:51,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:51,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:51,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 23:41:51,029 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:41:51,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1998126667, now seen corresponding path program 1 times [2023-08-31 23:41:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069196174] [2023-08-31 23:41:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:51,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:51,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069196174] [2023-08-31 23:41:51,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069196174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:51,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:51,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 23:41:51,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333949614] [2023-08-31 23:41:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:51,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 23:41:51,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:51,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 23:41:51,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 23:41:51,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 181 [2023-08-31 23:41:51,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2023-08-31 23:41:51,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:51,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 181 [2023-08-31 23:41:51,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:51,384 INFO L130 PetriNetUnfolder]: 1054/1764 cut-off events. [2023-08-31 23:41:51,384 INFO L131 PetriNetUnfolder]: For 451/451 co-relation queries the response was YES. [2023-08-31 23:41:51,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3933 conditions, 1764 events. 1054/1764 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 10296 event pairs, 287 based on Foata normal form. 115/1879 useless extension candidates. Maximal degree in co-relation 3925. Up to 663 conditions per place. [2023-08-31 23:41:51,392 INFO L137 encePairwiseOnDemand]: 172/181 looper letters, 38 selfloop transitions, 13 changer transitions 5/57 dead transitions. [2023-08-31 23:41:51,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 296 flow [2023-08-31 23:41:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:41:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:41:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 447 transitions. [2023-08-31 23:41:51,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49392265193370166 [2023-08-31 23:41:51,394 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 447 transitions. [2023-08-31 23:41:51,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 447 transitions. [2023-08-31 23:41:51,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:51,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 447 transitions. [2023-08-31 23:41:51,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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) [2023-08-31 23:41:51,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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) [2023-08-31 23:41:51,397 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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) [2023-08-31 23:41:51,397 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 81 flow. Second operand 5 states and 447 transitions. [2023-08-31 23:41:51,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 296 flow [2023-08-31 23:41:51,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 23:41:51,400 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 198 flow [2023-08-31 23:41:51,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-08-31 23:41:51,401 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-31 23:41:51,403 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 198 flow [2023-08-31 23:41:51,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2023-08-31 23:41:51,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:51,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:51,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 23:41:51,404 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)] === [2023-08-31 23:41:51,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1812388649, now seen corresponding path program 1 times [2023-08-31 23:41:51,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:51,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676593729] [2023-08-31 23:41:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:51,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:51,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676593729] [2023-08-31 23:41:51,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676593729] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:51,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:51,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:41:51,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622033074] [2023-08-31 23:41:51,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:51,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:41:51,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:41:51,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:41:51,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 181 [2023-08-31 23:41:51,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 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) [2023-08-31 23:41:51,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:51,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 181 [2023-08-31 23:41:51,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:51,689 INFO L130 PetriNetUnfolder]: 941/1624 cut-off events. [2023-08-31 23:41:51,689 INFO L131 PetriNetUnfolder]: For 2109/2109 co-relation queries the response was YES. [2023-08-31 23:41:51,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5044 conditions, 1624 events. 941/1624 cut-off events. For 2109/2109 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 9672 event pairs, 207 based on Foata normal form. 69/1690 useless extension candidates. Maximal degree in co-relation 5033. Up to 423 conditions per place. [2023-08-31 23:41:51,696 INFO L137 encePairwiseOnDemand]: 173/181 looper letters, 44 selfloop transitions, 15 changer transitions 23/83 dead transitions. [2023-08-31 23:41:51,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 586 flow [2023-08-31 23:41:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:41:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:41:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 618 transitions. [2023-08-31 23:41:51,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4877663772691397 [2023-08-31 23:41:51,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 618 transitions. [2023-08-31 23:41:51,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 618 transitions. [2023-08-31 23:41:51,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:51,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 618 transitions. [2023-08-31 23:41:51,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 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) [2023-08-31 23:41:51,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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) [2023-08-31 23:41:51,701 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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) [2023-08-31 