./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_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 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 04:00:50,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:00:50,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:00:50,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:00:50,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:00:50,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:00:50,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:00:50,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:00:50,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:00:50,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:00:50,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:00:50,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:00:50,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:00:50,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:00:50,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:00:50,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:00:50,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:00:50,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:00:50,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:00:50,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:00:50,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:00:50,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:00:50,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:00:50,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:00:50,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:00:50,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:00:50,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:00:50,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:00:50,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:00:50,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:00:50,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:00:50,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:00:50,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:00:50,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:00:50,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:00:50,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:00:50,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:00:50,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:00:50,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:00:50,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:00:50,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:00:50,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:00:50,110 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:00:50,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:00:50,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:00:50,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:00:50,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:00:50,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:00:50,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:00:50,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:00:50,115 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:00:50,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:00:50,116 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:00:50,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:00:50,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:00:50,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:00:50,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:00:50,117 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:00:50,117 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:00:50,117 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:00:50,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:00:50,118 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:00:50,118 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:00:50,118 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:00:50,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:00:50,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:00:50,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:00:50,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:50,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:00:50,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:00:50,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:00:50,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:00:50,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:00:50,120 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:00:50,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:00:50,121 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:00:50,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:00:50,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:00:50,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:00:50,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:00:50,465 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:00:50,465 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:00:50,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-08-30 04:00:51,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:00:52,034 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:00:52,034 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-08-30 04:00:52,051 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499c58108/91253d7839264e9584e741adf3241c2a/FLAG4c8ca75ec [2023-08-30 04:00:52,074 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/499c58108/91253d7839264e9584e741adf3241c2a [2023-08-30 04:00:52,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:00:52,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:00:52,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:52,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:00:52,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:00:52,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec95eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52, skipping insertion in model container [2023-08-30 04:00:52,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:00:52,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:00:52,321 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_36-traces-ex-3_true.i[1088,1101] [2023-08-30 04:00:52,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:52,503 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:00:52,517 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_36-traces-ex-3_true.i[1088,1101] [2023-08-30 04:00:52,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:52,595 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:00:52,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52 WrapperNode [2023-08-30 04:00:52,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:52,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:52,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:00:52,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:00:52,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,656 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-08-30 04:00:52,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:52,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:00:52,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:00:52,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:00:52,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,702 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:00:52,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:00:52,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:00:52,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:00:52,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (1/1) ... [2023-08-30 04:00:52,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:52,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:00:52,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 04:00:52,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 04:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:00:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:00:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:00:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:00:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:00:52,782 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 04:00:52,971 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:00:52,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:00:53,147 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:00:53,153 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:00:53,153 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:00:53,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:53 BoogieIcfgContainer [2023-08-30 04:00:53,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:00:53,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:00:53,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:00:53,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:00:53,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:00:52" (1/3) ... [2023-08-30 04:00:53,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45929b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:53, skipping insertion in model container [2023-08-30 04:00:53,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:52" (2/3) ... [2023-08-30 04:00:53,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45929b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:53, skipping insertion in model container [2023-08-30 04:00:53,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:53" (3/3) ... [2023-08-30 04:00:53,162 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2023-08-30 04:00:53,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:00:53,176 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:00:53,177 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:00:53,215 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:00:53,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 141 flow [2023-08-30 04:00:53,297 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2023-08-30 04:00:53,297 