./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:17:37,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:17:37,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:17:37,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:17:37,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:17:37,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:17:37,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:17:37,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:17:37,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:17:37,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:17:37,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:17:37,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:17:37,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:17:37,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:17:37,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:17:37,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:17:37,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:17:37,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:17:37,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:17:37,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:17:37,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:17:37,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:17:37,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:17:37,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:17:37,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:17:37,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:17:37,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:17:37,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:17:37,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:17:37,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:17:37,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:17:37,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:17:37,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:17:37,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:17:37,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:17:37,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:17:37,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:17:37,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:17:37,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:17:37,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:17:37,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:17:37,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:17:37,358 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:17:37,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:17:37,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:17:37,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:17:37,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:17:37,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:17:37,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:17:37,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:17:37,362 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:17:37,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:17:37,363 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:17:37,364 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:17:37,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:17:37,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:17:37,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:17:37,365 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:17:37,365 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:17:37,365 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:17:37,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:17:37,365 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:17:37,366 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:17:37,366 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:17:37,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:17:37,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:17:37,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:17:37,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:17:37,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:17:37,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:17:37,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:17:37,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:17:37,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:17:37,368 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:17:37,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:17:37,369 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:17:37,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:17:37,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:17:37,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:17:37,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:17:37,761 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:17:37,761 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:17:37,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:17:38,841 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:17:39,117 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:17:39,117 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:17:39,131 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7152ac2b/1c33539bb3cc4e83a3ce5a540b7e3a89/FLAG96af6a936 [2023-08-30 03:17:39,144 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7152ac2b/1c33539bb3cc4e83a3ce5a540b7e3a89 [2023-08-30 03:17:39,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:17:39,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:17:39,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:17:39,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:17:39,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:17:39,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60691475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39, skipping insertion in model container [2023-08-30 03:17:39,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:17:39,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:17:39,371 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 03:17:39,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:17:39,562 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:17:39,580 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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-08-30 03:17:39,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:17:39,635 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:17:39,635 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:17:39,641 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:17:39,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39 WrapperNode [2023-08-30 03:17:39,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:17:39,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:17:39,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:17:39,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:17:39,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,698 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-08-30 03:17:39,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:17:39,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:17:39,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:17:39,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:17:39,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,717 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:17:39,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:17:39,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:17:39,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:17:39,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (1/1) ... [2023-08-30 03:17:39,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:17:39,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:17:39,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:17:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:17:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:17:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:17:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:17:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:17:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:17:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:17:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:17:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:17:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:17:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:17:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 03:17:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 03:17:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:17:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:17:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:17:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:17:39,787 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:17:39,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:17:39,974 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:17:39,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:17:40,188 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:17:40,194 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:17:40,201 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:17:40,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:17:40 BoogieIcfgContainer [2023-08-30 03:17:40,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:17:40,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:17:40,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:17:40,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:17:40,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:17:39" (1/3) ... [2023-08-30 03:17:40,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b67b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:17:40, skipping insertion in model container [2023-08-30 03:17:40,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:17:39" (2/3) ... [2023-08-30 03:17:40,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b67b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:17:40, skipping insertion in model container [2023-08-30 03:17:40,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:17:40" (3/3) ... [2023-08-30 03:17:40,211 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:17:40,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:17:40,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 03:17:40,225 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:17:40,323 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:17:40,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2023-08-30 03:17:40,441 INFO L130 PetriNetUnfolder]: 2/108 cut-off events. [2023-08-30 03:17:40,442 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:40,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 03:17:40,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2023-08-30 03:17:40,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 104 transitions, 220 flow [2023-08-30 03:17:40,456 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:17:40,470 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 104 transitions, 220 flow [2023-08-30 03:17:40,477 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 104 transitions, 220 flow [2023-08-30 03:17:40,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 104 transitions, 220 flow [2023-08-30 03:17:40,511 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2023-08-30 03:17:40,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:40,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-30 03:17:40,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 2250 [2023-08-30 03:17:43,618 INFO L134 LiptonReduction]: Checked pairs total: 4371 [2023-08-30 03:17:43,618 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-30 03:17:43,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:17:43,634 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;@3cc50e2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:17:43,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-30 03:17:43,636 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:17:43,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:43,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:43,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:17:43,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:43,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:43,641 INFO L85 PathProgramCache]: Analyzing trace with hash 395, now seen corresponding path program 1 times [2023-08-30 03:17:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:43,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487777424] [2023-08-30 03:17:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:43,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:43,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487777424] [2023-08-30 03:17:43,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487777424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:43,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:43,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:17:43,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300802809] [2023-08-30 03:17:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:43,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:17:43,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:43,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:17:43,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:17:43,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 222 [2023-08-30 03:17:43,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:43,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:43,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 222 [2023-08-30 03:17:43,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:43,986 INFO L130 PetriNetUnfolder]: 920/1333 cut-off events. [2023-08-30 03:17:43,987 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 03:17:43,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 1333 events. 920/1333 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5699 event pairs, 920 based on Foata normal form. 0/1242 useless extension candidates. Maximal degree in co-relation 2730. Up to 1324 conditions per place. [2023-08-30 03:17:44,001 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 19 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-08-30 03:17:44,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 92 flow [2023-08-30 03:17:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:17:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:17:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 238 transitions. [2023-08-30 03:17:44,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536036036036036 [2023-08-30 03:17:44,019 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 238 transitions. [2023-08-30 03:17:44,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 238 transitions. [2023-08-30 03:17:44,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:44,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 238 transitions. [2023-08-30 03:17:44,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,034 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,035 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 72 flow. Second operand 2 states and 238 transitions. [2023-08-30 03:17:44,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 92 flow [2023-08-30 03:17:44,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 03:17:44,041 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 50 flow [2023-08-30 03:17:44,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-08-30 03:17:44,048 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2023-08-30 03:17:44,048 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 50 flow [2023-08-30 03:17:44,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:44,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:44,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:17:44,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:44,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1231230159, now seen corresponding path program 1 times [2023-08-30 03:17:44,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:44,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812285486] [2023-08-30 03:17:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:44,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:44,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:44,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:44,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812285486] [2023-08-30 03:17:44,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812285486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:44,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:44,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:17:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990618616] [2023-08-30 03:17:44,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:44,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:17:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:44,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:17:44,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:17:44,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 222 [2023-08-30 03:17:44,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:44,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 222 [2023-08-30 03:17:44,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:44,906 INFO L130 PetriNetUnfolder]: 1950/2781 cut-off events. [2023-08-30 03:17:44,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:17:44,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5695 conditions, 2781 events. 1950/2781 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 12574 event pairs, 612 based on Foata normal form. 0/2646 useless extension candidates. Maximal degree in co-relation 5692. Up to 2317 conditions per place. [2023-08-30 03:17:44,921 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 33 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2023-08-30 03:17:44,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 170 flow [2023-08-30 03:17:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:17:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:17:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2023-08-30 03:17:44,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.496996996996997 [2023-08-30 03:17:44,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2023-08-30 03:17:44,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2023-08-30 03:17:44,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:44,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2023-08-30 03:17:44,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,928 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 50 flow. Second operand 3 states and 331 transitions. [2023-08-30 03:17:44,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 170 flow [2023-08-30 03:17:44,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:17:44,930 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 96 flow [2023-08-30 03:17:44,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-08-30 03:17:44,930 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-08-30 03:17:44,931 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 96 flow [2023-08-30 03:17:44,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:44,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:44,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:44,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:17:44,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:44,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1231230146, now seen corresponding path program 1 times [2023-08-30 03:17:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:44,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673807159] [2023-08-30 03:17:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:44,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:45,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:45,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673807159] [2023-08-30 03:17:45,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673807159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:45,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:45,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:17:45,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650745936] [2023-08-30 03:17:45,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:45,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:17:45,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:17:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:17:45,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 222 [2023-08-30 03:17:45,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:45,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:45,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 222 [2023-08-30 03:17:45,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:45,910 INFO L130 PetriNetUnfolder]: 1271/1948 cut-off events. [2023-08-30 03:17:45,910 INFO L131 PetriNetUnfolder]: For 796/796 co-relation queries the response was YES. [2023-08-30 03:17:45,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4731 conditions, 1948 events. 1271/1948 cut-off events. For 796/796 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 9410 event pairs, 285 based on Foata normal form. 45/1918 useless extension candidates. Maximal degree in co-relation 4726. Up to 1438 conditions per place. [2023-08-30 03:17:45,924 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 34 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-08-30 03:17:45,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 242 flow [2023-08-30 03:17:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:17:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:17:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 569 transitions. [2023-08-30 03:17:45,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4271771771771772 [2023-08-30 03:17:45,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 569 transitions. [2023-08-30 03:17:45,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 569 transitions. [2023-08-30 03:17:45,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:45,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 569 transitions. [2023-08-30 03:17:45,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:45,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:45,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:45,932 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 96 flow. Second operand 6 states and 569 transitions. [2023-08-30 03:17:45,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 242 flow [2023-08-30 03:17:45,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:17:45,943 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 119 flow [2023-08-30 03:17:45,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-08-30 03:17:45,944 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2023-08-30 03:17:45,944 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 119 flow [2023-08-30 03:17:45,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:45,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:45,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:45,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:17:45,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:45,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash 430305109, now seen corresponding path program 1 times [2023-08-30 03:17:45,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:45,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747400823] [2023-08-30 03:17:45,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:45,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:46,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:46,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747400823] [2023-08-30 03:17:46,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747400823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:46,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:46,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:17:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127019040] [2023-08-30 03:17:46,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:46,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:17:46,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:46,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:17:46,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:17:46,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 222 [2023-08-30 03:17:46,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 119 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:46,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:46,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 222 [2023-08-30 03:17:46,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:46,780 INFO L130 PetriNetUnfolder]: 1169/1768 cut-off events. [2023-08-30 03:17:46,780 INFO L131 PetriNetUnfolder]: For 732/738 co-relation queries the response was YES. [2023-08-30 03:17:46,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4554 conditions, 1768 events. 1169/1768 cut-off events. For 732/738 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8373 event pairs, 874 based on Foata normal form. 18/1573 useless extension candidates. Maximal degree in co-relation 4547. Up to 1376 conditions per place. [2023-08-30 03:17:46,794 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 35 selfloop transitions, 11 changer transitions 0/50 dead transitions. [2023-08-30 03:17:46,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 50 transitions, 280 flow [2023-08-30 03:17:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:17:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:17:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 571 transitions. [2023-08-30 03:17:46,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4286786786786787 [2023-08-30 03:17:46,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 571 transitions. [2023-08-30 03:17:46,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 571 transitions. [2023-08-30 03:17:46,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:46,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 571 transitions. [2023-08-30 03:17:46,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.16666666666667) internal successors, (571), 6 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:46,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:46,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:46,801 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 119 flow. Second operand 6 states and 571 transitions. [2023-08-30 03:17:46,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 50 transitions, 280 flow [2023-08-30 03:17:46,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 50 transitions, 268 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:17:46,803 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 191 flow [2023-08-30 03:17:46,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-30 03:17:46,804 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2023-08-30 03:17:46,804 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 191 flow [2023-08-30 03:17:46,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:46,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:46,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:46,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:17:46,805 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:46,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:46,805 INFO L85 PathProgramCache]: Analyzing trace with hash 901433360, now seen corresponding path program 1 times [2023-08-30 03:17:46,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:46,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979287003] [2023-08-30 03:17:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:46,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:47,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:47,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979287003] [2023-08-30 03:17:47,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979287003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:47,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:47,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:17:47,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098850704] [2023-08-30 03:17:47,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:47,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:17:47,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:47,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:17:47,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:17:47,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 222 [2023-08-30 03:17:47,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 191 flow. Second operand has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:47,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:47,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 222 [2023-08-30 03:17:47,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:47,782 INFO L130 PetriNetUnfolder]: 1652/2470 cut-off events. [2023-08-30 03:17:47,783 INFO L131 PetriNetUnfolder]: For 1895/1901 co-relation queries the response was YES. [2023-08-30 03:17:47,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6682 conditions, 2470 events. 1652/2470 cut-off events. For 1895/1901 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 12623 event pairs, 657 based on Foata normal form. 60/2254 useless extension candidates. Maximal degree in co-relation 6671. Up to 1453 conditions per place. [2023-08-30 03:17:47,799 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 34 selfloop transitions, 10 changer transitions 11/59 dead transitions. [2023-08-30 03:17:47,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 59 transitions, 375 flow [2023-08-30 03:17:47,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:17:47,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:17:47,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-08-30 03:17:47,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4174174174174174 [2023-08-30 03:17:47,802 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-08-30 03:17:47,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-08-30 03:17:47,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:47,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-08-30 03:17:47,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:47,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:47,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:47,809 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 191 flow. Second operand 6 states and 556 transitions. [2023-08-30 03:17:47,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 59 transitions, 375 flow [2023-08-30 03:17:47,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:17:47,817 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 216 flow [2023-08-30 03:17:47,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=216, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2023-08-30 03:17:47,819 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2023-08-30 03:17:47,819 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 216 flow [2023-08-30 03:17:47,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:47,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:47,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:47,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:17:47,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:47,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash 852425274, now seen corresponding path program 2 times [2023-08-30 03:17:47,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:47,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582590948] [2023-08-30 03:17:47,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:47,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:48,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:48,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582590948] [2023-08-30 03:17:48,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582590948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:48,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:48,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:17:48,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038294569] [2023-08-30 03:17:48,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:48,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:17:48,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:48,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:17:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:17:48,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 222 [2023-08-30 03:17:48,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 216 flow. Second operand has 7 states, 7 states have (on average 85.71428571428571) internal successors, (600), 7 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:48,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:48,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 222 [2023-08-30 03:17:48,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:48,811 INFO L130 PetriNetUnfolder]: 1532/2345 cut-off events. [2023-08-30 03:17:48,811 INFO L131 PetriNetUnfolder]: For 3020/3038 co-relation queries the response was YES. [2023-08-30 03:17:48,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6690 conditions, 2345 events. 1532/2345 cut-off events. For 3020/3038 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 12279 event pairs, 822 based on Foata normal form. 60/2162 useless extension candidates. Maximal degree in co-relation 6676. Up to 1488 conditions per place. [2023-08-30 03:17:48,827 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 27 selfloop transitions, 3 changer transitions 23/57 dead transitions. [2023-08-30 03:17:48,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 396 flow [2023-08-30 03:17:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:17:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:17:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 633 transitions. [2023-08-30 03:17:48,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40733590733590735 [2023-08-30 03:17:48,829 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 633 transitions. [2023-08-30 03:17:48,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 633 transitions. [2023-08-30 03:17:48,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:48,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 633 transitions. [2023-08-30 03:17:48,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:48,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:48,833 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:48,833 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 216 flow. Second operand 7 states and 633 transitions. [2023-08-30 03:17:48,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 396 flow [2023-08-30 03:17:48,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 340 flow, removed 7 selfloop flow, removed 11 redundant places. [2023-08-30 03:17:48,849 INFO L231 Difference]: Finished difference. Result has 50 places, 32 transitions, 167 flow [2023-08-30 03:17:48,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=167, PETRI_PLACES=50, PETRI_TRANSITIONS=32} [2023-08-30 03:17:48,850 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2023-08-30 03:17:48,850 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 32 transitions, 167 flow [2023-08-30 03:17:48,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.71428571428571) internal successors, (600), 7 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:48,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:48,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:48,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:17:48,851 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:48,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:48,851 INFO L85 PathProgramCache]: Analyzing trace with hash 520784416, now seen corresponding path program 3 times [2023-08-30 03:17:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400675706] [2023-08-30 03:17:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:48,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:49,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:49,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400675706] [2023-08-30 03:17:49,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400675706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:49,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:49,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:17:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562576154] [2023-08-30 03:17:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:49,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:17:49,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:17:49,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:17:49,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 222 [2023-08-30 03:17:49,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 32 transitions, 167 flow. Second operand has 7 states, 7 states have (on average 83.71428571428571) internal successors, (586), 7 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:49,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:49,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 222 [2023-08-30 03:17:49,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:49,855 INFO L130 PetriNetUnfolder]: 1430/2183 cut-off events. [2023-08-30 03:17:49,856 INFO L131 PetriNetUnfolder]: For 2472/2478 co-relation queries the response was YES. [2023-08-30 03:17:49,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5923 conditions, 2183 events. 1430/2183 cut-off events. For 2472/2478 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 11379 event pairs, 705 based on Foata normal form. 80/2075 useless extension candidates. Maximal degree in co-relation 5911. Up to 1106 conditions per place. [2023-08-30 03:17:49,871 INFO L137 encePairwiseOnDemand]: 214/222 looper letters, 41 selfloop transitions, 10 changer transitions 18/73 dead transitions. [2023-08-30 03:17:49,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 73 transitions, 473 flow [2023-08-30 03:17:49,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:17:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:17:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 714 transitions. [2023-08-30 03:17:49,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40202702702702703 [2023-08-30 03:17:49,874 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 714 transitions. [2023-08-30 03:17:49,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 714 transitions. [2023-08-30 03:17:49,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:49,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 714 transitions. [2023-08-30 03:17:49,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.25) internal successors, (714), 8 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:49,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:49,880 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:49,880 INFO L175 Difference]: Start difference. First operand has 50 places, 32 transitions, 167 flow. Second operand 8 states and 714 transitions. [2023-08-30 03:17:49,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 73 transitions, 473 flow [2023-08-30 03:17:49,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 445 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 03:17:49,885 INFO L231 Difference]: Finished difference. Result has 52 places, 39 transitions, 249 flow [2023-08-30 03:17:49,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=249, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2023-08-30 03:17:49,886 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2023-08-30 03:17:49,886 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 249 flow [2023-08-30 03:17:49,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.71428571428571) internal successors, (586), 7 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:49,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:49,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:49,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:17:49,887 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:49,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash 627323657, now seen corresponding path program 1 times [2023-08-30 03:17:49,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:49,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008792094] [2023-08-30 03:17:49,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:49,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:50,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:50,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008792094] [2023-08-30 03:17:50,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008792094] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:50,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:50,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:50,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475179554] [2023-08-30 03:17:50,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:50,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:17:50,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:50,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:17:50,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:17:50,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 222 [2023-08-30 03:17:50,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 249 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:50,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:50,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 222 [2023-08-30 03:17:50,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:50,287 INFO L130 PetriNetUnfolder]: 1622/2392 cut-off events. [2023-08-30 03:17:50,288 INFO L131 PetriNetUnfolder]: For 4575/4575 co-relation queries the response was YES. [2023-08-30 03:17:50,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7203 conditions, 2392 events. 1622/2392 cut-off events. For 4575/4575 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10517 event pairs, 312 based on Foata normal form. 81/2473 useless extension candidates. Maximal degree in co-relation 7189. Up to 866 conditions per place. [2023-08-30 03:17:50,313 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 62 selfloop transitions, 7 changer transitions 0/69 dead transitions. [2023-08-30 03:17:50,313 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 69 transitions, 517 flow [2023-08-30 03:17:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 524 transitions. [2023-08-30 03:17:50,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4720720720720721 [2023-08-30 03:17:50,315 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 524 transitions. [2023-08-30 03:17:50,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 524 transitions. [2023-08-30 03:17:50,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:50,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 524 transitions. [2023-08-30 03:17:50,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:50,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:50,319 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:50,319 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 249 flow. Second operand 5 states and 524 transitions. [2023-08-30 03:17:50,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 69 transitions, 517 flow [2023-08-30 03:17:50,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 69 transitions, 493 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-30 03:17:50,330 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 305 flow [2023-08-30 03:17:50,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2023-08-30 03:17:50,332 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2023-08-30 03:17:50,332 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 305 flow [2023-08-30 03:17:50,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:50,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:50,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:50,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:17:50,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:50,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:50,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1843112360, now seen corresponding path program 1 times [2023-08-30 03:17:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:50,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699713637] [2023-08-30 03:17:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:50,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:50,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:50,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699713637] [2023-08-30 03:17:50,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699713637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:50,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:50,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:17:50,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2593705] [2023-08-30 03:17:50,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:50,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:17:50,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:50,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:17:50,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:17:50,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 222 [2023-08-30 03:17:50,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 305 flow. Second operand has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:50,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:50,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 222 [2023-08-30 03:17:50,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:51,329 INFO L130 PetriNetUnfolder]: 1437/2276 cut-off events. [2023-08-30 03:17:51,329 INFO L131 PetriNetUnfolder]: For 4401/4409 co-relation queries the response was YES. [2023-08-30 03:17:51,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6880 conditions, 2276 events. 1437/2276 cut-off events. For 4401/4409 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 12650 event pairs, 533 based on Foata normal form. 41/2223 useless extension candidates. Maximal degree in co-relation 6865. Up to 1431 conditions per place. [2023-08-30 03:17:51,344 INFO L137 encePairwiseOnDemand]: 216/222 looper letters, 26 selfloop transitions, 8 changer transitions 21/61 dead transitions. [2023-08-30 03:17:51,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 467 flow [2023-08-30 03:17:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:17:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:17:51,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 624 transitions. [2023-08-30 03:17:51,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4015444015444015 [2023-08-30 03:17:51,347 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 624 transitions. [2023-08-30 03:17:51,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 624 transitions. [2023-08-30 03:17:51,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:51,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 624 transitions. [2023-08-30 03:17:51,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:51,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:51,351 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:51,351 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 305 flow. Second operand 7 states and 624 transitions. [2023-08-30 03:17:51,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 467 flow [2023-08-30 03:17:51,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 464 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:17:51,359 INFO L231 Difference]: Finished difference. Result has 60 places, 37 transitions, 265 flow [2023-08-30 03:17:51,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=265, PETRI_PLACES=60, PETRI_TRANSITIONS=37} [2023-08-30 03:17:51,360 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2023-08-30 03:17:51,360 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 37 transitions, 265 flow [2023-08-30 03:17:51,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:51,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:51,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:17:51,361 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:51,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2015881250, now seen corresponding path program 2 times [2023-08-30 03:17:51,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:51,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591778769] [2023-08-30 03:17:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:51,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591778769] [2023-08-30 03:17:51,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591778769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:51,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:51,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:17:51,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385267659] [2023-08-30 03:17:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:51,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:17:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:17:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:17:51,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 222 [2023-08-30 03:17:51,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 37 transitions, 265 flow. Second operand has 7 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) [2023-08-30 03:17:51,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:51,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 222 [2023-08-30 03:17:51,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:52,199 INFO L130 PetriNetUnfolder]: 910/1476 cut-off events. [2023-08-30 03:17:52,199 INFO L131 PetriNetUnfolder]: For 3477/3484 co-relation queries the response was YES. [2023-08-30 03:17:52,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4428 conditions, 1476 events. 910/1476 cut-off events. For 3477/3484 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7395 event pairs, 215 based on Foata normal form. 59/1501 useless extension candidates. Maximal degree in co-relation 4411. Up to 668 conditions per place. [2023-08-30 03:17:52,209 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 27 selfloop transitions, 9 changer transitions 17/57 dead transitions. [2023-08-30 03:17:52,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 57 transitions, 420 flow [2023-08-30 03:17:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:17:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:17:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 704 transitions. [2023-08-30 03:17:52,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3963963963963964 [2023-08-30 03:17:52,212 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 704 transitions. [2023-08-30 03:17:52,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 704 transitions. [2023-08-30 03:17:52,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:52,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 704 transitions. [2023-08-30 03:17:52,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,217 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,218 INFO L175 Difference]: Start difference. First operand has 60 places, 37 transitions, 265 flow. Second operand 8 states and 704 transitions. [2023-08-30 03:17:52,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 57 transitions, 420 flow [2023-08-30 03:17:52,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 383 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 03:17:52,223 INFO L231 Difference]: Finished difference. Result has 57 places, 32 transitions, 206 flow [2023-08-30 03:17:52,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=206, PETRI_PLACES=57, PETRI_TRANSITIONS=32} [2023-08-30 03:17:52,225 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2023-08-30 03:17:52,225 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 32 transitions, 206 flow [2023-08-30 03:17:52,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 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) [2023-08-30 03:17:52,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:52,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:52,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:17:52,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:52,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1206296490, now seen corresponding path program 1 times [2023-08-30 03:17:52,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:52,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267175716] [2023-08-30 03:17:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:52,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:52,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267175716] [2023-08-30 03:17:52,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267175716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:52,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:52,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:52,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325700199] [2023-08-30 03:17:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:52,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:17:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:17:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:17:52,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 222 [2023-08-30 03:17:52,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 32 transitions, 206 flow. Second operand has 5 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:52,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 222 [2023-08-30 03:17:52,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:52,542 INFO L130 PetriNetUnfolder]: 1032/1573 cut-off events. [2023-08-30 03:17:52,542 INFO L131 PetriNetUnfolder]: For 2297/2297 co-relation queries the response was YES. [2023-08-30 03:17:52,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4761 conditions, 1573 events. 1032/1573 cut-off events. For 2297/2297 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6634 event pairs, 622 based on Foata normal form. 54/1627 useless extension candidates. Maximal degree in co-relation 4746. Up to 704 conditions per place. [2023-08-30 03:17:52,552 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 52 selfloop transitions, 10 changer transitions 0/62 dead transitions. [2023-08-30 03:17:52,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 462 flow [2023-08-30 03:17:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:52,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:52,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2023-08-30 03:17:52,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4765765765765766 [2023-08-30 03:17:52,555 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2023-08-30 03:17:52,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2023-08-30 03:17:52,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:52,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2023-08-30 03:17:52,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,559 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,559 INFO L175 Difference]: Start difference. First operand has 57 places, 32 transitions, 206 flow. Second operand 5 states and 529 transitions. [2023-08-30 03:17:52,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 462 flow [2023-08-30 03:17:52,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 62 transitions, 418 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-30 03:17:52,564 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 259 flow [2023-08-30 03:17:52,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=259, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2023-08-30 03:17:52,565 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2023-08-30 03:17:52,565 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 259 flow [2023-08-30 03:17:52,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:52,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:52,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:52,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:17:52,566 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:52,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1931066531, now seen corresponding path program 1 times [2023-08-30 03:17:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453435647] [2023-08-30 03:17:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:52,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:52,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453435647] [2023-08-30 03:17:52,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453435647] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:52,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:52,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:17:52,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585750585] [2023-08-30 03:17:52,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:52,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:17:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:52,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:17:52,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:17:53,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 222 [2023-08-30 03:17:53,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:53,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 222 [2023-08-30 03:17:53,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:53,253 INFO L130 PetriNetUnfolder]: 527/895 cut-off events. [2023-08-30 03:17:53,253 INFO L131 PetriNetUnfolder]: For 3126/3126 co-relation queries the response was YES. [2023-08-30 03:17:53,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 895 events. 527/895 cut-off events. For 3126/3126 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4148 event pairs, 246 based on Foata normal form. 72/946 useless extension candidates. Maximal degree in co-relation 2715. Up to 726 conditions per place. [2023-08-30 03:17:53,259 INFO L137 encePairwiseOnDemand]: 217/222 looper letters, 22 selfloop transitions, 7 changer transitions 2/33 dead transitions. [2023-08-30 03:17:53,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 33 transitions, 261 flow [2023-08-30 03:17:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:17:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:17:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 541 transitions. [2023-08-30 03:17:53,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40615615615615613 [2023-08-30 03:17:53,262 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 541 transitions. [2023-08-30 03:17:53,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 541 transitions. [2023-08-30 03:17:53,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:53,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 541 transitions. [2023-08-30 03:17:53,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,266 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,266 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 259 flow. Second operand 6 states and 541 transitions. [2023-08-30 03:17:53,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 33 transitions, 261 flow [2023-08-30 03:17:53,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 33 transitions, 239 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 03:17:53,269 INFO L231 Difference]: Finished difference. Result has 53 places, 28 transitions, 169 flow [2023-08-30 03:17:53,270 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=53, PETRI_TRANSITIONS=28} [2023-08-30 03:17:53,271 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2023-08-30 03:17:53,271 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 28 transitions, 169 flow [2023-08-30 03:17:53,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:53,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:53,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 03:17:53,272 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:53,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:53,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1932190888, now seen corresponding path program 1 times [2023-08-30 03:17:53,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:53,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866785899] [2023-08-30 03:17:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:53,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:53,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:53,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866785899] [2023-08-30 03:17:53,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866785899] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:53,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:53,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:17:53,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356614422] [2023-08-30 03:17:53,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:53,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:53,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:53,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 222 [2023-08-30 03:17:53,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 28 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:53,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 222 [2023-08-30 03:17:53,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:53,496 INFO L130 PetriNetUnfolder]: 378/616 cut-off events. [2023-08-30 03:17:53,497 INFO L131 PetriNetUnfolder]: For 1991/2006 co-relation queries the response was YES. [2023-08-30 03:17:53,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 616 events. 378/616 cut-off events. For 1991/2006 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2684 event pairs, 104 based on Foata normal form. 35/604 useless extension candidates. Maximal degree in co-relation 1885. Up to 391 conditions per place. [2023-08-30 03:17:53,500 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 52 selfloop transitions, 9 changer transitions 2/65 dead transitions. [2023-08-30 03:17:53,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 473 flow [2023-08-30 03:17:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2023-08-30 03:17:53,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4900900900900901 [2023-08-30 03:17:53,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2023-08-30 03:17:53,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2023-08-30 03:17:53,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:53,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2023-08-30 03:17:53,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,506 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,507 INFO L175 Difference]: Start difference. First operand has 53 places, 28 transitions, 169 flow. Second operand 5 states and 544 transitions. [2023-08-30 03:17:53,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 473 flow [2023-08-30 03:17:53,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 454 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 03:17:53,510 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 225 flow [2023-08-30 03:17:53,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2023-08-30 03:17:53,511 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2023-08-30 03:17:53,511 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 225 flow [2023-08-30 03:17:53,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:53,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:53,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 03:17:53,511 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:53,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:53,512 INFO L85 PathProgramCache]: Analyzing trace with hash 927327223, now seen corresponding path program 1 times [2023-08-30 03:17:53,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:53,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905901793] [2023-08-30 03:17:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:53,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:53,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:53,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905901793] [2023-08-30 03:17:53,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905901793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:53,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:53,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:17:53,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695893002] [2023-08-30 03:17:53,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:53,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:17:53,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:53,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:17:53,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:17:53,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 222 [2023-08-30 03:17:53,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:53,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 222 [2023-08-30 03:17:53,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:53,789 INFO L130 PetriNetUnfolder]: 628/1020 cut-off events. [2023-08-30 03:17:53,790 INFO L131 PetriNetUnfolder]: For 2688/2688 co-relation queries the response was YES. [2023-08-30 03:17:53,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4108 conditions, 1020 events. 628/1020 cut-off events. For 2688/2688 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4461 event pairs, 86 based on Foata normal form. 22/1042 useless extension candidates. Maximal degree in co-relation 4090. Up to 601 conditions per place. [2023-08-30 03:17:53,795 INFO L137 encePairwiseOnDemand]: 216/222 looper letters, 47 selfloop transitions, 8 changer transitions 21/76 dead transitions. [2023-08-30 03:17:53,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 76 transitions, 593 flow [2023-08-30 03:17:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:17:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:17:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 615 transitions. [2023-08-30 03:17:53,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4617117117117117 [2023-08-30 03:17:53,798 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 615 transitions. [2023-08-30 03:17:53,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 615 transitions. [2023-08-30 03:17:53,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:53,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 615 transitions. [2023-08-30 03:17:53,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,802 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,802 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 225 flow. Second operand 6 states and 615 transitions. [2023-08-30 03:17:53,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 76 transitions, 593 flow [2023-08-30 03:17:53,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 76 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:17:53,807 INFO L231 Difference]: Finished difference. Result has 62 places, 35 transitions, 237 flow [2023-08-30 03:17:53,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=62, PETRI_TRANSITIONS=35} [2023-08-30 03:17:53,808 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2023-08-30 03:17:53,808 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 35 transitions, 237 flow [2023-08-30 03:17:53,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:53,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:53,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 03:17:53,809 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:53,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash 802250158, now seen corresponding path program 1 times [2023-08-30 03:17:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:53,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681763096] [2023-08-30 03:17:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:53,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681763096] [2023-08-30 03:17:53,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681763096] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:53,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:53,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:53,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580273947] [2023-08-30 03:17:53,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:53,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:17:53,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:53,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:17:53,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:17:53,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 222 [2023-08-30 03:17:53,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 35 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:53,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:53,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 222 [2023-08-30 03:17:53,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:54,077 INFO L130 PetriNetUnfolder]: 343/613 cut-off events. [2023-08-30 03:17:54,078 INFO L131 PetriNetUnfolder]: For 2560/2623 co-relation queries the response was YES. [2023-08-30 03:17:54,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2576 conditions, 613 events. 343/613 cut-off events. For 2560/2623 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2934 event pairs, 38 based on Foata normal form. 43/631 useless extension candidates. Maximal degree in co-relation 2556. Up to 416 conditions per place. [2023-08-30 03:17:54,088 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 49 selfloop transitions, 9 changer transitions 23/84 dead transitions. [2023-08-30 03:17:54,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 84 transitions, 737 flow [2023-08-30 03:17:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:17:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:17:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2023-08-30 03:17:54,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49024024024024027 [2023-08-30 03:17:54,092 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 653 transitions. [2023-08-30 03:17:54,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 653 transitions. [2023-08-30 03:17:54,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:54,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 653 transitions. [2023-08-30 03:17:54,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,096 INFO L175 Difference]: Start difference. First operand has 62 places, 35 transitions, 237 flow. Second operand 6 states and 653 transitions. [2023-08-30 03:17:54,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 84 transitions, 737 flow [2023-08-30 03:17:54,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 84 transitions, 719 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 03:17:54,104 INFO L231 Difference]: Finished difference. Result has 66 places, 39 transitions, 302 flow [2023-08-30 03:17:54,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=66, PETRI_TRANSITIONS=39} [2023-08-30 03:17:54,105 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 24 predicate places. [2023-08-30 03:17:54,105 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 39 transitions, 302 flow [2023-08-30 03:17:54,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:54,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:54,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 03:17:54,106 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:54,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:54,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1691971503, now seen corresponding path program 1 times [2023-08-30 03:17:54,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:54,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151594725] [2023-08-30 03:17:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:54,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:54,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:54,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151594725] [2023-08-30 03:17:54,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151594725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:54,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:54,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:17:54,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624219623] [2023-08-30 03:17:54,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:54,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:17:54,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:54,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:17:54,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:17:54,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 222 [2023-08-30 03:17:54,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 39 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:54,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 222 [2023-08-30 03:17:54,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:54,359 INFO L130 PetriNetUnfolder]: 206/394 cut-off events. [2023-08-30 03:17:54,360 INFO L131 PetriNetUnfolder]: For 1966/2087 co-relation queries the response was YES. [2023-08-30 03:17:54,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 394 events. 206/394 cut-off events. For 1966/2087 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1737 event pairs, 6 based on Foata normal form. 46/423 useless extension candidates. Maximal degree in co-relation 2046. Up to 262 conditions per place. [2023-08-30 03:17:54,362 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 51 selfloop transitions, 13 changer transitions 17/84 dead transitions. [2023-08-30 03:17:54,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 809 flow [2023-08-30 03:17:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:17:54,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:17:54,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 756 transitions. [2023-08-30 03:17:54,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864864864864865 [2023-08-30 03:17:54,365 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 756 transitions. [2023-08-30 03:17:54,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 756 transitions. [2023-08-30 03:17:54,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:54,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 756 transitions. [2023-08-30 03:17:54,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,371 INFO L175 Difference]: Start difference. First operand has 66 places, 39 transitions, 302 flow. Second operand 7 states and 756 transitions. [2023-08-30 03:17:54,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 809 flow [2023-08-30 03:17:54,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 84 transitions, 747 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-08-30 03:17:54,379 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 352 flow [2023-08-30 03:17:54,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=352, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2023-08-30 03:17:54,381 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2023-08-30 03:17:54,381 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 352 flow [2023-08-30 03:17:54,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:54,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:54,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 03:17:54,382 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:54,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash 908508864, now seen corresponding path program 1 times [2023-08-30 03:17:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:54,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892530207] [2023-08-30 03:17:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:54,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:54,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892530207] [2023-08-30 03:17:54,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892530207] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:54,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:54,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:17:54,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222084912] [2023-08-30 03:17:54,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:54,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:17:54,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:54,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:17:54,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:17:54,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 222 [2023-08-30 03:17:54,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 43 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:54,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 222 [2023-08-30 03:17:54,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:54,635 INFO L130 PetriNetUnfolder]: 145/282 cut-off events. [2023-08-30 03:17:54,635 INFO L131 PetriNetUnfolder]: For 1154/1270 co-relation queries the response was YES. [2023-08-30 03:17:54,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 282 events. 145/282 cut-off events. For 1154/1270 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1113 event pairs, 2 based on Foata normal form. 38/306 useless extension candidates. Maximal degree in co-relation 1414. Up to 140 conditions per place. [2023-08-30 03:17:54,637 INFO L137 encePairwiseOnDemand]: 215/222 looper letters, 33 selfloop transitions, 17 changer transitions 22/74 dead transitions. [2023-08-30 03:17:54,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 74 transitions, 726 flow [2023-08-30 03:17:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:17:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:17:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 847 transitions. [2023-08-30 03:17:54,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4769144144144144 [2023-08-30 03:17:54,640 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 847 transitions. [2023-08-30 03:17:54,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 847 transitions. [2023-08-30 03:17:54,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:54,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 847 transitions. [2023-08-30 03:17:54,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.875) internal successors, (847), 8 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,645 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,646 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 352 flow. Second operand 8 states and 847 transitions. [2023-08-30 03:17:54,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 74 transitions, 726 flow [2023-08-30 03:17:54,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 74 transitions, 648 flow, removed 24 selfloop flow, removed 7 redundant places. [2023-08-30 03:17:54,651 INFO L231 Difference]: Finished difference. Result has 70 places, 38 transitions, 297 flow [2023-08-30 03:17:54,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=297, PETRI_PLACES=70, PETRI_TRANSITIONS=38} [2023-08-30 03:17:54,652 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2023-08-30 03:17:54,652 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 38 transitions, 297 flow [2023-08-30 03:17:54,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.42857142857143) internal successors, (710), 7 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:17:54,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:54,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 03:17:54,653 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-08-30 03:17:54,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:17:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1122720279, now seen corresponding path program 1 times [2023-08-30 03:17:54,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:17:54,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397471145] [2023-08-30 03:17:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:17:54,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:17:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:17:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:17:54,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:17:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397471145] [2023-08-30 03:17:54,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397471145] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:17:54,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:17:54,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:17:54,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30516113] [2023-08-30 03:17:54,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:17:54,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:17:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:17:54,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:17:54,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:17:54,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 222 [2023-08-30 03:17:54,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 38 transitions, 297 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:17:54,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 222 [2023-08-30 03:17:54,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:17:54,858 INFO L130 PetriNetUnfolder]: 87/172 cut-off events. [2023-08-30 03:17:54,858 INFO L131 PetriNetUnfolder]: For 531/531 co-relation queries the response was YES. [2023-08-30 03:17:54,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 172 events. 87/172 cut-off events. For 531/531 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 465 event pairs, 24 based on Foata normal form. 1/173 useless extension candidates. Maximal degree in co-relation 782. Up to 89 conditions per place. [2023-08-30 03:17:54,859 INFO L137 encePairwiseOnDemand]: 217/222 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2023-08-30 03:17:54,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 49 transitions, 458 flow [2023-08-30 03:17:54,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:17:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:17:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 504 transitions. [2023-08-30 03:17:54,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4540540540540541 [2023-08-30 03:17:54,863 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 504 transitions. [2023-08-30 03:17:54,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 504 transitions. [2023-08-30 03:17:54,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:17:54,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 504 transitions. [2023-08-30 03:17:54,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,869 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,869 INFO L175 Difference]: Start difference. First operand has 70 places, 38 transitions, 297 flow. Second operand 5 states and 504 transitions. [2023-08-30 03:17:54,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 49 transitions, 458 flow [2023-08-30 03:17:54,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 49 transitions, 366 flow, removed 18 selfloop flow, removed 9 redundant places. [2023-08-30 03:17:54,872 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2023-08-30 03:17:54,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2023-08-30 03:17:54,872 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2023-08-30 03:17:54,873 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2023-08-30 03:17:54,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:17:54,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2023-08-30 03:17:54,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2023-08-30 03:17:54,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2023-08-30 03:17:54,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2023-08-30 03:17:54,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2023-08-30 03:17:54,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2023-08-30 03:17:54,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2023-08-30 03:17:54,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2023-08-30 03:17:54,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (5 of 14 remaining) [2023-08-30 03:17:54,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (4 of 14 remaining) [2023-08-30 03:17:54,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2023-08-30 03:17:54,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 14 remaining) [2023-08-30 03:17:54,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 14 remaining) [2023-08-30 03:17:54,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 14 remaining) [2023-08-30 03:17:54,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 03:17:54,880 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:17:54,883 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:17:54,883 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:17:54,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:17:54 BasicIcfg [2023-08-30 03:17:54,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:17:54,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:17:54,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:17:54,887 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:17:54,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:17:40" (3/4) ... [2023-08-30 03:17:54,890 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:17:54,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:17:54,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:17:54,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:17:54,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 03:17:54,901 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 03:17:54,901 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:17:54,901 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:17:54,902 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:17:54,935 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:17:54,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:17:54,936 INFO L158 Benchmark]: Toolchain (without parser) took 15788.80ms. Allocated memory was 69.2MB in the beginning and 371.2MB in the end (delta: 302.0MB). Free memory was 45.3MB in the beginning and 282.0MB in the end (delta: -236.6MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,936 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:17:54,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.80ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 41.4MB in the end (delta: 3.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.38ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 39.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,937 INFO L158 Benchmark]: Boogie Preprocessor took 21.86ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 37.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,938 INFO L158 Benchmark]: RCFGBuilder took 483.02ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 39.8MB in the end (delta: -2.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,938 INFO L158 Benchmark]: TraceAbstraction took 14680.84ms. Allocated memory was 69.2MB in the beginning and 371.2MB in the end (delta: 302.0MB). Free memory was 39.1MB in the beginning and 285.1MB in the end (delta: -246.0MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,939 INFO L158 Benchmark]: Witness Printer took 48.63ms. Allocated memory is still 371.2MB. Free memory was 285.1MB in the beginning and 282.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:17:54,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.80ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 41.4MB in the end (delta: 3.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.38ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 39.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.86ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 37.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.02ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 39.8MB in the end (delta: -2.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14680.84ms. Allocated memory was 69.2MB in the beginning and 371.2MB in the end (delta: 302.0MB). Free memory was 39.1MB in the beginning and 285.1MB in the end (delta: -246.0MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Witness Printer took 48.63ms. Allocated memory is still 371.2MB. Free memory was 285.1MB in the beginning and 282.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 115 PlacesBefore, 42 PlacesAfterwards, 104 TransitionsBefore, 30 TransitionsAfterwards, 2250 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 4371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2311, independent: 2200, independent conditional: 0, independent unconditional: 2200, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1270, independent: 1244, independent conditional: 0, independent unconditional: 1244, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2311, independent: 956, independent conditional: 0, independent unconditional: 956, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 1270, unknown conditional: 0, unknown unconditional: 1270] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: -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: 788]: 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 9 procedures, 141 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.5s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1587 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1158 mSDsluCounter, 442 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 341 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4680 IncrementalHoareTripleChecker+Invalid, 4804 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 101 mSDtfsCounter, 4680 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=16, InterpolantAutomatonStates: 106, 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, 0.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 3818 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:17:54,969 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