23:41:51,702 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 198 flow. Second operand 7 states and 618 transitions. [2023-08-31 23:41:51,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 586 flow [2023-08-31 23:41:51,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 83 transitions, 586 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 23:41:51,706 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 296 flow [2023-08-31 23:41:51,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=296, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2023-08-31 23:41:51,706 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2023-08-31 23:41:51,706 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 296 flow [2023-08-31 23:41:51,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 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) [2023-08-31 23:41:51,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:51,707 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:51,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 23:41:51,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:41:51,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:51,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1893690784, now seen corresponding path program 1 times [2023-08-31 23:41:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:51,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254820986] [2023-08-31 23:41:51,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:51,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:51,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254820986] [2023-08-31 23:41:51,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254820986] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:51,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:51,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:41:51,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415998630] [2023-08-31 23:41:51,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:51,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:41:51,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:51,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:41:51,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:41:52,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 181 [2023-08-31 23:41:52,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 296 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2023-08-31 23:41:52,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:52,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 181 [2023-08-31 23:41:52,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:52,139 INFO L130 PetriNetUnfolder]: 600/1096 cut-off events. [2023-08-31 23:41:52,139 INFO L131 PetriNetUnfolder]: For 3280/3309 co-relation queries the response was YES. [2023-08-31 23:41:52,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3800 conditions, 1096 events. 600/1096 cut-off events. For 3280/3309 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 6366 event pairs, 190 based on Foata normal form. 83/1174 useless extension candidates. Maximal degree in co-relation 3783. Up to 703 conditions per place. [2023-08-31 23:41:52,145 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 31 selfloop transitions, 8 changer transitions 6/54 dead transitions. [2023-08-31 23:41:52,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 466 flow [2023-08-31 23:41:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 23:41:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 23:41:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2023-08-31 23:41:52,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43646408839779005 [2023-08-31 23:41:52,147 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 474 transitions. [2023-08-31 23:41:52,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 474 transitions. [2023-08-31 23:41:52,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:52,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 474 transitions. [2023-08-31 23:41:52,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2023-08-31 23:41:52,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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) [2023-08-31 23:41:52,150 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 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) [2023-08-31 23:41:52,150 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 296 flow. Second operand 6 states and 474 transitions. [2023-08-31 23:41:52,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 466 flow [2023-08-31 23:41:52,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 431 flow, removed 7 selfloop flow, removed 6 redundant places. [2023-08-31 23:41:52,156 INFO L231 Difference]: Finished difference. Result has 52 places, 31 transitions, 217 flow [2023-08-31 23:41:52,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=217, PETRI_PLACES=52, PETRI_TRANSITIONS=31} [2023-08-31 23:41:52,156 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 17 predicate places. [2023-08-31 23:41:52,156 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 31 transitions, 217 flow [2023-08-31 23:41:52,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2023-08-31 23:41:52,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:52,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:52,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 23:41:52,157 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)] === [2023-08-31 23:41:52,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:52,158 INFO L85 PathProgramCache]: Analyzing trace with hash -505771038, now seen corresponding path program 1 times [2023-08-31 23:41:52,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:52,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514761580] [2023-08-31 23:41:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:52,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514761580] [2023-08-31 23:41:52,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514761580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:52,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:52,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:41:52,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946231795] [2023-08-31 23:41:52,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:52,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:41:52,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:52,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:41:52,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:41:52,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 181 [2023-08-31 23:41:52,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 31 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2023-08-31 23:41:52,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:52,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 181 [2023-08-31 23:41:52,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:52,399 INFO L130 PetriNetUnfolder]: 603/1056 cut-off events. [2023-08-31 23:41:52,399 INFO L131 PetriNetUnfolder]: For 2301/2301 co-relation queries the response was YES. [2023-08-31 23:41:52,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3657 conditions, 1056 events. 