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:53,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 1/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-30 04:00:53,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 68 transitions, 141 flow [2023-08-30 04:00:53,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 63 transitions, 129 flow [2023-08-30 04:00:53,307 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:00:53,319 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 129 flow [2023-08-30 04:00:53,322 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 129 flow [2023-08-30 04:00:53,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 129 flow [2023-08-30 04:00:53,362 INFO L130 PetriNetUnfolder]: 1/63 cut-off events. [2023-08-30 04:00:53,363 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:53,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 04:00:53,364 INFO L119 LiptonReduction]: Number of co-enabled transitions 440 [2023-08-30 04:00:56,198 INFO L134 LiptonReduction]: Checked pairs total: 1368 [2023-08-30 04:00:56,199 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-30 04:00:56,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:00:56,224 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;@2ebcfcf1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:00:56,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:00:56,230 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 04:00:56,231 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:56,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:56,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:00:56,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:56,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash 241, now seen corresponding path program 1 times [2023-08-30 04:00:56,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:56,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235644993] [2023-08-30 04:00:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:56,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:56,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235644993] [2023-08-30 04:00:56,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235644993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:56,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:56,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:00:56,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650063309] [2023-08-30 04:00:56,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:56,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:00:56,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:56,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:00:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:00:56,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 126 [2023-08-30 04:00:56,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:56,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 126 [2023-08-30 04:00:56,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:56,465 INFO L130 PetriNetUnfolder]: 20/63 cut-off events. [2023-08-30 04:00:56,466 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:56,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 63 events. 20/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 185 event pairs, 20 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 110. Up to 52 conditions per place. [2023-08-30 04:00:56,467 INFO L137 encePairwiseOnDemand]: 124/126 looper letters, 11 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-30 04:00:56,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 14 transitions, 53 flow [2023-08-30 04:00:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:00:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:00:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 143 transitions. [2023-08-30 04:00:56,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5674603174603174 [2023-08-30 04:00:56,481 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 143 transitions. [2023-08-30 04:00:56,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 143 transitions. [2023-08-30 04:00:56,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:56,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 143 transitions. [2023-08-30 04:00:56,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,496 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,498 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 2 states and 143 transitions. [2023-08-30 04:00:56,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 14 transitions, 53 flow [2023-08-30 04:00:56,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 52 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:56,503 INFO L231 Difference]: Finished difference. Result has 18 places, 14 transitions, 30 flow [2023-08-30 04:00:56,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=14} [2023-08-30 04:00:56,508 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2023-08-30 04:00:56,508 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 14 transitions, 30 flow [2023-08-30 04:00:56,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:56,509 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:00:56,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:00:56,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:56,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1571750403, now seen corresponding path program 1 times [2023-08-30 04:00:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:56,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450832514] [2023-08-30 04:00:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:56,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:56,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:56,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450832514] [2023-08-30 04:00:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450832514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:56,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:56,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185027970] [2023-08-30 04:00:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:56,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:56,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:56,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:56,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 126 [2023-08-30 04:00:56,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:56,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 126 [2023-08-30 04:00:56,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:56,794 INFO L130 PetriNetUnfolder]: 21/63 cut-off events. [2023-08-30 04:00:56,796 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:56,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 63 events. 21/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 176 event pairs, 13 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 121. Up to 35 conditions per place. [2023-08-30 04:00:56,798 INFO L137 encePairwiseOnDemand]: 122/126 looper letters, 13 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-08-30 04:00:56,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 70 flow [2023-08-30 04:00:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:56,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-08-30 04:00:56,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2023-08-30 04:00:56,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-08-30 04:00:56,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-08-30 04:00:56,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:56,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-08-30 04:00:56,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,804 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 30 flow. Second operand 3 states and 203 transitions. [2023-08-30 04:00:56,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 70 flow [2023-08-30 04:00:56,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 70 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:00:56,805 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 41 flow [2023-08-30 04:00:56,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-08-30 04:00:56,806 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2023-08-30 04:00:56,806 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 41 flow [2023-08-30 04:00:56,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:56,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 04:00:56,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:56,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1479622898, now seen corresponding path program 1 times [2023-08-30 04:00:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:56,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43670332] [2023-08-30 04:00:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:56,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43670332] [2023-08-30 04:00:56,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43670332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007604496] [2023-08-30 04:00:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:56,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:56,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:56,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:56,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 126 [2023-08-30 04:00:56,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:56,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:56,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 126 [2023-08-30 04:00:56,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:56,997 INFO L130 PetriNetUnfolder]: 13/48 cut-off events. [2023-08-30 04:00:56,997 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2023-08-30 04:00:56,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 48 events. 