./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_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 f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 23:41:55,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 23:41:55,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 23:41:55,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 23:41:55,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 23:41:55,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 23:41:55,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 23:41:55,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 23:41:55,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 23:41:55,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 23:41:55,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 23:41:55,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 23:41:55,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 23:41:55,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 23:41:55,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 23:41:55,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 23:41:55,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 23:41:55,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 23:41:55,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 23:41:55,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 23:41:55,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 23:41:55,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 23:41:55,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 23:41:55,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 23:41:55,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 23:41:55,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 23:41:55,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 23:41:55,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 23:41:55,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 23:41:55,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 23:41:55,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 23:41:55,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 23:41:55,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 23:41:55,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 23:41:55,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 23:41:55,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 23:41:55,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 23:41:55,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 23:41:55,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 23:41:55,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 23:41:55,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 23:41:55,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-31 23:41:55,738 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 23:41:55,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 23:41:55,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 23:41:55,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 23:41:55,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 23:41:55,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 23:41:55,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 23:41:55,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 23:41:55,740 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 23:41:55,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-31 23:41:55,741 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-31 23:41:55,742 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-31 23:41:55,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 23:41:55,742 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-31 23:41:55,742 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 23:41:55,742 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 23:41:55,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 23:41:55,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 23:41:55,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 23:41:55,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:41:55,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 23:41:55,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 23:41:55,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 23:41:55,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 23:41:55,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 23:41:55,744 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 23:41:55,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 23:41:55,744 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 23:41:55,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 23:41:56,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 23:41:56,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 23:41:56,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 23:41:56,053 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 23:41:56,054 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 23:41:56,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2023-08-31 23:41:57,060 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 23:41:57,259 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 23:41:57,260 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2023-08-31 23:41:57,276 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110cd3c33/57094e278fc9497795626393e57e0df6/FLAGa104af930 [2023-08-31 23:41:57,284 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110cd3c33/57094e278fc9497795626393e57e0df6 [2023-08-31 23:41:57,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 23:41:57,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 23:41:57,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 23:41:57,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 23:41:57,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 23:41:57,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7befda81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57, skipping insertion in model container [2023-08-31 23:41:57,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 23:41:57,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 23:41:57,476 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/safe024_tso.i[945,958] [2023-08-31 23:41:57,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:41:57,624 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 23:41:57,635 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/safe024_tso.i[945,958] [2023-08-31 23:41:57,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:41:57,696 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:41:57,696 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:41:57,700 INFO L208 MainTranslator]: Completed translation [2023-08-31 23:41:57,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57 WrapperNode [2023-08-31 23:41:57,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 23:41:57,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 23:41:57,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 23:41:57,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 23:41:57,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,747 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-08-31 23:41:57,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 23:41:57,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 23:41:57,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 23:41:57,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 23:41:57,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 23:41:57,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 23:41:57,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 23:41:57,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 23:41:57,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (1/1) ... [2023-08-31 23:41:57,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:41:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 23:41:57,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 23:41:57,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 23:41:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-31 23:41:57,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-31 23:41:57,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-31 23:41:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-31 23:41:57,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-31 23:41:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 23:41:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 23:41:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 23:41:57,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 23:41:57,842 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 23:41:57,941 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 23:41:57,947 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 23:41:58,076 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 23:41:58,080 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 23:41:58,080 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 23:41:58,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:41:58 BoogieIcfgContainer [2023-08-31 23:41:58,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 23:41:58,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 23:41:58,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 23:41:58,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 23:41:58,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:41:57" (1/3) ... [2023-08-31 23:41:58,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2321ddb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:41:58, skipping insertion in model container [2023-08-31 23:41:58,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:41:57" (2/3) ... [2023-08-31 23:41:58,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2321ddb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:41:58, skipping insertion in model container [2023-08-31 23:41:58,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:41:58" (3/3) ... [2023-08-31 23:41:58,087 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2023-08-31 23:41:58,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 23:41:58,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-31 23:41:58,098 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 23:41:58,140 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 23:41:58,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2023-08-31 23:41:58,206 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2023-08-31 23:41:58,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:58,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-31 23:41:58,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 207 flow [2023-08-31 23:41:58,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 89 transitions, 187 flow [2023-08-31 23:41:58,216 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 23:41:58,224 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 89 transitions, 187 flow [2023-08-31 23:41:58,225 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 89 transitions, 187 flow [2023-08-31 23:41:58,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 187 flow [2023-08-31 23:41:58,238 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2023-08-31 23:41:58,240 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:41:58,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-31 23:41:58,241 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-31 23:42:00,107 INFO L134 LiptonReduction]: Checked pairs total: 3015 [2023-08-31 23:42:00,107 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-31 23:42:00,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 23:42:00,120 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;@6cd6d5eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 23:42:00,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-31 23:42:00,121 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 23:42:00,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:42:00,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:00,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 23:42:00,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:00,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 338, now seen corresponding path program 1 times [2023-08-31 23:42:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887548138] [2023-08-31 23:42:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:00,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:00,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:00,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887548138] [2023-08-31 23:42:00,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887548138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:00,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:00,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 23:42:00,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532453737] [2023-08-31 23:42:00,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:00,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 23:42:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 23:42:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 23:42:00,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 184 [2023-08-31 23:42:00,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:00,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 184 [2023-08-31 23:42:00,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:00,331 INFO L130 PetriNetUnfolder]: 272/454 cut-off events. [2023-08-31 23:42:00,332 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:42:00,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 454 events. 272/454 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1969 event pairs, 272 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 906. Up to 433 conditions per place. [2023-08-31 23:42:00,337 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-31 23:42:00,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-31 23:42:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 23:42:00,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 23:42:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2023-08-31 23:42:00,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516304347826086 [2023-08-31 23:42:00,349 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 203 transitions. [2023-08-31 23:42:00,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 203 transitions. [2023-08-31 23:42:00,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:00,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 203 transitions. [2023-08-31 23:42:00,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,360 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,361 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 203 transitions. [2023-08-31 23:42:00,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-31 23:42:00,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 23:42:00,364 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-31 23:42:00,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-31 23:42:00,368 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-31 23:42:00,368 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-31 23:42:00,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:00,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:00,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 23:42:00,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:00,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:00,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1729539597, now seen corresponding path program 1 times [2023-08-31 23:42:00,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:00,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044244814] [2023-08-31 23:42:00,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:00,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:00,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:00,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:00,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044244814] [2023-08-31 23:42:00,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044244814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:00,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:00,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:42:00,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076111817] [2023-08-31 23:42:00,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:00,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:42:00,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:00,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:42:00,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:42:00,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 184 [2023-08-31 23:42:00,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:00,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 184 [2023-08-31 23:42:00,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:00,945 INFO L130 PetriNetUnfolder]: 218/391 cut-off events. [2023-08-31 23:42:00,945 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:42:00,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 391 events. 218/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1719 event pairs, 3 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 768. Up to 222 conditions per place. [2023-08-31 23:42:00,948 INFO L137 encePairwiseOnDemand]: 179/184 looper letters, 24 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2023-08-31 23:42:00,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 124 flow [2023-08-31 23:42:00,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 23:42:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 23:42:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2023-08-31 23:42:00,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2023-08-31 23:42:00,951 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2023-08-31 23:42:00,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2023-08-31 23:42:00,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:00,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2023-08-31 23:42:00,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,956 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,956 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 480 transitions. [2023-08-31 23:42:00,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 124 flow [2023-08-31 23:42:00,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 23:42:00,957 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 50 flow [2023-08-31 23:42:00,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2023-08-31 23:42:00,958 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-08-31 23:42:00,958 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 50 flow [2023-08-31 23:42:00,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:00,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:00,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:00,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 23:42:00,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:00,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1729539625, now seen corresponding path program 1 times [2023-08-31 23:42:00,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:00,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303533432] [2023-08-31 23:42:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:01,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:01,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303533432] [2023-08-31 23:42:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303533432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:01,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:01,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 23:42:01,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237657746] [2023-08-31 23:42:01,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:01,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 23:42:01,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:01,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 23:42:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 23:42:01,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2023-08-31 23:42:01,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:01,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2023-08-31 23:42:01,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:01,232 INFO L130 PetriNetUnfolder]: 439/702 cut-off events. [2023-08-31 23:42:01,232 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2023-08-31 23:42:01,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 702 events. 439/702 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3049 event pairs, 139 based on Foata normal form. 48/748 useless extension candidates. Maximal degree in co-relation 1501. Up to 537 conditions per place. [2023-08-31 23:42:01,236 INFO L137 encePairwiseOnDemand]: 179/184 looper letters, 24 selfloop transitions, 3 changer transitions 14/42 dead transitions. [2023-08-31 23:42:01,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 194 flow [2023-08-31 23:42:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:42:01,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:42:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 458 transitions. [2023-08-31 23:42:01,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49782608695652175 [2023-08-31 23:42:01,238 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 458 transitions. [2023-08-31 23:42:01,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 458 transitions. [2023-08-31 23:42:01,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:01,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 458 transitions. [2023-08-31 23:42:01,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,241 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,241 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 50 flow. Second operand 5 states and 458 transitions. [2023-08-31 23:42:01,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 194 flow [2023-08-31 23:42:01,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 180 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 23:42:01,242 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 71 flow [2023-08-31 23:42:01,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, 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=71, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2023-08-31 23:42:01,243 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-31 23:42:01,243 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 71 flow [2023-08-31 23:42:01,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:01,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:01,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 23:42:01,244 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:01,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:01,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2076155668, now seen corresponding path program 1 times [2023-08-31 23:42:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:01,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391404147] [2023-08-31 23:42:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:01,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:01,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:01,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391404147] [2023-08-31 23:42:01,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391404147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:01,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:01,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:42:01,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767409502] [2023-08-31 23:42:01,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:01,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:42:01,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:01,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:42:01,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:42:01,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 184 [2023-08-31 23:42:01,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:01,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 184 [2023-08-31 23:42:01,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:01,445 INFO L130 PetriNetUnfolder]: 355/623 cut-off events. [2023-08-31 23:42:01,445 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-08-31 23:42:01,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 623 events. 355/623 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2938 event pairs, 91 based on Foata normal form. 48/670 useless extension candidates. Maximal degree in co-relation 1476. Up to 161 conditions per place. [2023-08-31 23:42:01,448 INFO L137 encePairwiseOnDemand]: 179/184 looper letters, 22 selfloop transitions, 4 changer transitions 20/49 dead transitions. [2023-08-31 23:42:01,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 246 flow [2023-08-31 23:42:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:42:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:42:01,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 642 transitions. [2023-08-31 23:42:01,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4984472049689441 [2023-08-31 23:42:01,449 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 642 transitions. [2023-08-31 23:42:01,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 642 transitions. [2023-08-31 23:42:01,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:01,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 642 transitions. [2023-08-31 23:42:01,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.71428571428571) internal successors, (642), 7 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,453 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,453 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 71 flow. Second operand 7 states and 642 transitions. [2023-08-31 23:42:01,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 246 flow [2023-08-31 23:42:01,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 232 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-31 23:42:01,455 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 87 flow [2023-08-31 23:42:01,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=87, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-31 23:42:01,456 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-31 23:42:01,456 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 87 flow [2023-08-31 23:42:01,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:01,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:01,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 23:42:01,457 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)] === [2023-08-31 23:42:01,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:01,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1738633744, now seen corresponding path program 1 times [2023-08-31 23:42:01,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:01,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779842256] [2023-08-31 23:42:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:01,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:01,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:01,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779842256] [2023-08-31 23:42:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779842256] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:42:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99704736] [2023-08-31 23:42:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:01,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 23:42:01,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 23:42:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 23:42:01,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2023-08-31 23:42:01,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:01,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2023-08-31 23:42:01,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:01,688 INFO L130 PetriNetUnfolder]: 139/267 cut-off events. [2023-08-31 23:42:01,688 INFO L131 PetriNetUnfolder]: For 270/273 co-relation queries the response was YES. [2023-08-31 23:42:01,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 267 events. 139/267 cut-off events. For 270/273 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1062 event pairs, 22 based on Foata normal form. 19/281 useless extension candidates. Maximal degree in co-relation 741. Up to 102 conditions per place. [2023-08-31 23:42:01,690 INFO L137 encePairwiseOnDemand]: 178/184 looper letters, 30 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2023-08-31 23:42:01,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 39 transitions, 223 flow [2023-08-31 23:42:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 23:42:01,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 23:42:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2023-08-31 23:42:01,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5027173913043478 [2023-08-31 23:42:01,691 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 370 transitions. [2023-08-31 23:42:01,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 370 transitions. [2023-08-31 23:42:01,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:01,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 370 transitions. [2023-08-31 23:42:01,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,693 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,693 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 87 flow. Second operand 4 states and 370 transitions. [2023-08-31 23:42:01,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 39 transitions, 223 flow [2023-08-31 23:42:01,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 208 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-31 23:42:01,696 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 114 flow [2023-08-31 23:42:01,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-08-31 23:42:01,697 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-08-31 23:42:01,697 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 114 flow [2023-08-31 23:42:01,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:01,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:01,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 23:42:01,698 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:01,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:01,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1110029010, now seen corresponding path program 1 times [2023-08-31 23:42:01,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:01,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673570029] [2023-08-31 23:42:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:01,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:01,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673570029] [2023-08-31 23:42:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673570029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:01,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:42:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045100971] [2023-08-31 23:42:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:01,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:42:01,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:42:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:42:01,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2023-08-31 23:42:01,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:01,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2023-08-31 23:42:01,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:01,928 INFO L130 PetriNetUnfolder]: 109/230 cut-off events. [2023-08-31 23:42:01,929 INFO L131 PetriNetUnfolder]: For 327/348 co-relation queries the response was YES. [2023-08-31 23:42:01,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 230 events. 109/230 cut-off events. For 327/348 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 914 event pairs, 20 based on Foata normal form. 26/251 useless extension candidates. Maximal degree in co-relation 755. Up to 97 conditions per place. [2023-08-31 23:42:01,930 INFO L137 encePairwiseOnDemand]: 178/184 looper letters, 33 selfloop transitions, 8 changer transitions 0/45 dead transitions. [2023-08-31 23:42:01,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 279 flow [2023-08-31 23:42:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:42:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:42:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 461 transitions. [2023-08-31 23:42:01,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010869565217392 [2023-08-31 23:42:01,932 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 461 transitions. [2023-08-31 23:42:01,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 461 transitions. [2023-08-31 23:42:01,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:01,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 461 transitions. [2023-08-31 23:42:01,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,934 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,934 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 114 flow. Second operand 5 states and 461 transitions. [2023-08-31 23:42:01,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 279 flow [2023-08-31 23:42:01,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 23:42:01,936 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 166 flow [2023-08-31 23:42:01,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=166, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2023-08-31 23:42:01,937 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-31 23:42:01,937 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 166 flow [2023-08-31 23:42:01,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:01,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:01,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:01,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 23:42:01,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:01,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:01,938 INFO L85 PathProgramCache]: Analyzing trace with hash 433975748, now seen corresponding path program 1 times [2023-08-31 23:42:01,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:01,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925035530] [2023-08-31 23:42:01,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:01,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:02,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:02,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925035530] [2023-08-31 23:42:02,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925035530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:02,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:02,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 23:42:02,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022249340] [2023-08-31 23:42:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:02,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:42:02,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:42:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:42:02,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2023-08-31 23:42:02,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:02,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2023-08-31 23:42:02,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:02,174 INFO L130 PetriNetUnfolder]: 98/210 cut-off events. [2023-08-31 23:42:02,174 INFO L131 PetriNetUnfolder]: For 585/629 co-relation queries the response was YES. [2023-08-31 23:42:02,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 210 events. 98/210 cut-off events. For 585/629 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 830 event pairs, 20 based on Foata normal form. 30/235 useless extension candidates. Maximal degree in co-relation 811. Up to 86 conditions per place. [2023-08-31 23:42:02,175 INFO L137 encePairwiseOnDemand]: 178/184 looper letters, 26 selfloop transitions, 11 changer transitions 0/41 dead transitions. [2023-08-31 23:42:02,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 292 flow [2023-08-31 23:42:02,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 23:42:02,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 23:42:02,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 541 transitions. [2023-08-31 23:42:02,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.490036231884058 [2023-08-31 23:42:02,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 541 transitions. [2023-08-31 23:42:02,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 541 transitions. [2023-08-31 23:42:02,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:02,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 541 transitions. [2023-08-31 23:42:02,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,180 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,180 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 166 flow. Second operand 6 states and 541 transitions. [2023-08-31 23:42:02,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 292 flow [2023-08-31 23:42:02,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 275 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-08-31 23:42:02,182 INFO L231 Difference]: Finished difference. Result has 47 places, 29 transitions, 194 flow [2023-08-31 23:42:02,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=47, PETRI_TRANSITIONS=29} [2023-08-31 23:42:02,183 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2023-08-31 23:42:02,183 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 29 transitions, 194 flow [2023-08-31 23:42:02,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:02,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:02,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 23:42:02,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:02,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1662899428, now seen corresponding path program 1 times [2023-08-31 23:42:02,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:02,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037461050] [2023-08-31 23:42:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:02,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:02,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:02,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037461050] [2023-08-31 23:42:02,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037461050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:02,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:02,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:42:02,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049122429] [2023-08-31 23:42:02,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:02,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:42:02,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:02,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:42:02,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:42:02,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 184 [2023-08-31 23:42:02,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 29 transitions, 194 flow. Second operand has 5 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) [2023-08-31 23:42:02,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:02,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 184 [2023-08-31 23:42:02,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:02,354 INFO L130 PetriNetUnfolder]: 141/310 cut-off events. [2023-08-31 23:42:02,354 INFO L131 PetriNetUnfolder]: For 1098/1106 co-relation queries the response was YES. [2023-08-31 23:42:02,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1304 conditions, 310 events. 141/310 cut-off events. For 1098/1106 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1421 event pairs, 23 based on Foata normal form. 2/310 useless extension candidates. Maximal degree in co-relation 1291. Up to 168 conditions per place. [2023-08-31 23:42:02,355 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 25 selfloop transitions, 1 changer transitions 29/57 dead transitions. [2023-08-31 23:42:02,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 57 transitions, 515 flow [2023-08-31 23:42:02,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:42:02,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:42:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2023-08-31 23:42:02,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4967391304347826 [2023-08-31 23:42:02,357 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 457 transitions. [2023-08-31 23:42:02,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 457 transitions. [2023-08-31 23:42:02,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:02,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 457 transitions. [2023-08-31 23:42:02,358 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) [2023-08-31 23:42:02,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,359 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,359 INFO L175 Difference]: Start difference. First operand has 47 places, 29 transitions, 194 flow. Second operand 5 states and 457 transitions. [2023-08-31 23:42:02,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 57 transitions, 515 flow [2023-08-31 23:42:02,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 463 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-31 23:42:02,363 INFO L231 Difference]: Finished difference. Result has 51 places, 24 transitions, 150 flow [2023-08-31 23:42:02,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=150, PETRI_PLACES=51, PETRI_TRANSITIONS=24} [2023-08-31 23:42:02,365 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2023-08-31 23:42:02,365 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 24 transitions, 150 flow [2023-08-31 23:42:02,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2023-08-31 23:42:02,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:42:02,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:02,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 23:42:02,366 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-31 23:42:02,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:42:02,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1305885866, now seen corresponding path program 2 times [2023-08-31 23:42:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:42:02,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200867461] [2023-08-31 23:42:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:42:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:42:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:42:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:42:02,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:42:02,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200867461] [2023-08-31 23:42:02,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200867461] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:42:02,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:42:02,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:42:02,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536918953] [2023-08-31 23:42:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:42:02,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:42:02,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:42:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:42:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:42:02,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 184 [2023-08-31 23:42:02,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 24 transitions, 150 flow. Second operand has 5 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) [2023-08-31 23:42:02,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:42:02,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 184 [2023-08-31 23:42:02,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:42:02,552 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-08-31 23:42:02,552 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2023-08-31 23:42:02,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 92 events. 37/92 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 220 event pairs, 9 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 348. Up to 45 conditions per place. [2023-08-31 23:42:02,552 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-31 23:42:02,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 30 transitions, 245 flow [2023-08-31 23:42:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:42:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:42:02,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 446 transitions. [2023-08-31 23:42:02,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48478260869565215 [2023-08-31 23:42:02,553 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 446 transitions. [2023-08-31 23:42:02,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 446 transitions. [2023-08-31 23:42:02,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:42:02,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 446 transitions. [2023-08-31 23:42:02,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,556 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:42:02,556 INFO L175 Difference]: Start difference. First operand has 51 places, 24 transitions, 150 flow. Second operand 5 states and 446 transitions. [2023-08-31 23:42:02,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 30 transitions, 245 flow [2023-08-31 23:42:02,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 162 flow, removed 10 selfloop flow, removed 14 redundant places. [2023-08-31 23:42:02,557 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-08-31 23:42:02,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-08-31 23:42:02,558 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-08-31 23:42:02,558 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-08-31 23:42:02,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2023-08-31 23:42:02,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-31 23:42:02,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-31 23:42:02,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-31 23:42:02,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-31 23:42:02,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-31 23:42:02,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-31 23:42:02,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-31 23:42:02,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-31 23:42:02,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-31 23:42:02,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-31 23:42:02,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-31 23:42:02,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 23:42:02,565 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:42:02,567 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 23:42:02,567 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 23:42:02,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 11:42:02 BasicIcfg [2023-08-31 23:42:02,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 23:42:02,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 23:42:02,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 23:42:02,570 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 23:42:02,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:41:58" (3/4) ... [2023-08-31 23:42:02,572 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 23:42:02,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-31 23:42:02,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-31 23:42:02,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-31 23:42:02,579 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 23:42:02,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 23:42:02,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 23:42:02,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 23:42:02,611 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 23:42:02,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 23:42:02,611 INFO L158 Benchmark]: Toolchain (without parser) took 5324.37ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 58.4MB in the beginning and 120.4MB in the end (delta: -61.9MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2023-08-31 23:42:02,611 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 23:42:02,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.20ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 38.2MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 23:42:02,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.92ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 36.2MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 23:42:02,612 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 81.8MB. Free memory was 36.2MB in the beginning and 34.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 23:42:02,612 INFO L158 Benchmark]: RCFGBuilder took 295.72ms. Allocated memory is still 81.8MB. Free memory was 34.5MB in the beginning and 51.3MB in the end (delta: -16.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-08-31 23:42:02,612 INFO L158 Benchmark]: TraceAbstraction took 4486.17ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 50.6MB in the beginning and 45.6MB in the end (delta: 5.0MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2023-08-31 23:42:02,612 INFO L158 Benchmark]: Witness Printer took 41.13ms. Allocated memory is still 144.7MB. Free memory was 45.6MB in the beginning and 120.4MB in the end (delta: -74.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-08-31 23:42:02,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.20ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 38.2MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.92ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 36.2MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 81.8MB. Free memory was 36.2MB in the beginning and 34.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.72ms. Allocated memory is still 81.8MB. Free memory was 34.5MB in the beginning and 51.3MB in the end (delta: -16.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4486.17ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 50.6MB in the beginning and 45.6MB in the end (delta: 5.0MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Witness Printer took 41.13ms. Allocated memory is still 144.7MB. Free memory was 45.6MB in the beginning and 120.4MB in the end (delta: -74.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 97 PlacesBefore, 35 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 3015 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1954, independent: 1864, independent conditional: 0, independent unconditional: 1864, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 841, independent: 818, independent conditional: 0, independent unconditional: 818, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1954, independent: 1046, independent conditional: 0, independent unconditional: 1046, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 841, unknown conditional: 0, unknown unconditional: 841] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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, 119 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: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 410 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 327 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 721 IncrementalHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 29 mSDtfsCounter, 721 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred 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, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 620 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! [2023-08-31 23:42:02,638 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