603/1056 cut-off events. For 2301/2301 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 5714 event pairs, 130 based on Foata normal form. 32/1085 useless extension candidates. Maximal degree in co-relation 3642. Up to 377 conditions per place. [2023-08-31 23:41:52,404 INFO L137 encePairwiseOnDemand]: 173/181 looper letters, 34 selfloop transitions, 9 changer transitions 11/55 dead transitions. [2023-08-31 23:41:52,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 437 flow [2023-08-31 23:41:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:41:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:41:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2023-08-31 23:41:52,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47198105761641673 [2023-08-31 23:41:52,406 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 598 transitions. [2023-08-31 23:41:52,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 598 transitions. [2023-08-31 23:41:52,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:52,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 598 transitions. [2023-08-31 23:41:52,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.42857142857143) internal successors, (598), 7 states have internal predecessors, (598), 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) [2023-08-31 23:41:52,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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) [2023-08-31 23:41:52,409 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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) [2023-08-31 23:41:52,409 INFO L175 Difference]: Start difference. First operand has 52 places, 31 transitions, 217 flow. Second operand 7 states and 598 transitions. [2023-08-31 23:41:52,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 437 flow [2023-08-31 23:41:52,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 392 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-31 23:41:52,415 INFO L231 Difference]: Finished difference. Result has 56 places, 34 transitions, 262 flow [2023-08-31 23:41:52,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=262, PETRI_PLACES=56, PETRI_TRANSITIONS=34} [2023-08-31 23:41:52,416 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2023-08-31 23:41:52,416 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 34 transitions, 262 flow [2023-08-31 23:41:52,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2023-08-31 23:41:52,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:52,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:52,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 23:41:52,417 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)] === [2023-08-31 23:41:52,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:52,417 INFO L85 PathProgramCache]: Analyzing trace with hash -804839401, now seen corresponding path program 1 times [2023-08-31 23:41:52,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:52,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697180143] [2023-08-31 23:41:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:52,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:52,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:52,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697180143] [2023-08-31 23:41:52,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697180143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:52,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:52,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:41:52,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607665304] [2023-08-31 23:41:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:52,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:41:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:52,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:41:52,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:41:52,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-31 23:41:52,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 34 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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) [2023-08-31 23:41:52,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:52,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-31 23:41:52,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:52,694 INFO L130 PetriNetUnfolder]: 905/1512 cut-off events. [2023-08-31 23:41:52,694 INFO L131 PetriNetUnfolder]: For 4833/4833 co-relation queries the response was YES. [2023-08-31 23:41:52,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5518 conditions, 1512 events. 905/1512 cut-off events. For 4833/4833 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7605 event pairs, 124 based on Foata normal form. 84/1596 useless extension candidates. Maximal degree in co-relation 5500. Up to 470 conditions per place. [2023-08-31 23:41:52,701 INFO L137 encePairwiseOnDemand]: 172/181 looper letters, 50 selfloop transitions, 16 changer transitions 34/100 dead transitions. [2023-08-31 23:41:52,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 100 transitions, 911 flow [2023-08-31 23:41:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 23:41:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 23:41:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 767 transitions. [2023-08-31 23:41:52,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470841006752609 [2023-08-31 23:41:52,703 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 767 transitions. [2023-08-31 23:41:52,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 767 transitions. [2023-08-31 23:41:52,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:52,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 767 transitions. [2023-08-31 23:41:52,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 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) [2023-08-31 23:41:52,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 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) [2023-08-31 23:41:52,707 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 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) [2023-08-31 23:41:52,707 INFO L175 Difference]: Start difference. First operand has 56 places, 34 transitions, 262 flow. Second operand 9 states and 767 transitions. [2023-08-31 23:41:52,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 100 transitions, 911 flow [2023-08-31 23:41:52,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 100 transitions, 862 flow, removed 21 selfloop flow, removed 6 redundant places. [2023-08-31 23:41:52,715 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 410 flow [2023-08-31 23:41:52,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=410, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2023-08-31 23:41:52,716 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2023-08-31 23:41:52,716 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 410 flow [2023-08-31 23:41:52,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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) [2023-08-31 23:41:52,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:52,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:52,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 23:41:52,717 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)] === [2023-08-31 23:41:52,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash 819786461, now seen corresponding path program 1 times [2023-08-31 23:41:52,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:52,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893167312] [2023-08-31 23:41:52,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:52,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:52,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:52,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893167312] [2023-08-31 23:41:52,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893167312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:52,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:52,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:41:52,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748400254] [2023-08-31 23:41:52,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:52,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:41:52,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:52,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:41:52,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:41:52,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-31 23:41:52,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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) [2023-08-31 23:41:52,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:52,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-31 23:41:52,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:52,963 INFO L130 PetriNetUnfolder]: 727/1270 cut-off events. [2023-08-31 23:41:52,963 INFO L131 PetriNetUnfolder]: For 5418/5418 co-relation queries the response was YES. [2023-08-31 23:41:52,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5112 conditions, 1270 events. 727/1270 cut-off events. For 5418/5418 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6497 event pairs, 160 based on Foata normal form. 60/1330 useless extension candidates. Maximal degree in co-relation 5091. Up to 504 conditions per place. [2023-08-31 23:41:52,969 INFO L137 encePairwiseOnDemand]: 175/181 looper letters, 38 selfloop transitions, 6 changer transitions 28/72 dead transitions. [2023-08-31 23:41:52,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 751 flow [2023-08-31 23:41:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:41:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:41:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 587 transitions. [2023-08-31 23:41:52,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4632991318074191 [2023-08-31 23:41:52,971 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 587 transitions. [2023-08-31 23:41:52,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 587 transitions. [2023-08-31 23:41:52,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:52,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 587 transitions. [2023-08-31 23:41:52,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 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) [2023-08-31 23:41:52,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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) [2023-08-31 23:41:52,974 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 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) [2023-08-31 23:41:52,974 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 410 flow. Second operand 7 states and 587 transitions. [2023-08-31 23:41:52,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 751 flow [2023-08-31 23:41:52,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 72 transitions, 731 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-31 23:41:52,984 INFO L231 Difference]: Finished difference. Result has 64 places, 31 transitions, 292 flow [2023-08-31 23:41:52,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=292, PETRI_PLACES=64, PETRI_TRANSITIONS=31} [2023-08-31 23:41:52,984 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 29 predicate places. [2023-08-31 23:41:52,984 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 31 transitions, 292 flow [2023-08-31 23:41:52,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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) [2023-08-31 23:41:52,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:52,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:52,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 23:41:52,985 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)] === [2023-08-31 23:41:52,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:52,986 INFO L85 PathProgramCache]: Analyzing trace with hash -696328971, now seen corresponding path program 1 times [2023-08-31 23:41:52,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:52,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367996389] [2023-08-31 23:41:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:52,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:53,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:53,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367996389] [2023-08-31 23:41:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367996389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:53,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 23:41:53,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505434643] [2023-08-31 23:41:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:53,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 23:41:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 23:41:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 23:41:53,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 181 [2023-08-31 23:41:53,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 31 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-31 23:41:53,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:53,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 181 [2023-08-31 23:41:53,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:53,111 INFO L130 PetriNetUnfolder]: 166/348 cut-off events. [2023-08-31 23:41:53,111 INFO L131 PetriNetUnfolder]: For 1592/1604 co-relation queries the response was YES. [2023-08-31 23:41:53,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 348 events. 166/348 cut-off events. For 1592/1604 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1583 event pairs, 45 based on Foata normal form. 17/353 useless extension candidates. Maximal degree in co-relation 1455. Up to 262 conditions per place. [2023-08-31 23:41:53,113 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 29 selfloop transitions, 3 changer transitions 1/43 dead transitions. [2023-08-31 23:41:53,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 43 transitions, 444 flow [2023-08-31 23:41:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 23:41:53,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 23:41:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-31 23:41:53,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5174953959484346 [2023-08-31 23:41:53,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-31 23:41:53,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-31 23:41:53,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:53,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-31 23:41:53,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2023-08-31 23:41:53,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-08-31 23:41:53,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 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) [2023-08-31 23:41:53,117 INFO L175 Difference]: Start difference. First operand has 64 places, 31 transitions, 292 flow. Second operand 3 states and 281 transitions. [2023-08-31 23:41:53,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 43 transitions, 444 flow [2023-08-31 23:41:53,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 341 flow, removed 13 selfloop flow, removed 14 