./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e --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 03:20:17,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:20:17,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:20:17,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:20:17,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:20:17,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:20:17,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:20:17,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:20:17,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:20:17,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:20:17,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:20:17,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:20:17,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:20:17,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:20:17,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:20:17,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:20:17,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:20:17,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:20:17,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:20:17,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:20:17,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:20:17,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:20:17,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:20:17,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:20:17,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:20:17,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:20:17,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:20:17,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:20:17,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:20:17,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:20:17,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:20:17,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:20:17,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:20:17,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:20:17,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:20:17,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:20:17,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:20:17,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:20:17,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:20:17,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:20:17,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:20:17,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:20:17,634 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:20:17,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:20:17,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:20:17,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:20:17,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:20:17,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:20:17,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:20:17,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:20:17,638 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:20:17,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:20:17,639 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:20:17,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:20:17,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:20:17,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:20:17,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:20:17,640 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:20:17,640 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:20:17,640 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:20:17,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:20:17,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:20:17,641 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:20:17,641 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:20:17,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:20:17,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:20:17,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:20:17,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:20:17,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:20:17,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:20:17,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:20:17,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:20:17,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:20:17,642 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:20:17,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:20:17,643 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:20:17,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:20:17,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:20:17,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:20:17,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:20:17,958 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:20:17,958 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:20:17,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i [2023-08-30 03:20:19,206 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:20:19,439 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:20:19,439 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.i [2023-08-30 03:20:19,448 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3185cc274/95d95e5fb2624da8b08762e0b6a6c883/FLAGc50810d4e [2023-08-30 03:20:19,460 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3185cc274/95d95e5fb2624da8b08762e0b6a6c883 [2023-08-30 03:20:19,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:20:19,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:20:19,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:20:19,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:20:19,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:20:19,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:20:19" (1/1) ... [2023-08-30 03:20:19,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482ac769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:19, skipping insertion in model container [2023-08-30 03:20:19,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:20:19" (1/1) ... [2023-08-30 03:20:19,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:20:19,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:20:19,716 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/safe034_tso.i[945,958] [2023-08-30 03:20:19,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:20:19,899 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:20:19,914 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/safe034_tso.i[945,958] [2023-08-30 03:20:19,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:20:20,040 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:20:20,040 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:20:20,045 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:20:20,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20 WrapperNode [2023-08-30 03:20:20,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:20:20,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:20:20,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:20:20,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:20:20,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,116 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-30 03:20:20,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:20:20,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:20:20,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:20:20,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:20:20,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:20:20,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:20:20,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:20:20,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:20:20,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (1/1) ... [2023-08-30 03:20:20,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:20:20,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:20:20,196 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 03:20:20,199 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 03:20:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:20:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:20:20,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:20:20,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:20:20,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:20:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:20:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:20:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:20:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:20:20,236 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 03:20:20,393 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:20:20,394 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:20:20,594 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:20:20,599 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:20:20,600 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:20:20,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:20 BoogieIcfgContainer [2023-08-30 03:20:20,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:20:20,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:20:20,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:20:20,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:20:20,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:20:19" (1/3) ... [2023-08-30 03:20:20,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c63f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:20:20, skipping insertion in model container [2023-08-30 03:20:20,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:20" (2/3) ... [2023-08-30 03:20:20,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c63f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:20:20, skipping insertion in model container [2023-08-30 03:20:20,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:20" (3/3) ... [2023-08-30 03:20:20,611 INFO L112 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2023-08-30 03:20:20,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:20:20,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:20:20,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:20:20,690 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:20:20,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2023-08-30 03:20:20,788 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-30 03:20:20,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:20,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 03:20:20,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2023-08-30 03:20:20,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:20,805 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:20:20,817 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:20,820 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:20,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:20,841 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-08-30 03:20:20,841 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:20,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-30 03:20:20,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-30 03:20:22,792 INFO L134 LiptonReduction]: Checked pairs total: 3034 [2023-08-30 03:20:22,793 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-08-30 03:20:22,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:20:22,820 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b740500, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:20:22,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:20:22,821 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:20:22,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:22,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:22,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:20:22,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:22,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:22,827 INFO L85 PathProgramCache]: Analyzing trace with hash 338, now seen corresponding path program 1 times [2023-08-30 03:20:22,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:22,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4339211] [2023-08-30 03:20:22,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:22,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:22,936 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 03:20:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4339211] [2023-08-30 03:20:22,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4339211] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:22,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:22,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:20:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662902725] [2023-08-30 03:20:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:22,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:20:22,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:20:22,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:20:22,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 186 [2023-08-30 03:20:22,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:22,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:22,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 186 [2023-08-30 03:20:22,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:23,063 INFO L130 PetriNetUnfolder]: 272/455 cut-off events. [2023-08-30 03:20:23,063 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 03:20:23,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 455 events. 272/455 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1979 event pairs, 272 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 907. Up to 433 conditions per place. [2023-08-30 03:20:23,069 INFO L137 encePairwiseOnDemand]: 179/186 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-30 03:20:23,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-30 03:20:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:20:23,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:20:23,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 201 transitions. [2023-08-30 03:20:23,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2023-08-30 03:20:23,081 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 201 transitions. [2023-08-30 03:20:23,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 201 transitions. [2023-08-30 03:20:23,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:23,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 201 transitions. [2023-08-30 03:20:23,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:23,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 03:20:23,093 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 03:20:23,094 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 201 transitions. [2023-08-30 03:20:23,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-30 03:20:23,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:23,096 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-30 03:20:23,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 03:20:23,100 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-30 03:20:23,100 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-30 03:20:23,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:23,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:23,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:23,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:20:23,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:23,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:23,110 INFO L85 PathProgramCache]: Analyzing trace with hash 973414305, now seen corresponding path program 1 times [2023-08-30 03:20:23,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:23,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441319619] [2023-08-30 03:20:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:23,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:23,572 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 03:20:23,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:23,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441319619] [2023-08-30 03:20:23,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441319619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:23,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:23,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:23,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873642812] [2023-08-30 03:20:23,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:23,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:23,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:23,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:23,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:23,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 186 [2023-08-30 03:20:23,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 03:20:23,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:23,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 186 [2023-08-30 03:20:23,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:23,701 INFO L130 PetriNetUnfolder]: 218/373 cut-off events. [2023-08-30 03:20:23,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:23,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 373 events. 218/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1556 event pairs, 90 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 750. Up to 327 conditions per place. [2023-08-30 03:20:23,704 INFO L137 encePairwiseOnDemand]: 182/186 looper letters, 18 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-08-30 03:20:23,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 96 flow [2023-08-30 03:20:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:23,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:23,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2023-08-30 03:20:23,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.421505376344086 [2023-08-30 03:20:23,707 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 392 transitions. [2023-08-30 03:20:23,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 392 transitions. [2023-08-30 03:20:23,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:23,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 392 transitions. [2023-08-30 03:20:23,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 0 states have call successors, (0), 0 states 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 03:20:23,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:23,711 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:23,711 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 392 transitions. [2023-08-30 03:20:23,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 96 flow [2023-08-30 03:20:23,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:20:23,712 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 48 flow [2023-08-30 03:20:23,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2023-08-30 03:20:23,713 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2023-08-30 03:20:23,713 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 48 flow [2023-08-30 03:20:23,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 03:20:23,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:23,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:23,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:20:23,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:23,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:23,714 INFO L85 PathProgramCache]: Analyzing trace with hash 973414263, now seen corresponding path program 1 times [2023-08-30 03:20:23,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:23,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746487348] [2023-08-30 03:20:23,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:23,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:23,851 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 03:20:23,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:23,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746487348] [2023-08-30 03:20:23,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746487348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:23,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:23,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:23,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199600621] [2023-08-30 03:20:23,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:23,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:23,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:23,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:23,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:23,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 186 [2023-08-30 03:20:23,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:23,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:23,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 186 [2023-08-30 03:20:23,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:23,960 INFO L130 PetriNetUnfolder]: 306/520 cut-off events. [2023-08-30 03:20:23,961 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 03:20:23,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 520 events. 306/520 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2306 event pairs, 121 based on Foata normal form. 36/555 useless extension candidates. Maximal degree in co-relation 1058. Up to 385 conditions per place. [2023-08-30 03:20:23,963 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 23 selfloop transitions, 3 changer transitions 13/41 dead transitions. [2023-08-30 03:20:23,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 180 flow [2023-08-30 03:20:23,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:23,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2023-08-30 03:20:23,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010752688172043 [2023-08-30 03:20:23,966 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 466 transitions. [2023-08-30 03:20:23,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 466 transitions. [2023-08-30 03:20:23,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:23,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 466 transitions. [2023-08-30 03:20:23,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 03:20:23,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:23,969 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:23,969 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 48 flow. Second operand 5 states and 466 transitions. [2023-08-30 03:20:23,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 180 flow [2023-08-30 03:20:23,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:23,970 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 70 flow [2023-08-30 03:20:23,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=70, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2023-08-30 03:20:23,971 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 03:20:23,971 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 70 flow [2023-08-30 03:20:23,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:23,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:23,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:23,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:20:23,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:23,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:23,973 INFO L85 PathProgramCache]: Analyzing trace with hash 111027794, now seen corresponding path program 1 times [2023-08-30 03:20:23,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:23,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453899680] [2023-08-30 03:20:23,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:23,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:24,100 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 03:20:24,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:24,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453899680] [2023-08-30 03:20:24,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453899680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:24,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:24,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:24,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266430774] [2023-08-30 03:20:24,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:24,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:24,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:24,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 186 [2023-08-30 03:20:24,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 03:20:24,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:24,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 186 [2023-08-30 03:20:24,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:24,180 INFO L130 PetriNetUnfolder]: 202/363 cut-off events. [2023-08-30 03:20:24,180 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2023-08-30 03:20:24,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 363 events. 202/363 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1449 event pairs, 37 based on Foata normal form. 28/384 useless extension candidates. Maximal degree in co-relation 933. Up to 161 conditions per place. [2023-08-30 03:20:24,182 INFO L137 encePairwiseOnDemand]: 180/186 looper letters, 29 selfloop transitions, 5 changer transitions 1/39 dead transitions. [2023-08-30 03:20:24,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 197 flow [2023-08-30 03:20:24,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:20:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:20:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2023-08-30 03:20:24,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49193548387096775 [2023-08-30 03:20:24,184 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 366 transitions. [2023-08-30 03:20:24,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 366 transitions. [2023-08-30 03:20:24,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:24,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 366 transitions. [2023-08-30 03:20:24,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states 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 03:20:24,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states 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 03:20:24,187 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states 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 03:20:24,187 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 70 flow. Second operand 4 states and 366 transitions. [2023-08-30 03:20:24,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 197 flow [2023-08-30 03:20:24,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 190 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 03:20:24,189 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 99 flow [2023-08-30 03:20:24,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-30 03:20:24,190 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 03:20:24,190 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 99 flow [2023-08-30 03:20:24,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 03:20:24,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:24,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:24,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:20:24,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:24,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:24,191 INFO L85 PathProgramCache]: Analyzing trace with hash -803532462, now seen corresponding path program 1 times [2023-08-30 03:20:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:24,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688722959] [2023-08-30 03:20:24,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:24,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:24,367 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 03:20:24,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:24,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688722959] [2023-08-30 03:20:24,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688722959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:24,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:24,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:24,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934489234] [2023-08-30 03:20:24,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:24,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:24,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:24,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:24,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:24,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 186 [2023-08-30 03:20:24,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states 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 03:20:24,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:24,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 186 [2023-08-30 03:20:24,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:24,446 INFO L130 PetriNetUnfolder]: 108/216 cut-off events. [2023-08-30 03:20:24,446 INFO L131 PetriNetUnfolder]: For 207/207 co-relation queries the response was YES. [2023-08-30 03:20:24,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 216 events. 108/216 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 740 event pairs, 18 based on Foata normal form. 20/232 useless extension candidates. Maximal degree in co-relation 681. Up to 82 conditions per place. [2023-08-30 03:20:24,447 INFO L137 encePairwiseOnDemand]: 180/186 looper letters, 33 selfloop transitions, 8 changer transitions 1/46 dead transitions. [2023-08-30 03:20:24,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 266 flow [2023-08-30 03:20:24,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2023-08-30 03:20:24,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4913978494623656 [2023-08-30 03:20:24,448 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2023-08-30 03:20:24,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2023-08-30 03:20:24,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:24,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2023-08-30 03:20:24,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states 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 03:20:24,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:24,452 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:24,452 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 99 flow. Second operand 5 states and 457 transitions. [2023-08-30 03:20:24,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 266 flow [2023-08-30 03:20:24,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 256 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 03:20:24,453 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 139 flow [2023-08-30 03:20:24,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-08-30 03:20:24,455 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2023-08-30 03:20:24,455 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 139 flow [2023-08-30 03:20:24,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states 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 03:20:24,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:24,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:24,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:20:24,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:24,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:24,456 INFO L85 PathProgramCache]: Analyzing trace with hash 94305202, now seen corresponding path program 1 times [2023-08-30 03:20:24,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:24,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266481311] [2023-08-30 03:20:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:24,583 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 03:20:24,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:24,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266481311] [2023-08-30 03:20:24,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266481311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:24,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:24,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:24,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693360609] [2023-08-30 03:20:24,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:24,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:24,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:24,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:24,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:24,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 186 [2023-08-30 03:20:24,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 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 03:20:24,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:24,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 186 [2023-08-30 03:20:24,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:24,713 INFO L130 PetriNetUnfolder]: 234/450 cut-off events. [2023-08-30 03:20:24,713 INFO L131 PetriNetUnfolder]: For 667/667 co-relation queries the response was YES. [2023-08-30 03:20:24,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 450 events. 234/450 cut-off events. For 667/667 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1904 event pairs, 3 based on Foata normal form. 13/463 useless extension candidates. Maximal degree in co-relation 1596. Up to 214 conditions per place. [2023-08-30 03:20:24,717 INFO L137 encePairwiseOnDemand]: 178/186 looper letters, 58 selfloop transitions, 13 changer transitions 15/86 dead transitions. [2023-08-30 03:20:24,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 86 transitions, 626 flow [2023-08-30 03:20:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:20:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:20:24,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 700 transitions. [2023-08-30 03:20:24,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47043010752688175 [2023-08-30 03:20:24,719 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 700 transitions. [2023-08-30 03:20:24,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 700 transitions. [2023-08-30 03:20:24,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:24,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 700 transitions. [2023-08-30 03:20:24,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 87.5) internal successors, (700), 8 states have internal predecessors, (700), 0 states have call successors, (0), 0 states 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 03:20:24,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 186.0) internal successors, (1674), 9 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states 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 03:20:24,725 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 186.0) internal successors, (1674), 9 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states 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 03:20:24,725 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 139 flow. Second operand 8 states and 700 transitions. [2023-08-30 03:20:24,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 86 transitions, 626 flow [2023-08-30 03:20:24,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 86 transitions, 554 flow, removed 14 selfloop flow, removed 4 redundant places. [2023-08-30 03:20:24,733 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 229 flow [2023-08-30 03:20:24,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=229, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2023-08-30 03:20:24,735 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2023-08-30 03:20:24,735 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 229 flow [2023-08-30 03:20:24,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 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 03:20:24,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:24,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:24,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:20:24,737 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:24,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1949706796, now seen corresponding path program 2 times [2023-08-30 03:20:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:24,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573467117] [2023-08-30 03:20:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:24,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:24,934 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 03:20:24,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:24,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573467117] [2023-08-30 03:20:24,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573467117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:24,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:24,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:20:24,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180227410] [2023-08-30 03:20:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:24,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:20:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:20:24,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:20:24,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 186 [2023-08-30 03:20:24,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states 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 03:20:24,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:24,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 186 [2023-08-30 03:20:24,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:25,023 INFO L130 PetriNetUnfolder]: 120/266 cut-off events. [2023-08-30 03:20:25,023 INFO L131 PetriNetUnfolder]: For 577/619 co-relation queries the response was YES. [2023-08-30 03:20:25,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 266 events. 120/266 cut-off events. For 577/619 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1214 event pairs, 16 based on Foata normal form. 42/293 useless extension candidates. Maximal degree in co-relation 977. Up to 87 conditions per place. [2023-08-30 03:20:25,025 INFO L137 encePairwiseOnDemand]: 180/186 looper letters, 26 selfloop transitions, 11 changer transitions 8/54 dead transitions. [2023-08-30 03:20:25,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 411 flow [2023-08-30 03:20:25,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:20:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:20:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2023-08-30 03:20:25,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.478494623655914 [2023-08-30 03:20:25,026 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2023-08-30 03:20:25,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2023-08-30 03:20:25,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:25,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2023-08-30 03:20:25,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 03:20:25,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states 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 03:20:25,029 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states 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 03:20:25,029 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 229 flow. Second operand 6 states and 534 transitions. [2023-08-30 03:20:25,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 411 flow [2023-08-30 03:20:25,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 375 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-30 03:20:25,032 INFO L231 Difference]: Finished difference. Result has 48 places, 35 transitions, 230 flow [2023-08-30 03:20:25,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=48, PETRI_TRANSITIONS=35} [2023-08-30 03:20:25,032 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2023-08-30 03:20:25,032 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 230 flow [2023-08-30 03:20:25,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states 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 03:20:25,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:25,032 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 03:20:25,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:20:25,033 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:25,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1503093921, now seen corresponding path program 1 times [2023-08-30 03:20:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:25,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10158177] [2023-08-30 03:20:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:25,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:25,145 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 03:20:25,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:25,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10158177] [2023-08-30 03:20:25,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10158177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:25,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:25,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:25,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29878649] [2023-08-30 03:20:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:25,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:25,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:25,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:25,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:25,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 186 [2023-08-30 03:20:25,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 230 flow. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:25,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:25,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 186 [2023-08-30 03:20:25,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:25,215 INFO L130 PetriNetUnfolder]: 217/440 cut-off events. [2023-08-30 03:20:25,215 INFO L131 PetriNetUnfolder]: For 964/964 co-relation queries the response was YES. [2023-08-30 03:20:25,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 440 events. 217/440 cut-off events. For 964/964 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1962 event pairs, 34 based on Foata normal form. 1/441 useless extension candidates. Maximal degree in co-relation 1826. Up to 285 conditions per place. [2023-08-30 03:20:25,216 INFO L137 encePairwiseOnDemand]: 180/186 looper letters, 26 selfloop transitions, 4 changer transitions 29/59 dead transitions. [2023-08-30 03:20:25,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 507 flow [2023-08-30 03:20:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:25,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 441 transitions. [2023-08-30 03:20:25,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47419354838709676 [2023-08-30 03:20:25,218 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 441 transitions. [2023-08-30 03:20:25,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 441 transitions. [2023-08-30 03:20:25,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:25,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 441 transitions. [2023-08-30 03:20:25,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 0 states have call successors, (0), 0 states 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 03:20:25,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:25,220 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:25,220 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 230 flow. Second operand 5 states and 441 transitions. [2023-08-30 03:20:25,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 507 flow [2023-08-30 03:20:25,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 461 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:25,224 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 181 flow [2023-08-30 03:20:25,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=181, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2023-08-30 03:20:25,224 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 17 predicate places. [2023-08-30 03:20:25,224 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 181 flow [2023-08-30 