./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.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 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:34:54,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:34:54,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:34:54,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:34:54,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:34:55,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:34:55,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:34:55,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:34:55,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:34:55,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:34:55,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:34:55,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:34:55,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:34:55,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:34:55,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:34:55,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:34:55,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:34:55,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:34:55,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:34:55,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:34:55,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:34:55,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:34:55,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:34:55,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:34:55,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:34:55,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:34:55,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:34:55,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:34:55,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:34:55,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:34:55,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:34:55,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:34:55,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:34:55,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:34:55,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:34:55,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:34:55,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:34:55,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:34:55,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:34:55,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:34:55,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:34:55,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:34:55,091 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:34:55,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:34:55,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:34:55,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:34:55,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:34:55,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:34:55,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:34:55,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:34:55,095 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:34:55,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:34:55,096 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:34:55,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:34:55,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:34:55,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:34:55,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:34:55,096 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:34:55,097 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:34:55,097 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:34:55,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:34:55,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:34:55,097 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:34:55,098 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:34:55,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:34:55,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:34:55,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:34:55,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:34:55,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:34:55,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:34:55,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:34:55,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:34:55,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:34:55,099 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:34:55,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:34:55,100 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:34:55,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:34:55,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:34:55,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:34:55,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:34:55,466 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:34:55,467 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:34:55,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-08-29 21:34:56,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:34:56,941 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:34:56,945 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-08-29 21:34:56,960 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16685c453/97b9d4e37e21451d93f05195051965f3/FLAG610f510ff [2023-08-29 21:34:56,980 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16685c453/97b9d4e37e21451d93f05195051965f3 [2023-08-29 21:34:56,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:34:56,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:34:56,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:34:56,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:34:56,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:34:56,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:34:56" (1/1) ... [2023-08-29 21:34:56,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0e9840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:56, skipping insertion in model container [2023-08-29 21:34:56,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:34:56" (1/1) ... [2023-08-29 21:34:56,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:34:57,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:34:57,181 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-08-29 21:34:57,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:34:57,352 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:34:57,366 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-08-29 21:34:57,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:34:57,473 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:34:57,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57 WrapperNode [2023-08-29 21:34:57,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:34:57,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:34:57,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:34:57,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:34:57,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,538 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-08-29 21:34:57,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:34:57,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:34:57,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:34:57,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:34:57,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:34:57,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:34:57,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:34:57,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:34:57,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (1/1) ... [2023-08-29 21:34:57,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:34:57,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:34:57,622 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) [2023-08-29 21:34:57,643 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 [2023-08-29 21:34:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 21:34:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:34:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:34:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:34:57,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:34:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:34:57,659 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:34:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:34:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:34:57,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:34:57,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:34:57,661 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:34:57,760 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:34:57,762 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:34:58,016 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:34:58,022 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:34:58,022 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:34:58,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:58 BoogieIcfgContainer [2023-08-29 21:34:58,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:34:58,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:34:58,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:34:58,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:34:58,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:34:56" (1/3) ... [2023-08-29 21:34:58,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3613ff79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:34:58, skipping insertion in model container [2023-08-29 21:34:58,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:57" (2/3) ... [2023-08-29 21:34:58,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3613ff79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:34:58, skipping insertion in model container [2023-08-29 21:34:58,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:58" (3/3) ... [2023-08-29 21:34:58,046 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2023-08-29 21:34:58,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:34:58,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-29 21:34:58,063 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:34:58,166 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 21:34:58,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 176 flow [2023-08-29 21:34:58,268 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2023-08-29 21:34:58,274 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:58,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 83 events. 2/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-29 21:34:58,279 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 84 transitions, 176 flow [2023-08-29 21:34:58,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 164 flow [2023-08-29 21:34:58,288 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:34:58,302 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 79 transitions, 164 flow [2023-08-29 21:34:58,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 79 transitions, 164 flow [2023-08-29 21:34:58,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 164 flow [2023-08-29 21:34:58,324 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2023-08-29 21:34:58,324 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:58,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 2/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-29 21:34:58,325 INFO L119 LiptonReduction]: Number of co-enabled transitions 532 [2023-08-29 21:35:01,622 INFO L134 LiptonReduction]: Checked pairs total: 2488 [2023-08-29 21:35:01,622 INFO L136 LiptonReduction]: Total number of compositions: 79 [2023-08-29 21:35:01,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:35:01,638 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;@58cc4e90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:35:01,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 21:35:01,640 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:35:01,640 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:35:01,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:01,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:35:01,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:01,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:01,645 INFO L85 PathProgramCache]: Analyzing trace with hash 299, now seen corresponding path program 1 times [2023-08-29 21:35:01,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600001122] [2023-08-29 21:35:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:01,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:01,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:01,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600001122] [2023-08-29 21:35:01,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600001122] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:01,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:01,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:35:01,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349584350] [2023-08-29 21:35:01,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:01,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:35:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:01,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:35:01,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:35:01,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 163 [2023-08-29 21:35:01,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:01,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:01,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 163 [2023-08-29 21:35:01,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:01,810 INFO L130 PetriNetUnfolder]: 32/92 cut-off events. [2023-08-29 21:35:01,811 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:35:01,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 92 events. 32/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 319 event pairs, 32 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 164. Up to 81 conditions per place. [2023-08-29 21:35:01,813 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 16 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-08-29 21:35:01,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 78 flow [2023-08-29 21:35:01,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:35:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:35:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 176 transitions. [2023-08-29 21:35:01,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398773006134969 [2023-08-29 21:35:01,828 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 176 transitions. [2023-08-29 21:35:01,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 176 transitions. [2023-08-29 21:35:01,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:01,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 176 transitions. [2023-08-29 21:35:01,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:01,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:01,844 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:01,846 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 56 flow. Second operand 2 states and 176 transitions. [2023-08-29 21:35:01,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 78 flow [2023-08-29 21:35:01,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:01,851 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 42 flow [2023-08-29 21:35:01,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-08-29 21:35:01,858 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -5 predicate places. [2023-08-29 21:35:01,858 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 42 flow [2023-08-29 21:35:01,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:01,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:01,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:35:01,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:35:01,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:01,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:01,867 INFO L85 PathProgramCache]: Analyzing trace with hash 285814763, now seen corresponding path program 1 times [2023-08-29 21:35:01,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:01,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141454201] [2023-08-29 21:35:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:01,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:02,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:02,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141454201] [2023-08-29 21:35:02,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141454201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:02,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:02,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610142595] [2023-08-29 21:35:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:02,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:02,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 163 [2023-08-29 21:35:02,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:02,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 163 [2023-08-29 21:35:02,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:02,125 INFO L130 PetriNetUnfolder]: 43/119 cut-off events. [2023-08-29 21:35:02,125 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:35:02,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 119 events. 43/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 400 event pairs, 29 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 226. Up to 73 conditions per place. [2023-08-29 21:35:02,127 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 22 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-29 21:35:02,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 106 flow [2023-08-29 21:35:02,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-29 21:35:02,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5132924335378323 [2023-08-29 21:35:02,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-29 21:35:02,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-29 21:35:02,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:02,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-29 21:35:02,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,133 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 42 flow. Second operand 3 states and 251 transitions. [2023-08-29 21:35:02,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 106 flow [2023-08-29 21:35:02,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:35:02,135 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 53 flow [2023-08-29 21:35:02,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-29 21:35:02,136 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-08-29 21:35:02,136 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 53 flow [2023-08-29 21:35:02,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:02,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:02,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:35:02,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:02,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:02,138 INFO L85 PathProgramCache]: Analyzing trace with hash -209930381, now seen corresponding path program 1 times [2023-08-29 21:35:02,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:02,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883419385] [2023-08-29 21:35:02,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:02,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883419385] [2023-08-29 21:35:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883419385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:02,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:02,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:02,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011960127] [2023-08-29 21:35:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:02,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:02,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:02,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:02,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:02,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 163 [2023-08-29 21:35:02,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:02,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 163 [2023-08-29 21:35:02,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:02,310 INFO L130 PetriNetUnfolder]: 25/80 cut-off events. [2023-08-29 21:35:02,310 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2023-08-29 21:35:02,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 80 events. 25/80 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 262 event pairs, 25 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 160. Up to 65 conditions per place. [2023-08-29 21:35:02,311 INFO L137 encePairwiseOnDemand]: 160/163 looper letters, 13 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-08-29 21:35:02,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 81 flow [2023-08-29 21:35:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2023-08-29 21:35:02,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4621676891615542 [2023-08-29 21:35:02,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2023-08-29 21:35:02,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2023-08-29 21:35:02,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:02,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2023-08-29 21:35:02,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,318 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 53 flow. Second operand 3 states and 226 transitions. [2023-08-29 21:35:02,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 81 flow [2023-08-29 21:35:02,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 75 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:02,319 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 49 flow [2023-08-29 21:35:02,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-08-29 21:35:02,320 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-08-29 21:35:02,320 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 49 flow [2023-08-29 21:35:02,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:02,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:02,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 21:35:02,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:02,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:02,322 INFO L85 PathProgramCache]: Analyzing trace with hash -209930380, now seen corresponding path program 1 times [2023-08-29 21:35:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:02,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800949494] [2023-08-29 21:35:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:02,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:02,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:02,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800949494] [2023-08-29 21:35:02,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800949494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:02,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:02,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:02,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458745941] [2023-08-29 21:35:02,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:02,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:02,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:02,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:02,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:02,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 163 [2023-08-29 21:35:02,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:02,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 163 [2023-08-29 21:35:02,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:02,464 INFO L130 PetriNetUnfolder]: 21/71 cut-off events. [2023-08-29 21:35:02,464 INFO L131 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2023-08-29 21:35:02,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 71 events. 21/71 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 211 event pairs, 21 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 136. Up to 56 conditions per place. [2023-08-29 21:35:02,466 INFO L137 encePairwiseOnDemand]: 160/163 looper letters, 12 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-08-29 21:35:02,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 75 flow [2023-08-29 21:35:02,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:02,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-08-29 21:35:02,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662576687116564 [2023-08-29 21:35:02,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-08-29 21:35:02,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-08-29 21:35:02,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:02,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-08-29 21:35:02,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,480 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 49 flow. Second operand 3 states and 228 transitions. [2023-08-29 21:35:02,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 75 flow [2023-08-29 21:35:02,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 71 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:02,481 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-08-29 21:35:02,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, 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=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-08-29 21:35:02,483 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2023-08-29 21:35:02,483 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-08-29 21:35:02,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:02,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:02,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 21:35:02,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:02,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2085962420, now seen corresponding path program 1 times [2023-08-29 21:35:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:02,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728692833] [2023-08-29 21:35:02,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:02,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:02,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:02,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728692833] [2023-08-29 21:35:02,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728692833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:02,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:02,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:35:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050844880] [2023-08-29 21:35:02,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:02,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:02,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:02,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 163 [2023-08-29 21:35:02,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:02,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 163 [2023-08-29 21:35:02,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:02,613 INFO L130 PetriNetUnfolder]: 25/85 cut-off events. [2023-08-29 21:35:02,613 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:35:02,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 85 events. 25/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 250 event pairs, 12 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 170. Up to 52 conditions per place. [2023-08-29 21:35:02,614 INFO L137 encePairwiseOnDemand]: 156/163 looper letters, 18 selfloop transitions, 7 changer transitions 0/27 dead transitions. [2023-08-29 21:35:02,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 115 flow [2023-08-29 21:35:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:02,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2023-08-29 21:35:02,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48466257668711654 [2023-08-29 21:35:02,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2023-08-29 21:35:02,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2023-08-29 21:35:02,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:02,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2023-08-29 21:35:02,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,618 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 237 transitions. [2023-08-29 21:35:02,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 115 flow [2023-08-29 21:35:02,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:02,619 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 84 flow [2023-08-29 21:35:02,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-08-29 21:35:02,620 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-08-29 21:35:02,620 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 84 flow [2023-08-29 21:35:02,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:02,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:02,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 21:35:02,621 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:02,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:02,621 INFO L85 PathProgramCache]: Analyzing trace with hash 265558404, now seen corresponding path program 1 times [2023-08-29 21:35:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:02,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253036770] [2023-08-29 21:35:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:02,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:02,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:02,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253036770] [2023-08-29 21:35:02,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253036770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:02,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:02,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:35:02,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903309719] [2023-08-29 21:35:02,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:02,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:35:02,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:35:02,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 21:35:02,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 163 [2023-08-29 21:35:02,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:02,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 163 [2023-08-29 21:35:02,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:02,816 INFO L130 PetriNetUnfolder]: 9/54 cut-off events. [2023-08-29 21:35:02,817 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 21:35:02,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 54 events. 9/54 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 4 based on Foata normal form. 9/63 useless extension candidates. Maximal degree in co-relation 146. Up to 31 conditions per place. [2023-08-29 21:35:02,817 INFO L137 encePairwiseOnDemand]: 156/163 looper letters, 13 selfloop transitions, 9 changer transitions 0/24 dead transitions. [2023-08-29 21:35:02,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 132 flow [2023-08-29 21:35:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:35:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:35:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2023-08-29 21:35:02,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616564417177914 [2023-08-29 21:35:02,820 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 301 transitions. [2023-08-29 21:35:02,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 301 transitions. [2023-08-29 21:35:02,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:02,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 301 transitions. [2023-08-29 21:35:02,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,823 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,823 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 84 flow. Second operand 4 states and 301 transitions. [2023-08-29 21:35:02,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 132 flow [2023-08-29 21:35:02,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 123 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 21:35:02,825 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 89 flow [2023-08-29 21:35:02,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-08-29 21:35:02,826 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-08-29 21:35:02,826 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 89 flow [2023-08-29 21:35:02,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:02,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:02,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:02,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 21:35:02,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:02,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:02,828 INFO L85 PathProgramCache]: Analyzing trace with hash 49412850, now seen corresponding path program 2 times [2023-08-29 21:35:02,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:02,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446814198] [2023-08-29 21:35:02,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:02,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:02,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:02,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446814198] [2023-08-29 21:35:02,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446814198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:02,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:02,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:35:02,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822961912] [2023-08-29 21:35:02,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:02,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:35:02,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:02,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:35:02,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:35:03,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 163 [2023-08-29 21:35:03,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:03,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 163 [2023-08-29 21:35:03,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:03,051 INFO L130 PetriNetUnfolder]: 4/40 cut-off events. [2023-08-29 21:35:03,051 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 21:35:03,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 40 events. 4/40 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 1 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 115. Up to 22 conditions per place. [2023-08-29 21:35:03,052 INFO L137 encePairwiseOnDemand]: 158/163 looper letters, 13 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-29 21:35:03,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 117 flow [2023-08-29 21:35:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:35:03,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:35:03,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2023-08-29 21:35:03,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.450920245398773 [2023-08-29 21:35:03,054 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 294 transitions. [2023-08-29 21:35:03,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 294 transitions. [2023-08-29 21:35:03,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:03,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 294 transitions. [2023-08-29 21:35:03,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,057 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 163.0) internal successors, (815), 5 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,058 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 89 flow. Second operand 4 states and 294 transitions. [2023-08-29 21:35:03,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 117 flow [2023-08-29 21:35:03,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 102 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-29 21:35:03,061 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 73 flow [2023-08-29 21:35:03,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2023-08-29 21:35:03,061 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-08-29 21:35:03,062 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 73 flow [2023-08-29 21:35:03,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:03,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:03,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 21:35:03,063 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-29 21:35:03,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1188133531, now seen corresponding path program 1 times [2023-08-29 21:35:03,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:03,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178792851] [2023-08-29 21:35:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:03,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:03,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:03,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178792851] [2023-08-29 21:35:03,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178792851] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:03,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:03,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288651955] [2023-08-29 21:35:03,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:03,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:03,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:03,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:03,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:03,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 163 [2023-08-29 21:35:03,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:03,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 163 [2023-08-29 21:35:03,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:03,265 INFO L130 PetriNetUnfolder]: 4/39 cut-off events. [2023-08-29 21:35:03,266 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 21:35:03,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 39 events. 4/39 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 104. Up to 29 conditions per place. [2023-08-29 21:35:03,266 INFO L137 encePairwiseOnDemand]: 161/163 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-29 21:35:03,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 97 flow [2023-08-29 21:35:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-08-29 21:35:03,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48057259713701433 [2023-08-29 21:35:03,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-08-29 21:35:03,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-08-29 21:35:03,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:03,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-08-29 21:35:03,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,270 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 73 flow. Second operand 3 states and 235 transitions. [2023-08-29 21:35:03,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 97 flow [2023-08-29 21:35:03,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:03,272 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-08-29 21:35:03,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-08-29 21:35:03,274 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-08-29 21:35:03,274 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-08-29 21:35:03,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:03,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-29 21:35:03,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-29 21:35:03,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-29 21:35:03,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2023-08-29 21:35:03,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-29 21:35:03,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2023-08-29 21:35:03,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2023-08-29 21:35:03,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-08-29 21:35:03,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 21:35:03,287 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:03,290 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:35:03,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:35:03,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:35:03 BasicIcfg [2023-08-29 21:35:03,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:35:03,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:35:03,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:35:03,296 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:35:03,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:58" (3/4) ... [2023-08-29 21:35:03,299 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:35:03,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:35:03,309 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-29 21:35:03,309 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 21:35:03,309 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:35:03,310 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 21:35:03,352 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:35:03,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:35:03,353 INFO L158 Benchmark]: Toolchain (without parser) took 6370.03ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 43.6MB in the beginning and 52.8MB in the end (delta: -9.2MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,353 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:35:03,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.73ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 43.4MB in the beginning and 60.6MB in the end (delta: -17.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.81ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,353 INFO L158 Benchmark]: Boogie Preprocessor took 47.35ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 57.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,354 INFO L158 Benchmark]: RCFGBuilder took 436.48ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 43.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,354 INFO L158 Benchmark]: TraceAbstraction took 5269.91ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 42.6MB in the beginning and 56.0MB in the end (delta: -13.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,354 INFO L158 Benchmark]: Witness Printer took 56.28ms. Allocated memory is still 107.0MB. Free memory was 56.0MB in the beginning and 52.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:35:03,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.73ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 43.4MB in the beginning and 60.6MB in the end (delta: -17.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.81ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.35ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 57.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 436.48ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 43.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5269.91ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 42.6MB in the beginning and 56.0MB in the end (delta: -13.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 56.28ms. Allocated memory is still 107.0MB. Free memory was 56.0MB in the beginning and 52.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 81 PlacesBefore, 28 PlacesAfterwards, 79 TransitionsBefore, 25 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 8 FixpointIterations, 53 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 79 TotalNumberOfCompositions, 2488 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 883, independent: 666, independent conditional: 0, independent unconditional: 666, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 291, independent: 261, independent conditional: 0, independent unconditional: 261, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 883, independent: 405, independent conditional: 0, independent unconditional: 405, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 291, unknown conditional: 0, unknown unconditional: 291] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: 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: 19]: 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: 695]: 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 3 procedures, 99 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 41 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=6, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2023-08-29 21:35:03,382 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