13/48 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 121 event pairs, 13 based on Foata normal form. 5/52 useless extension candidates. Maximal degree in co-relation 103. Up to 37 conditions per place. [2023-08-30 04:00:56,998 INFO L137 encePairwiseOnDemand]: 124/126 looper letters, 8 selfloop transitions, 1 changer transitions 1/13 dead transitions. [2023-08-30 04:00:56,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 59 flow [2023-08-30 04:00:56,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:56,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2023-08-30 04:00:57,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5132275132275133 [2023-08-30 04:00:57,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 194 transitions. [2023-08-30 04:00:57,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 194 transitions. [2023-08-30 04:00:57,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:57,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 194 transitions. [2023-08-30 04:00:57,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,003 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 41 flow. Second operand 3 states and 194 transitions. [2023-08-30 04:00:57,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 59 flow [2023-08-30 04:00:57,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 53 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:57,004 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 33 flow [2023-08-30 04:00:57,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2023-08-30 04:00:57,005 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2023-08-30 04:00:57,006 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 33 flow [2023-08-30 04:00:57,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:57,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:57,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 04:00:57,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:57,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:57,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1373146202, now seen corresponding path program 1 times [2023-08-30 04:00:57,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:57,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48669257] [2023-08-30 04:00:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:57,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:57,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:57,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48669257] [2023-08-30 04:00:57,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48669257] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:57,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:57,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 04:00:57,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853624031] [2023-08-30 04:00:57,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:57,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 04:00:57,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:57,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 04:00:57,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 04:00:57,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 126 [2023-08-30 04:00:57,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 33 flow. Second operand has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:57,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 126 [2023-08-30 04:00:57,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:57,288 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2023-08-30 04:00:57,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:57,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 32 events. 8/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 2 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 64. Up to 17 conditions per place. [2023-08-30 04:00:57,293 INFO L137 encePairwiseOnDemand]: 122/126 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2023-08-30 04:00:57,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 55 flow [2023-08-30 04:00:57,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:57,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2023-08-30 04:00:57,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4781746031746032 [2023-08-30 04:00:57,300 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 241 transitions. [2023-08-30 04:00:57,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 241 transitions. [2023-08-30 04:00:57,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:57,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 241 transitions. [2023-08-30 04:00:57,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,304 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,305 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 33 flow. Second operand 4 states and 241 transitions. [2023-08-30 04:00:57,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 55 flow [2023-08-30 04:00:57,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 51 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:57,309 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-30 04:00:57,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-30 04:00:57,311 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2023-08-30 04:00:57,311 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-30 04:00:57,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:57,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-08-30 04:00:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:00:57,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2023-08-30 04:00:57,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:00:57,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:00:57,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 04:00:57,317 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 04:00:57,321 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:00:57,321 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:00:57,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:00:57 BasicIcfg [2023-08-30 04:00:57,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:00:57,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:00:57,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:00:57,330 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:00:57,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:53" (3/4) ... [2023-08-30 04:00:57,333 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 04:00:57,339 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 04:00:57,343 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-30 04:00:57,344 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 04:00:57,344 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 04:00:57,344 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 04:00:57,381 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 04:00:57,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:00:57,382 INFO L158 Benchmark]: Toolchain (without parser) took 5303.89ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 65.1MB in the beginning and 49.5MB in the end (delta: 15.6MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2023-08-30 04:00:57,383 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:57,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.87ms. Allocated memory is still 86.0MB. Free memory was 64.9MB in the beginning and 46.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 04:00:57,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.44ms. Allocated memory is still 86.0MB. Free memory was 46.0MB in the beginning and 44.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:57,384 INFO L158 Benchmark]: Boogie Preprocessor took 48.37ms. Allocated memory is still 86.0MB. Free memory was 44.2MB in the beginning and 64.6MB in the end (delta: -20.4MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-08-30 04:00:57,384 INFO L158 Benchmark]: RCFGBuilder took 448.01ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 51.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 04:00:57,384 INFO L158 Benchmark]: TraceAbstraction took 4172.44ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 51.7MB in the end (delta: -601.8kB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-08-30 04:00:57,385 INFO L158 Benchmark]: Witness Printer took 51.66ms. Allocated memory is still 104.9MB. Free memory was 51.7MB in the beginning and 49.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:57,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.87ms. Allocated memory is still 86.0MB. Free memory was 64.9MB in the beginning and 46.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.44ms. Allocated memory is still 86.0MB. Free memory was 46.0MB in the beginning and 44.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.37ms. Allocated memory is still 86.0MB. Free memory was 44.2MB in the beginning and 64.6MB in the end (delta: -20.4MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * RCFGBuilder took 448.01ms. Allocated memory is still 86.0MB. Free memory was 64.6MB in the beginning and 51.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4172.44ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 51.7MB in the end (delta: -601.8kB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 51.66ms. Allocated memory is still 104.9MB. Free memory was 51.7MB in the beginning and 49.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 66 PlacesBefore, 20 PlacesAfterwards, 63 TransitionsBefore, 16 TransitionsAfterwards, 440 CoEnabledTransitionPairs, 7 FixpointIterations, 32 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 1368 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 540, independent: 392, independent conditional: 0, independent unconditional: 392, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 228, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 540, independent: 186, independent conditional: 0, independent unconditional: 186, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 228, unknown conditional: 0, unknown unconditional: 228] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: 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, 81 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 4 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 04:00:57,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE