./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi000_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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 02:59:50,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 02:59:50,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 02:59:50,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 02:59:50,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 02:59:50,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 02:59:50,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 02:59:50,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 02:59:50,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 02:59:50,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 02:59:50,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 02:59:50,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 02:59:50,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 02:59:50,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 02:59:50,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 02:59:50,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 02:59:50,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 02:59:50,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 02:59:50,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 02:59:50,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 02:59:50,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 02:59:50,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 02:59:50,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 02:59:50,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 02:59:50,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 02:59:50,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 02:59:50,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 02:59:50,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 02:59:50,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 02:59:50,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 02:59:50,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 02:59:50,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 02:59:50,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 02:59:50,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 02:59:50,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 02:59:50,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 02:59:50,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 02:59:50,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 02:59:50,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 02:59:50,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 02:59:50,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 02:59:50,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 02:59:50,149 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 02:59:50,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 02:59:50,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 02:59:50,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 02:59:50,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 02:59:50,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 02:59:50,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 02:59:50,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 02:59:50,153 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 02:59:50,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 02:59:50,153 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 02:59:50,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 02:59:50,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 02:59:50,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 02:59:50,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 02:59:50,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 02:59:50,155 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 02:59:50,155 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 02:59:50,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 02:59:50,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 02:59:50,156 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 02:59:50,156 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 02:59:50,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 02:59:50,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 02:59:50,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 02:59:50,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 02:59:50,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 02:59:50,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 02:59:50,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 02:59:50,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 02:59:50,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 02:59:50,158 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 02:59:50,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 02:59:50,159 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 02:59:50,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 02:59:50,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 02:59:50,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 02:59:50,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 02:59:50,525 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 02:59:50,526 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 02:59:50,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-08-30 02:59:51,827 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 02:59:52,136 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 02:59:52,137 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-08-30 02:59:52,161 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1886d4d/16375e119e0b481d86be493324c8de55/FLAG711e669d3 [2023-08-30 02:59:52,175 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad1886d4d/16375e119e0b481d86be493324c8de55 [2023-08-30 02:59:52,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 02:59:52,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 02:59:52,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 02:59:52,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 02:59:52,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 02:59:52,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a897ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52, skipping insertion in model container [2023-08-30 02:59:52,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 02:59:52,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 02:59:52,394 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/rfi000_tso.i[944,957] [2023-08-30 02:59:52,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 02:59:52,595 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 02:59:52,605 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/rfi000_tso.i[944,957] [2023-08-30 02:59:52,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 02:59:52,704 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 02:59:52,705 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 02:59:52,710 INFO L208 MainTranslator]: Completed translation [2023-08-30 02:59:52,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52 WrapperNode [2023-08-30 02:59:52,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 02:59:52,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 02:59:52,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 02:59:52,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 02:59:52,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,768 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-08-30 02:59:52,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 02:59:52,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 02:59:52,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 02:59:52,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 02:59:52,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 02:59:52,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 02:59:52,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 02:59:52,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 02:59:52,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (1/1) ... [2023-08-30 02:59:52,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 02:59:52,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 02:59:52,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 02:59:52,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 02:59:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 02:59:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 02:59:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 02:59:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 02:59:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 02:59:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 02:59:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 02:59:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 02:59:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 02:59:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 02:59:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 02:59:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 02:59:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 02:59:52,892 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 02:59:52,995 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 02:59:52,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 02:59:53,473 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 02:59:53,673 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 02:59:53,673 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 02:59:53,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:59:53 BoogieIcfgContainer [2023-08-30 02:59:53,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 02:59:53,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 02:59:53,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 02:59:53,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 02:59:53,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:59:52" (1/3) ... [2023-08-30 02:59:53,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5412327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:59:53, skipping insertion in model container [2023-08-30 02:59:53,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:59:52" (2/3) ... [2023-08-30 02:59:53,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5412327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:59:53, skipping insertion in model container [2023-08-30 02:59:53,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:59:53" (3/3) ... [2023-08-30 02:59:53,683 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-08-30 02:59:53,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 02:59:53,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-30 02:59:53,700 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 02:59:53,751 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 02:59:53,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2023-08-30 02:59:53,847 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2023-08-30 02:59:53,848 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 02:59:53,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-08-30 02:59:53,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 98 transitions, 206 flow [2023-08-30 02:59:53,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 96 transitions, 198 flow [2023-08-30 02:59:53,864 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 02:59:53,881 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 96 transitions, 198 flow [2023-08-30 02:59:53,883 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 96 transitions, 198 flow [2023-08-30 02:59:53,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 198 flow [2023-08-30 02:59:53,920 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2023-08-30 02:59:53,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 02:59:53,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-08-30 02:59:53,923 INFO L119 LiptonReduction]: Number of co-enabled transitions 1286 [2023-08-30 02:59:57,637 INFO L134 LiptonReduction]: Checked pairs total: 4279 [2023-08-30 02:59:57,637 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-30 02:59:57,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 02:59:57,667 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;@72dee3c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 02:59:57,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 02:59:57,669 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 02:59:57,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 02:59:57,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 02:59:57,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 02:59:57,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 02:59:57,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 02:59:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash 504, now seen corresponding path program 1 times [2023-08-30 02:59:57,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 02:59:57,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309972618] [2023-08-30 02:59:57,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 02:59:57,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 02:59:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 02:59:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 02:59:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 02:59:57,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309972618] [2023-08-30 02:59:57,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309972618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 02:59:57,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 02:59:57,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 02:59:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236731787] [2023-08-30 02:59:57,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 02:59:57,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 02:59:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 02:59:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 02:59:57,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 02:59:57,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 186 [2023-08-30 02:59:57,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 60 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:57,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 02:59:57,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 186 [2023-08-30 02:59:57,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 02:59:58,086 INFO L130 PetriNetUnfolder]: 391/658 cut-off events. [2023-08-30 02:59:58,086 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 02:59:58,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 658 events. 391/658 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2776 event pairs, 391 based on Foata normal form. 32/561 useless extension candidates. Maximal degree in co-relation 1318. Up to 657 conditions per place. [2023-08-30 02:59:58,096 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 21 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-08-30 02:59:58,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 92 flow [2023-08-30 02:59:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 02:59:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 02:59:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-30 02:59:58,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5268817204301075 [2023-08-30 02:59:58,113 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-30 02:59:58,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-30 02:59:58,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 02:59:58,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-30 02:59:58,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,128 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,130 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 60 flow. Second operand 2 states and 196 transitions. [2023-08-30 02:59:58,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 92 flow [2023-08-30 02:59:58,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 02:59:58,134 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 48 flow [2023-08-30 02:59:58,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-08-30 02:59:58,139 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -5 predicate places. [2023-08-30 02:59:58,140 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 48 flow [2023-08-30 02:59:58,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 02:59:58,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 02:59:58,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 02:59:58,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 02:59:58,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 02:59:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1944279382, now seen corresponding path program 1 times [2023-08-30 02:59:58,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 02:59:58,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402137043] [2023-08-30 02:59:58,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 02:59:58,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 02:59:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 02:59:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 02:59:58,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 02:59:58,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402137043] [2023-08-30 02:59:58,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402137043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 02:59:58,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 02:59:58,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 02:59:58,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800344027] [2023-08-30 02:59:58,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 02:59:58,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 02:59:58,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 02:59:58,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 02:59:58,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 02:59:58,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 186 [2023-08-30 02:59:58,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 02:59:58,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 186 [2023-08-30 02:59:58,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 02:59:58,667 INFO L130 PetriNetUnfolder]: 339/574 cut-off events. [2023-08-30 02:59:58,668 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 02:59:58,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 574 events. 339/574 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2372 event pairs, 79 based on Foata normal form. 0/489 useless extension candidates. Maximal degree in co-relation 1156. Up to 421 conditions per place. [2023-08-30 02:59:58,671 INFO L137 encePairwiseOnDemand]: 183/186 looper letters, 24 selfloop transitions, 2 changer transitions 4/31 dead transitions. [2023-08-30 02:59:58,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 31 transitions, 126 flow [2023-08-30 02:59:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 02:59:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 02:59:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2023-08-30 02:59:58,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.507168458781362 [2023-08-30 02:59:58,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2023-08-30 02:59:58,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2023-08-30 02:59:58,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 02:59:58,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2023-08-30 02:59:58,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,683 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 48 flow. Second operand 3 states and 283 transitions. [2023-08-30 02:59:58,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 31 transitions, 126 flow [2023-08-30 02:59:58,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 02:59:58,684 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 46 flow [2023-08-30 02:59:58,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-08-30 02:59:58,685 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-30 02:59:58,685 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 46 flow [2023-08-30 02:59:58,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:58,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 02:59:58,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 02:59:58,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 02:59:58,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 02:59:58,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 02:59:58,687 INFO L85 PathProgramCache]: Analyzing trace with hash 143074765, now seen corresponding path program 1 times [2023-08-30 02:59:58,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 02:59:58,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749780301] [2023-08-30 02:59:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 02:59:58,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 02:59:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 02:59:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 02:59:59,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 02:59:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749780301] [2023-08-30 02:59:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749780301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 02:59:59,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 02:59:59,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 02:59:59,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487197919] [2023-08-30 02:59:59,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 02:59:59,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 02:59:59,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 02:59:59,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 02:59:59,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 02:59:59,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 186 [2023-08-30 02:59:59,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:59,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 02:59:59,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 186 [2023-08-30 02:59:59,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 02:59:59,244 INFO L130 PetriNetUnfolder]: 204/354 cut-off events. [2023-08-30 02:59:59,245 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-30 02:59:59,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 354 events. 204/354 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1258 event pairs, 166 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 738. Up to 348 conditions per place. [2023-08-30 02:59:59,247 INFO L137 encePairwiseOnDemand]: 183/186 looper letters, 18 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2023-08-30 02:59:59,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 90 flow [2023-08-30 02:59:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 02:59:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 02:59:59,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-08-30 02:59:59,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4314516129032258 [2023-08-30 02:59:59,249 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-08-30 02:59:59,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-08-30 02:59:59,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 02:59:59,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-08-30 02:59:59,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:59,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:59,253 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:59,253 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 46 flow. Second operand 4 states and 321 transitions. [2023-08-30 02:59:59,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 90 flow [2023-08-30 02:59:59,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 02:59:59,254 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-08-30 02:59:59,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-30 02:59:59,255 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -6 predicate places. [2023-08-30 02:59:59,255 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-08-30 02:59:59,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 02:59:59,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 02:59:59,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 02:59:59,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 02:59:59,262 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 02:59:59,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 02:59:59,262 INFO L85 PathProgramCache]: Analyzing trace with hash 143074706, now seen corresponding path program 1 times [2023-08-30 02:59:59,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 02:59:59,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741085600] [2023-08-30 02:59:59,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 02:59:59,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 02:59:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:00,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:00,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741085600] [2023-08-30 03:00:00,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741085600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:00,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:00,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:00:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959220332] [2023-08-30 03:00:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:00,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:00:00,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:00,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:00:00,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:00:00,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 186 [2023-08-30 03:00:00,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:00,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:00,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 186 [2023-08-30 03:00:00,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:00,636 INFO L130 PetriNetUnfolder]: 259/458 cut-off events. [2023-08-30 03:00:00,637 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 03:00:00,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 458 events. 259/458 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1689 event pairs, 102 based on Foata normal form. 38/496 useless extension candidates. Maximal degree in co-relation 934. Up to 194 conditions per place. [2023-08-30 03:00:00,639 INFO L137 encePairwiseOnDemand]: 178/186 looper letters, 24 selfloop transitions, 6 changer transitions 19/49 dead transitions. [2023-08-30 03:00:00,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 49 transitions, 204 flow [2023-08-30 03:00:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:00:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:00:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 549 transitions. [2023-08-30 03:00:00,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4216589861751152 [2023-08-30 03:00:00,642 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 549 transitions. [2023-08-30 03:00:00,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 549 transitions. [2023-08-30 03:00:00,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:00,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 549 transitions. [2023-08-30 03:00:00,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:00,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:00,647 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:00,647 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 7 states and 549 transitions. [2023-08-30 03:00:00,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 49 transitions, 204 flow [2023-08-30 03:00:00,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:00,648 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 97 flow [2023-08-30 03:00:00,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2023-08-30 03:00:00,649 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-08-30 03:00:00,649 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 97 flow [2023-08-30 03:00:00,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:00,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:00,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:00,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:00:00,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:00,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:00,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1436627916, now seen corresponding path program 1 times [2023-08-30 03:00:00,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:00,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024333312] [2023-08-30 03:00:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:00,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:01,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:01,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024333312] [2023-08-30 03:00:01,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024333312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:01,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:01,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 03:00:01,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847585768] [2023-08-30 03:00:01,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:01,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 03:00:01,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:01,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 03:00:01,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-30 03:00:01,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 186 [2023-08-30 03:00:01,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 97 flow. Second operand has 9 states, 9 states have (on average 73.33333333333333) internal successors, (660), 9 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:01,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:01,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 186 [2023-08-30 03:00:01,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:01,978 INFO L130 PetriNetUnfolder]: 173/325 cut-off events. [2023-08-30 03:00:01,978 INFO L131 PetriNetUnfolder]: For 313/322 co-relation queries the response was YES. [2023-08-30 03:00:01,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 325 events. 173/325 cut-off events. For 313/322 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1175 event pairs, 105 based on Foata normal form. 25/347 useless extension candidates. Maximal degree in co-relation 977. Up to 258 conditions per place. [2023-08-30 03:00:01,981 INFO L137 encePairwiseOnDemand]: 178/186 looper letters, 28 selfloop transitions, 7 changer transitions 10/47 dead transitions. [2023-08-30 03:00:01,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 276 flow [2023-08-30 03:00:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:00:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:00:01,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 547 transitions. [2023-08-30 03:00:01,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4201228878648233 [2023-08-30 03:00:01,983 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 547 transitions. [2023-08-30 03:00:01,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 547 transitions. [2023-08-30 03:00:01,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:01,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 547 transitions. [2023-08-30 03:00:01,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:01,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:01,990 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:01,990 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 97 flow. Second operand 7 states and 547 transitions. [2023-08-30 03:00:01,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 276 flow [2023-08-30 03:00:01,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 269 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:01,995 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 141 flow [2023-08-30 03:00:01,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=141, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2023-08-30 03:00:01,997 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2023-08-30 03:00:01,998 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 141 flow [2023-08-30 03:00:01,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 73.33333333333333) internal successors, (660), 9 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:01,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:01,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:01,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:00:01,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:01,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:02,000 INFO L85 PathProgramCache]: Analyzing trace with hash 153529822, now seen corresponding path program 1 times [2023-08-30 03:00:02,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:02,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762417193] [2023-08-30 03:00:02,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:02,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:02,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:02,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762417193] [2023-08-30 03:00:02,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762417193] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:02,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:02,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:00:02,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892684559] [2023-08-30 03:00:02,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:02,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:02,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:02,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:02,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:02,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 186 [2023-08-30 03:00:02,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:02,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:02,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 186 [2023-08-30 03:00:02,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:02,652 INFO L130 PetriNetUnfolder]: 147/274 cut-off events. [2023-08-30 03:00:02,652 INFO L131 PetriNetUnfolder]: For 289/295 co-relation queries the response was YES. [2023-08-30 03:00:02,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 274 events. 147/274 cut-off events. For 289/295 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 931 event pairs, 58 based on Foata normal form. 10/281 useless extension candidates. Maximal degree in co-relation 956. Up to 243 conditions per place. [2023-08-30 03:00:02,655 INFO L137 encePairwiseOnDemand]: 180/186 looper letters, 28 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2023-08-30 03:00:02,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 245 flow [2023-08-30 03:00:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2023-08-30 03:00:02,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650537634408602 [2023-08-30 03:00:02,657 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 346 transitions. [2023-08-30 03:00:02,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 346 transitions. [2023-08-30 03:00:02,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:02,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 346 transitions. [2023-08-30 03:00:02,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:02,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:02,660 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:02,660 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 141 flow. Second operand 4 states and 346 transitions. [2023-08-30 03:00:02,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 245 flow [2023-08-30 03:00:02,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 233 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-30 03:00:02,664 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 178 flow [2023-08-30 03:00:02,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-08-30 03:00:02,664 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2023-08-30 03:00:02,665 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 178 flow [2023-08-30 03:00:02,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:02,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:02,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:02,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:00:02,666 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:02,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1531017426, now seen corresponding path program 2 times [2023-08-30 03:00:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:02,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047843924] [2023-08-30 03:00:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:02,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:02,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:02,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047843924] [2023-08-30 03:00:02,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047843924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:02,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:02,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:00:02,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638175031] [2023-08-30 03:00:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:02,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:00:02,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:02,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:00:02,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:00:02,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2023-08-30 03:00:02,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:02,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:02,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2023-08-30 03:00:02,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:03,018 INFO L130 PetriNetUnfolder]: 59/139 cut-off events. [2023-08-30 03:00:03,019 INFO L131 PetriNetUnfolder]: For 305/308 co-relation queries the response was YES. [2023-08-30 03:00:03,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 139 events. 59/139 cut-off events. For 305/308 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 406 event pairs, 20 based on Foata normal form. 17/154 useless extension candidates. Maximal degree in co-relation 530. Up to 90 conditions per place. [2023-08-30 03:00:03,020 INFO L137 encePairwiseOnDemand]: 182/186 looper letters, 35 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-08-30 03:00:03,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 298 flow [2023-08-30 03:00:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:00:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:00:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-08-30 03:00:03,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.492831541218638 [2023-08-30 03:00:03,023 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-08-30 03:00:03,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-08-30 03:00:03,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:03,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-08-30 03:00:03,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:03,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:03,025 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:03,025 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 178 flow. Second operand 3 states and 275 transitions. [2023-08-30 03:00:03,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 298 flow [2023-08-30 03:00:03,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 41 transitions, 292 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-30 03:00:03,028 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 190 flow [2023-08-30 03:00:03,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2023-08-30 03:00:03,029 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-08-30 03:00:03,030 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 190 flow [2023-08-30 03:00:03,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:03,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:03,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:03,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:00:03,031 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:03,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1135709544, now seen corresponding path program 1 times [2023-08-30 03:00:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:03,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608235873] [2023-08-30 03:00:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:04,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:04,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608235873] [2023-08-30 03:00:04,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608235873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:04,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:04,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 03:00:04,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848073814] [2023-08-30 03:00:04,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:04,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 03:00:04,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:04,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 03:00:04,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 03:00:04,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 186 [2023-08-30 03:00:04,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 190 flow. Second operand has 10 states, 10 states have (on average 74.5) internal successors, (745), 10 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:04,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:04,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 186 [2023-08-30 03:00:04,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:05,257 INFO L130 PetriNetUnfolder]: 76/182 cut-off events. [2023-08-30 03:00:05,257 INFO L131 PetriNetUnfolder]: For 311/316 co-relation queries the response was YES. [2023-08-30 03:00:05,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 182 events. 76/182 cut-off events. For 311/316 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 638 event pairs, 4 based on Foata normal form. 9/189 useless extension candidates. Maximal degree in co-relation 742. Up to 115 conditions per place. [2023-08-30 03:00:05,259 INFO L137 encePairwiseOnDemand]: 176/186 looper letters, 35 selfloop transitions, 21 changer transitions 4/62 dead transitions. [2023-08-30 03:00:05,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 491 flow [2023-08-30 03:00:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 03:00:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 03:00:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 854 transitions. [2023-08-30 03:00:05,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4173998044965787 [2023-08-30 03:00:05,262 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 854 transitions. [2023-08-30 03:00:05,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 854 transitions. [2023-08-30 03:00:05,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:05,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 854 transitions. [2023-08-30 03:00:05,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.63636363636364) internal successors, (854), 11 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:05,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 186.0) internal successors, (2232), 12 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:05,268 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 186.0) internal successors, (2232), 12 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:05,269 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 190 flow. Second operand 11 states and 854 transitions. [2023-08-30 03:00:05,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 491 flow [2023-08-30 03:00:05,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 473 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 03:00:05,272 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 337 flow [2023-08-30 03:00:05,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=337, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2023-08-30 03:00:05,273 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 26 predicate places. [2023-08-30 03:00:05,274 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 337 flow [2023-08-30 03:00:05,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.5) internal successors, (745), 10 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:05,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:05,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:05,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:00:05,275 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:05,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash -466761292, now seen corresponding path program 2 times [2023-08-30 03:00:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:05,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469927973] [2023-08-30 03:00:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:06,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469927973] [2023-08-30 03:00:06,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469927973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:06,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:06,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 03:00:06,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532859894] [2023-08-30 03:00:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:06,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 03:00:06,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 03:00:06,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 03:00:06,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 186 [2023-08-30 03:00:06,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 337 flow. Second operand has 9 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:06,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:06,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 186 [2023-08-30 03:00:06,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:06,968 INFO L130 PetriNetUnfolder]: 106/254 cut-off events. [2023-08-30 03:00:06,968 INFO L131 PetriNetUnfolder]: For 735/742 co-relation queries the response was YES. [2023-08-30 03:00:06,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 254 events. 106/254 cut-off events. For 735/742 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1074 event pairs, 18 based on Foata normal form. 12/263 useless extension candidates. Maximal degree in co-relation 1177. Up to 101 conditions per place. [2023-08-30 03:00:06,971 INFO L137 encePairwiseOnDemand]: 178/186 looper letters, 45 selfloop transitions, 18 changer transitions 14/79 dead transitions. [2023-08-30 03:00:06,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 79 transitions, 744 flow [2023-08-30 03:00:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:00:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:00:06,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 635 transitions. [2023-08-30 03:00:06,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.426747311827957 [2023-08-30 03:00:06,974 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 635 transitions. [2023-08-30 03:00:06,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 635 transitions. [2023-08-30 03:00:06,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:06,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 635 transitions. [2023-08-30 03:00:06,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.375) internal successors, (635), 8 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:06,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 186.0) internal successors, (1674), 9 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:06,979 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 186.0) internal successors, (1674), 9 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:06,980 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 337 flow. Second operand 8 states and 635 transitions. [2023-08-30 03:00:06,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 79 transitions, 744 flow [2023-08-30 03:00:06,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 79 transitions, 700 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-08-30 03:00:06,986 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 367 flow [2023-08-30 03:00:06,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=367, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2023-08-30 03:00:06,987 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2023-08-30 03:00:06,987 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 367 flow [2023-08-30 03:00:06,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:06,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:06,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:06,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:00:06,988 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:06,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1377209262, now seen corresponding path program 3 times [2023-08-30 03:00:06,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:06,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15025298] [2023-08-30 03:00:06,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:07,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:07,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15025298] [2023-08-30 03:00:07,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15025298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:07,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:07,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:00:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630531874] [2023-08-30 03:00:07,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:07,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:07,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2023-08-30 03:00:07,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:07,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2023-08-30 03:00:07,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:07,338 INFO L130 PetriNetUnfolder]: 41/118 cut-off events. [2023-08-30 03:00:07,338 INFO L131 PetriNetUnfolder]: For 450/452 co-relation queries the response was YES. [2023-08-30 03:00:07,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 118 events. 41/118 cut-off events. For 450/452 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 404 event pairs, 7 based on Foata normal form. 20/135 useless extension candidates. Maximal degree in co-relation 568. Up to 64 conditions per place. [2023-08-30 03:00:07,340 INFO L137 encePairwiseOnDemand]: 182/186 looper letters, 32 selfloop transitions, 5 changer transitions 16/55 dead transitions. [2023-08-30 03:00:07,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 55 transitions, 544 flow [2023-08-30 03:00:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:07,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2023-08-30 03:00:07,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4798387096774194 [2023-08-30 03:00:07,342 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2023-08-30 03:00:07,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2023-08-30 03:00:07,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:07,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2023-08-30 03:00:07,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,345 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,345 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 367 flow. Second operand 4 states and 357 transitions. [2023-08-30 03:00:07,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 55 transitions, 544 flow [2023-08-30 03:00:07,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 471 flow, removed 23 selfloop flow, removed 7 redundant places. [2023-08-30 03:00:07,350 INFO L231 Difference]: Finished difference. Result has 60 places, 32 transitions, 218 flow [2023-08-30 03:00:07,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=60, PETRI_TRANSITIONS=32} [2023-08-30 03:00:07,352 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2023-08-30 03:00:07,352 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 32 transitions, 218 flow [2023-08-30 03:00:07,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:07,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:07,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:00:07,353 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:07,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:07,353 INFO L85 PathProgramCache]: Analyzing trace with hash 250722467, now seen corresponding path program 1 times [2023-08-30 03:00:07,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:07,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371351143] [2023-08-30 03:00:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:07,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:07,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:07,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:07,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371351143] [2023-08-30 03:00:07,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371351143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:07,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:07,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:00:07,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267678673] [2023-08-30 03:00:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:07,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:07,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:07,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:07,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 186 [2023-08-30 03:00:07,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 32 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:07,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 186 [2023-08-30 03:00:07,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:07,689 INFO L130 PetriNetUnfolder]: 28/92 cut-off events. [2023-08-30 03:00:07,689 INFO L131 PetriNetUnfolder]: For 258/258 co-relation queries the response was YES. [2023-08-30 03:00:07,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 92 events. 28/92 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 245 event pairs, 10 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 405. Up to 47 conditions per place. [2023-08-30 03:00:07,690 INFO L137 encePairwiseOnDemand]: 182/186 looper letters, 20 selfloop transitions, 2 changer transitions 25/47 dead transitions. [2023-08-30 03:00:07,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 47 transitions, 403 flow [2023-08-30 03:00:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:07,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-30 03:00:07,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46236559139784944 [2023-08-30 03:00:07,692 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-30 03:00:07,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-30 03:00:07,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:07,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-30 03:00:07,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,695 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,695 INFO L175 Difference]: Start difference. First operand has 60 places, 32 transitions, 218 flow. Second operand 4 states and 344 transitions. [2023-08-30 03:00:07,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 47 transitions, 403 flow [2023-08-30 03:00:07,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 318 flow, removed 21 selfloop flow, removed 12 redundant places. [2023-08-30 03:00:07,698 INFO L231 Difference]: Finished difference. Result has 51 places, 20 transitions, 99 flow [2023-08-30 03:00:07,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=51, PETRI_TRANSITIONS=20} [2023-08-30 03:00:07,699 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2023-08-30 03:00:07,699 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 20 transitions, 99 flow [2023-08-30 03:00:07,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:07,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:07,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:07,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:00:07,700 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:07,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:07,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2100427253, now seen corresponding path program 2 times [2023-08-30 03:00:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113481328] [2023-08-30 03:00:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:09,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:09,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113481328] [2023-08-30 03:00:09,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113481328] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:09,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:09,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 03:00:09,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256072194] [2023-08-30 03:00:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:09,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 03:00:09,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:09,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 03:00:09,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 03:00:09,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 186 [2023-08-30 03:00:09,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 20 transitions, 99 flow. Second operand has 10 states, 10 states have (on average 74.7) internal successors, (747), 10 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:09,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:09,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 186 [2023-08-30 03:00:09,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:09,372 INFO L130 PetriNetUnfolder]: 6/31 cut-off events. [2023-08-30 03:00:09,372 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-30 03:00:09,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 31 events. 6/31 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 109. Up to 8 conditions per place. [2023-08-30 03:00:09,373 INFO L137 encePairwiseOnDemand]: 178/186 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-08-30 03:00:09,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 24 transitions, 166 flow [2023-08-30 03:00:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 03:00:09,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 03:00:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2023-08-30 03:00:09,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4056152927120669 [2023-08-30 03:00:09,375 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2023-08-30 03:00:09,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2023-08-30 03:00:09,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:09,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2023-08-30 03:00:09,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.44444444444444) internal successors, (679), 9 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:09,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 186.0) internal successors, (1860), 10 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:09,379 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 186.0) internal successors, (1860), 10 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:09,379 INFO L175 Difference]: Start difference. First operand has 51 places, 20 transitions, 99 flow. Second operand 9 states and 679 transitions. [2023-08-30 03:00:09,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 24 transitions, 166 flow [2023-08-30 03:00:09,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 24 transitions, 134 flow, removed 5 selfloop flow, removed 13 redundant places. [2023-08-30 03:00:09,381 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-30 03:00:09,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=9, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-30 03:00:09,382 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2023-08-30 03:00:09,382 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-30 03:00:09,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.7) internal successors, (747), 10 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:09,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-08-30 03:00:09,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-08-30 03:00:09,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-08-30 03:00:09,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-08-30 03:00:09,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-08-30 03:00:09,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-08-30 03:00:09,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-08-30 03:00:09,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-08-30 03:00:09,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-08-30 03:00:09,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-08-30 03:00:09,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 03:00:09,388 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 03:00:09,392 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:00:09,393 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:00:09,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:00:09 BasicIcfg [2023-08-30 03:00:09,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:00:09,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:00:09,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:00:09,398 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:00:09,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:59:53" (3/4) ... [2023-08-30 03:00:09,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:00:09,404 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:00:09,405 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:00:09,409 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-08-30 03:00:09,409 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 03:00:09,409 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:00:09,409 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:00:09,445 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:00:09,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:00:09,446 INFO L158 Benchmark]: Toolchain (without parser) took 17267.05ms. Allocated memory was 77.6MB in the beginning and 346.0MB in the end (delta: 268.4MB). Free memory was 55.6MB in the beginning and 299.6MB in the end (delta: -244.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,447 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:00:09,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.17ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 48.3MB in the end (delta: 7.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.27ms. Allocated memory is still 77.6MB. Free memory was 48.3MB in the beginning and 45.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,447 INFO L158 Benchmark]: Boogie Preprocessor took 42.56ms. Allocated memory is still 77.6MB. Free memory was 44.8MB in the beginning and 43.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,448 INFO L158 Benchmark]: RCFGBuilder took 851.13ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 44.8MB in the end (delta: -2.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,448 INFO L158 Benchmark]: TraceAbstraction took 15719.72ms. Allocated memory was 77.6MB in the beginning and 346.0MB in the end (delta: 268.4MB). Free memory was 44.4MB in the beginning and 302.8MB in the end (delta: -258.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,448 INFO L158 Benchmark]: Witness Printer took 48.58ms. Allocated memory is still 346.0MB. Free memory was 302.8MB in the beginning and 299.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:00:09,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.17ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 48.3MB in the end (delta: 7.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.27ms. Allocated memory is still 77.6MB. Free memory was 48.3MB in the beginning and 45.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.56ms. Allocated memory is still 77.6MB. Free memory was 44.8MB in the beginning and 43.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 851.13ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 44.8MB in the end (delta: -2.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15719.72ms. Allocated memory was 77.6MB in the beginning and 346.0MB in the end (delta: 268.4MB). Free memory was 44.4MB in the beginning and 302.8MB in the end (delta: -258.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Witness Printer took 48.58ms. Allocated memory is still 346.0MB. Free memory was 302.8MB in the beginning and 299.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 101 PlacesBefore, 33 PlacesAfterwards, 96 TransitionsBefore, 27 TransitionsAfterwards, 1286 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 4279 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2038, independent: 1848, independent conditional: 0, independent unconditional: 1848, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 710, independent: 673, independent conditional: 0, independent unconditional: 673, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2038, independent: 1175, independent conditional: 0, independent unconditional: 1175, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 710, unknown conditional: 0, unknown unconditional: 710] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 824]: 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 5 procedures, 118 locations, 10 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: 15.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 346 mSDsluCounter, 506 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1464 IncrementalHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 37 mSDtfsCounter, 1464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=367occurred in iteration=9, InterpolantAutomatonStates: 66, 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, 0.5s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 1722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:00:09,483 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