03:20:25,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:25,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:25,225 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 03:20:25,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:20:25,225 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:25,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:25,225 INFO L85 PathProgramCache]: Analyzing trace with hash 583631625, now seen corresponding path program 2 times [2023-08-30 03:20:25,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:25,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864215206] [2023-08-30 03:20:25,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:25,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:25,325 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 03:20:25,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:25,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864215206] [2023-08-30 03:20:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864215206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:25,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:25,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:25,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093826333] [2023-08-30 03:20:25,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:25,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:25,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:25,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:25,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 186 [2023-08-30 03:20:25,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states 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 03:20:25,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:25,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 186 [2023-08-30 03:20:25,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:25,370 INFO L130 PetriNetUnfolder]: 34/90 cut-off events. [2023-08-30 03:20:25,370 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2023-08-30 03:20:25,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 90 events. 34/90 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 252 event pairs, 7 based on Foata normal form. 1/91 useless extension candidates. Maximal degree in co-relation 380. Up to 42 conditions per place. [2023-08-30 03:20:25,370 INFO L137 encePairwiseOnDemand]: 182/186 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2023-08-30 03:20:25,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 32 transitions, 267 flow [2023-08-30 03:20:25,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:25,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 439 transitions. [2023-08-30 03:20:25,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4720430107526882 [2023-08-30 03:20:25,371 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 439 transitions. [2023-08-30 03:20:25,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 439 transitions. [2023-08-30 03:20:25,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:25,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 439 transitions. [2023-08-30 03:20:25,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:20:25,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:25,374 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states 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 03:20:25,374 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 181 flow. Second operand 5 states and 439 transitions. [2023-08-30 03:20:25,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 32 transitions, 267 flow [2023-08-30 03:20:25,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 190 flow, removed 11 selfloop flow, removed 13 redundant places. [2023-08-30 03:20:25,375 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-30 03:20:25,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-30 03:20:25,375 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-30 03:20:25,376 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-30 03:20:25,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states 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 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:20:25,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:20:25,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:20:25,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:20:25,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:20:25,379 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-30 03:20:25,381 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:20:25,381 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:20:25,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:20:25 BasicIcfg [2023-08-30 03:20:25,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:20:25,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:20:25,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:20:25,383 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:20:25,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:20" (3/4) ... [2023-08-30 03:20:25,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:20:25,388 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:20:25,388 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:20:25,389 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:20:25,391 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:20:25,391 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:20:25,391 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:20:25,391 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:20:25,412 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:20:25,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:20:25,413 INFO L158 Benchmark]: Toolchain (without parser) took 5948.99ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 63.9MB in the beginning and 52.0MB in the end (delta: 11.8MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,413 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:20:25,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.26ms. Allocated memory is still 88.1MB. Free memory was 63.7MB in the beginning and 63.5MB in the end (delta: 243.9kB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.34ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 61.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,413 INFO L158 Benchmark]: Boogie Preprocessor took 50.34ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 59.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,413 INFO L158 Benchmark]: RCFGBuilder took 433.44ms. Allocated memory is still 88.1MB. Free memory was 59.9MB in the beginning and 45.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,413 INFO L158 Benchmark]: TraceAbstraction took 4777.54ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 44.6MB in the beginning and 55.2MB in the end (delta: -10.6MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,414 INFO L158 Benchmark]: Witness Printer took 29.43ms. Allocated memory is still 172.0MB. Free memory was 55.2MB in the beginning and 52.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:20:25,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.26ms. Allocated memory is still 88.1MB. Free memory was 63.7MB in the beginning and 63.5MB in the end (delta: 243.9kB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.34ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 61.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.34ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 59.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.44ms. Allocated memory is still 88.1MB. Free memory was 59.9MB in the beginning and 45.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4777.54ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 44.6MB in the beginning and 55.2MB in the end (delta: -10.6MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. * Witness Printer took 29.43ms. Allocated memory is still 172.0MB. Free memory was 55.2MB in the beginning and 52.0MB 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: 2.0s, 96 PlacesBefore, 35 PlacesAfterwards, 88 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 3034 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1755, independent: 1674, independent conditional: 0, independent unconditional: 1674, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 853, independent: 827, independent conditional: 0, independent unconditional: 827, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1755, independent: 847, independent conditional: 0, independent unconditional: 847, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 853, unknown conditional: 0, unknown unconditional: 853] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 780]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 686 IncrementalHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 69 mSDtfsCounter, 686 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:20:25,461 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