redundant places. [2023-08-31 23:41:53,119 INFO L231 Difference]: Finished difference. Result has 51 places, 33 transitions, 231 flow [2023-08-31 23:41:53,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=51, PETRI_TRANSITIONS=33} [2023-08-31 23:41:53,120 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2023-08-31 23:41:53,120 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 33 transitions, 231 flow [2023-08-31 23:41:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-31 23:41:53,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:53,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:53,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 23:41:53,121 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)] === [2023-08-31 23:41:53,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash 811045275, now seen corresponding path program 1 times [2023-08-31 23:41:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743611221] [2023-08-31 23:41:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:53,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:53,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743611221] [2023-08-31 23:41:53,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743611221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:53,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:53,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:41:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678148919] [2023-08-31 23:41:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:53,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 23:41:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 23:41:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-31 23:41:53,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 181 [2023-08-31 23:41:53,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 33 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2023-08-31 23:41:53,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:53,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 181 [2023-08-31 23:41:53,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:53,255 INFO L130 PetriNetUnfolder]: 109/247 cut-off events. [2023-08-31 23:41:53,255 INFO L131 PetriNetUnfolder]: For 474/503 co-relation queries the response was YES. [2023-08-31 23:41:53,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 247 events. 109/247 cut-off events. For 474/503 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1081 event pairs, 19 based on Foata normal form. 32/267 useless extension candidates. Maximal degree in co-relation 1013. Up to 102 conditions per place. [2023-08-31 23:41:53,256 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 31 selfloop transitions, 5 changer transitions 3/49 dead transitions. [2023-08-31 23:41:53,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 409 flow [2023-08-31 23:41:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 23:41:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 23:41:53,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2023-08-31 23:41:53,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5124309392265194 [2023-08-31 23:41:53,258 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2023-08-31 23:41:53,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2023-08-31 23:41:53,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:53,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2023-08-31 23:41:53,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2023-08-31 23:41:53,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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) [2023-08-31 23:41:53,260 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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) [2023-08-31 23:41:53,260 INFO L175 Difference]: Start difference. First operand has 51 places, 33 transitions, 231 flow. Second operand 4 states and 371 transitions. [2023-08-31 23:41:53,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 409 flow [2023-08-31 23:41:53,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 396 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-31 23:41:53,262 INFO L231 Difference]: Finished difference. Result has 53 places, 33 transitions, 236 flow [2023-08-31 23:41:53,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=53, PETRI_TRANSITIONS=33} [2023-08-31 23:41:53,263 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2023-08-31 23:41:53,263 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 33 transitions, 236 flow [2023-08-31 23:41:53,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2023-08-31 23:41:53,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:41:53,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:53,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 23:41:53,263 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)] === [2023-08-31 23:41:53,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:41:53,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2049535687, now seen corresponding path program 1 times [2023-08-31 23:41:53,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:41:53,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359492238] [2023-08-31 23:41:53,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:41:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:41:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:41:53,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:41:53,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:41:53,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359492238] [2023-08-31 23:41:53,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359492238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:41:53,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:41:53,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:41:53,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424689869] [2023-08-31 23:41:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:41:53,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:41:53,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:41:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:41:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:41:53,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 181 [2023-08-31 23:41:53,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 33 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2023-08-31 23:41:53,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:41:53,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 181 [2023-08-31 23:41:53,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:41:53,396 INFO L130 PetriNetUnfolder]: 93/207 cut-off events. [2023-08-31 23:41:53,396 INFO L131 PetriNetUnfolder]: For 641/670 co-relation queries the response was YES. [2023-08-31 23:41:53,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 207 events. 93/207 cut-off events. For 641/670 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 925 event pairs, 15 based on Foata normal form. 20/217 useless extension candidates. Maximal degree in co-relation 912. Up to 88 conditions per place. [2023-08-31 23:41:53,397 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-31 23:41:53,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 384 flow [2023-08-31 23:41:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:41:53,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:41:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 451 transitions. [2023-08-31 23:41:53,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983425414364641 [2023-08-31 23:41:53,399 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 451 transitions. [2023-08-31 23:41:53,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 451 transitions. [2023-08-31 23:41:53,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:41:53,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 451 transitions. [2023-08-31 23:41:53,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 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) [2023-08-31 23:41:53,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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) [2023-08-31 23:41:53,401 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 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) [2023-08-31 23:41:53,402 INFO L175 Difference]: Start difference. First operand has 53 places, 33 transitions, 236 flow. Second operand 5 states and 451 transitions. [2023-08-31 23:41:53,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 384 flow [2023-08-31 23:41:53,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 44 transitions, 367 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-31 23:41:53,403 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2023-08-31 23:41:53,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2023-08-31 23:41:53,404 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 17 predicate places. [2023-08-31 23:41:53,404 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2023-08-31 23:41:53,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2023-08-31 23:41:53,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-31 23:41:53,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-31 23:41:53,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-31 23:41:53,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-31 23:41:53,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-31 23:41:53,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-31 23:41:53,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-31 23:41:53,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-31 23:41:53,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-31 23:41:53,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-31 23:41:53,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-31 23:41:53,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 23:41:53,408 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:41:53,410 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 23:41:53,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 23:41:53,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 11:41:53 BasicIcfg [2023-08-31 23:41:53,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 23:41:53,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 23:41:53,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 23:41:53,413 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 23:41:53,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:41:47" (3/4) ... [2023-08-31 23:41:53,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 23:41:53,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-31 23:41:53,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-31 23:41:53,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-31 23:41:53,422 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 23:41:53,422 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 23:41:53,422 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 23:41:53,422 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 23:41:53,447 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 23:41:53,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 23:41:53,447 INFO L158 Benchmark]: Toolchain (without parser) took 6390.93ms. Allocated memory was 94.4MB in the beginning and 178.3MB in the end (delta: 83.9MB). Free memory was 70.7MB in the beginning and 144.2MB in the end (delta: -73.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-08-31 23:41:53,447 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 23:41:53,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.41ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 50.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-31 23:41:53,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.82ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 23:41:53,448 INFO L158 Benchmark]: Boogie Preprocessor took 40.53ms. Allocated memory is still 94.4MB. Free memory was 48.3MB in the beginning and 46.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 23:41:53,448 INFO L158 Benchmark]: RCFGBuilder took 355.43ms. Allocated memory is still 94.4MB. Free memory was 46.9MB in the beginning and 60.0MB in the end (delta: -13.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-08-31 23:41:53,448 INFO L158 Benchmark]: TraceAbstraction took 5567.29ms. Allocated memory was 94.4MB in the beginning and 178.3MB in the end (delta: 83.9MB). Free memory was 58.9MB in the beginning and 147.3MB in the end (delta: -88.4MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. [2023-08-31 23:41:53,449 INFO L158 Benchmark]: Witness Printer took 34.04ms. Allocated memory is still 178.3MB. Free memory was 147.3MB in the beginning and 144.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 23:41:53,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.41ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 50.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.82ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.53ms. Allocated memory is still 94.4MB. Free memory was 48.3MB in the beginning and 46.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.43ms. Allocated memory is still 94.4MB. Free memory was 46.9MB in the beginning and 60.0MB in the end (delta: -13.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5567.29ms. Allocated memory was 94.4MB in the beginning and 178.3MB in the end (delta: 83.9MB). Free memory was 58.9MB in the beginning and 147.3MB in the end (delta: -88.4MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. * Witness Printer took 34.04ms. Allocated memory is still 178.3MB. Free memory was 147.3MB in the beginning and 144.2MB 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: 2.1s, 96 PlacesBefore, 35 PlacesAfterwards, 88 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 86 TotalNumberOfCompositions, 3363 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2237, independent: 2139, independent conditional: 0, independent unconditional: 2139, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 852, independent: 834, independent conditional: 0, independent unconditional: 834, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2237, independent: 1305, independent conditional: 0, independent unconditional: 1305, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 852, unknown conditional: 0, unknown unconditional: 852] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: 778]: 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, 118 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 618 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 248 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 143 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1244 IncrementalHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 105 mSDtfsCounter, 1244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=7, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 943 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! [2023-08-31 23:41:53,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE