./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:08:09,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:08:09,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:08:09,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:08:09,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:08:09,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:08:09,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:08:09,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:08:09,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:08:09,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:08:09,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:08:09,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:08:09,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:08:09,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:08:09,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:08:09,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:08:09,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:08:09,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:08:09,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:08:09,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:08:09,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:08:09,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:08:09,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:08:09,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:08:09,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:08:09,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:08:09,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:08:09,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:08:09,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:08:09,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:08:09,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:08:09,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:08:09,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:08:09,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:08:09,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:08:09,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:08:09,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:08:09,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:08:09,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:08:09,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:08:09,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:08:09,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:08:09,761 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:08:09,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:08:09,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:08:09,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:08:09,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:08:09,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:08:09,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:08:09,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:08:09,764 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:08:09,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:08:09,768 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:08:09,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:08:09,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:08:09,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:08:09,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:08:09,769 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:08:09,770 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:08:09,770 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:08:09,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:08:09,771 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:08:09,771 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:08:09,775 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:08:09,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:08:09,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:08:09,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:08:09,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:08:09,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:08:09,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:08:09,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:08:09,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:08:09,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:08:09,777 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:08:09,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:08:09,778 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:08:09,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:08:10,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:08:10,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:08:10,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:08:10,120 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:08:10,120 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:08:10,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2023-08-30 03:08:11,374 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:08:11,660 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:08:11,661 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2023-08-30 03:08:11,673 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70f4eb26d/38d01ba345c6486297abf5676118c5b8/FLAG816aff300 [2023-08-30 03:08:11,688 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70f4eb26d/38d01ba345c6486297abf5676118c5b8 [2023-08-30 03:08:11,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:08:11,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:08:11,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:08:11,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:08:11,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:08:11,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:08:11" (1/1) ... [2023-08-30 03:08:11,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f92b02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:11, skipping insertion in model container [2023-08-30 03:08:11,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:08:11" (1/1) ... [2023-08-30 03:08:11,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:08:11,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:08:11,870 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i[945,958] [2023-08-30 03:08:12,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:08:12,031 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:08:12,046 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i[945,958] [2023-08-30 03:08:12,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:08:12,121 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:08:12,121 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:08:12,127 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:08:12,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12 WrapperNode [2023-08-30 03:08:12,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:08:12,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:08:12,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:08:12,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:08:12,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,188 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-08-30 03:08:12,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:08:12,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:08:12,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:08:12,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:08:12,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,226 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:08:12,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:08:12,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:08:12,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:08:12,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (1/1) ... [2023-08-30 03:08:12,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:08:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:08:12,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:08:12,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:08:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:08:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:08:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:08:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:08:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:08:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:08:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:08:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:08:12,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:08:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:08:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:08:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:08:12,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:08:12,306 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:08:12,468 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:08:12,470 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:08:12,621 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:08:12,626 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:08:12,627 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:08:12,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:08:12 BoogieIcfgContainer [2023-08-30 03:08:12,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:08:12,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:08:12,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:08:12,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:08:12,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:08:11" (1/3) ... [2023-08-30 03:08:12,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ea5552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:08:12, skipping insertion in model container [2023-08-30 03:08:12,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:08:12" (2/3) ... [2023-08-30 03:08:12,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ea5552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:08:12, skipping insertion in model container [2023-08-30 03:08:12,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:08:12" (3/3) ... [2023-08-30 03:08:12,638 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2023-08-30 03:08:12,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:08:12,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:08:12,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:08:12,716 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:08:12,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2023-08-30 03:08:12,793 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2023-08-30 03:08:12,794 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:08:12,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 03:08:12,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 75 transitions, 160 flow [2023-08-30 03:08:12,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 69 transitions, 144 flow [2023-08-30 03:08:12,805 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:08:12,812 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 69 transitions, 144 flow [2023-08-30 03:08:12,815 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 69 transitions, 144 flow [2023-08-30 03:08:12,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 69 transitions, 144 flow [2023-08-30 03:08:12,832 INFO L130 PetriNetUnfolder]: 2/69 cut-off events. [2023-08-30 03:08:12,832 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:08:12,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 69 events. 2/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-30 03:08:12,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 780 [2023-08-30 03:08:15,183 INFO L134 LiptonReduction]: Checked pairs total: 1691 [2023-08-30 03:08:15,184 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-30 03:08:15,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:08:15,202 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;@6c52df3f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:08:15,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:08:15,204 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:08:15,204 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:08:15,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:15,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:08:15,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:15,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:15,210 INFO L85 PathProgramCache]: Analyzing trace with hash 275, now seen corresponding path program 1 times [2023-08-30 03:08:15,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:15,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90080121] [2023-08-30 03:08:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:15,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:15,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:15,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90080121] [2023-08-30 03:08:15,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90080121] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:15,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:15,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:08:15,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137707606] [2023-08-30 03:08:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:15,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:08:15,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:15,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:08:15,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:08:15,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-30 03:08:15,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 42 flow. Second operand has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:15,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:15,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-30 03:08:15,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:15,436 INFO L130 PetriNetUnfolder]: 44/95 cut-off events. [2023-08-30 03:08:15,437 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 03:08:15,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 95 events. 44/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 322 event pairs, 44 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 184. Up to 88 conditions per place. [2023-08-30 03:08:15,440 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 11 selfloop transitions, 0 changer transitions 0/13 dead transitions. [2023-08-30 03:08:15,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 54 flow [2023-08-30 03:08:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:08:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:08:15,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 156 transitions. [2023-08-30 03:08:15,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234899328859061 [2023-08-30 03:08:15,456 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 156 transitions. [2023-08-30 03:08:15,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 156 transitions. [2023-08-30 03:08:15,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:15,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 156 transitions. [2023-08-30 03:08:15,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:15,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:15,471 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:15,473 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 42 flow. Second operand 2 states and 156 transitions. [2023-08-30 03:08:15,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 54 flow [2023-08-30 03:08:15,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 52 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:08:15,476 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 30 flow [2023-08-30 03:08:15,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-30 03:08:15,482 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -5 predicate places. [2023-08-30 03:08:15,482 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 30 flow [2023-08-30 03:08:15,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:15,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:15,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:08:15,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:08:15,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:15,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash -494801838, now seen corresponding path program 1 times [2023-08-30 03:08:15,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:15,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713561905] [2023-08-30 03:08:15,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:15,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:16,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:16,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713561905] [2023-08-30 03:08:16,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713561905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:16,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:16,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:08:16,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829132123] [2023-08-30 03:08:16,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:16,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:08:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:08:16,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:08:16,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 149 [2023-08-30 03:08:16,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:16,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 149 [2023-08-30 03:08:16,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:16,127 INFO L130 PetriNetUnfolder]: 68/154 cut-off events. [2023-08-30 03:08:16,127 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:08:16,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 154 events. 68/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 661 event pairs, 24 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 305. Up to 80 conditions per place. [2023-08-30 03:08:16,129 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 16 selfloop transitions, 5 changer transitions 0/22 dead transitions. [2023-08-30 03:08:16,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 92 flow [2023-08-30 03:08:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:08:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:08:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-08-30 03:08:16,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4854586129753915 [2023-08-30 03:08:16,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-08-30 03:08:16,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-08-30 03:08:16,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:16,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-08-30 03:08:16,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-08-30 03:08:16,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,136 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 30 flow. Second operand 3 states and 217 transitions. [2023-08-30 03:08:16,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 92 flow [2023-08-30 03:08:16,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 22 transitions, 92 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:08:16,137 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 68 flow [2023-08-30 03:08:16,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-08-30 03:08:16,138 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-08-30 03:08:16,138 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 68 flow [2023-08-30 03:08:16,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:16,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:08:16,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:08:16,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:16,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:16,140 INFO L85 PathProgramCache]: Analyzing trace with hash -494801833, now seen corresponding path program 1 times [2023-08-30 03:08:16,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:16,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413214035] [2023-08-30 03:08:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:16,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413214035] [2023-08-30 03:08:16,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413214035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:16,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:16,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:08:16,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721039395] [2023-08-30 03:08:16,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:16,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:08:16,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:08:16,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:08:16,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 149 [2023-08-30 03:08:16,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:16,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 149 [2023-08-30 03:08:16,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:16,489 INFO L130 PetriNetUnfolder]: 38/95 cut-off events. [2023-08-30 03:08:16,490 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-08-30 03:08:16,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 95 events. 38/95 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 339 event pairs, 31 based on Foata normal form. 16/111 useless extension candidates. Maximal degree in co-relation 248. Up to 79 conditions per place. [2023-08-30 03:08:16,491 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 12 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2023-08-30 03:08:16,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 90 flow [2023-08-30 03:08:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:08:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:08:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2023-08-30 03:08:16,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41778523489932884 [2023-08-30 03:08:16,496 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 249 transitions. [2023-08-30 03:08:16,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 249 transitions. [2023-08-30 03:08:16,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:16,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 249 transitions. [2023-08-30 03:08:16,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,501 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,501 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 68 flow. Second operand 4 states and 249 transitions. [2023-08-30 03:08:16,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 90 flow [2023-08-30 03:08:16,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:08:16,503 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 50 flow [2023-08-30 03:08:16,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2023-08-30 03:08:16,504 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2023-08-30 03:08:16,507 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 50 flow [2023-08-30 03:08:16,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:16,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:08:16,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:08:16,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:16,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1814870763, now seen corresponding path program 1 times [2023-08-30 03:08:16,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:16,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483789179] [2023-08-30 03:08:16,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:16,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:16,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483789179] [2023-08-30 03:08:16,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483789179] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:16,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:16,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:08:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667492592] [2023-08-30 03:08:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:16,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:08:16,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:16,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:08:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:08:16,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 149 [2023-08-30 03:08:16,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:16,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 149 [2023-08-30 03:08:16,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:16,745 INFO L130 PetriNetUnfolder]: 41/99 cut-off events. [2023-08-30 03:08:16,748 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 03:08:16,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 99 events. 41/99 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 10 based on Foata normal form. 2/100 useless extension candidates. Maximal degree in co-relation 240. Up to 45 conditions per place. [2023-08-30 03:08:16,749 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 14 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-30 03:08:16,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 102 flow [2023-08-30 03:08:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:08:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:08:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2023-08-30 03:08:16,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46812080536912754 [2023-08-30 03:08:16,752 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 279 transitions. [2023-08-30 03:08:16,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 279 transitions. [2023-08-30 03:08:16,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:16,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 279 transitions. [2023-08-30 03:08:16,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,759 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,759 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 50 flow. Second operand 4 states and 279 transitions. [2023-08-30 03:08:16,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 102 flow [2023-08-30 03:08:16,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 99 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:08:16,760 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 70 flow [2023-08-30 03:08:16,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2023-08-30 03:08:16,762 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2023-08-30 03:08:16,762 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 70 flow [2023-08-30 03:08:16,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:16,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:08:16,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:08:16,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:16,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1841010862, now seen corresponding path program 1 times [2023-08-30 03:08:16,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:16,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783524803] [2023-08-30 03:08:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:16,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:16,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:16,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783524803] [2023-08-30 03:08:16,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783524803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:16,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:16,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:08:16,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729543426] [2023-08-30 03:08:16,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:16,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:08:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:08:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:08:16,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 149 [2023-08-30 03:08:16,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:16,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 149 [2023-08-30 03:08:16,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:16,941 INFO L130 PetriNetUnfolder]: 38/95 cut-off events. [2023-08-30 03:08:16,941 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-30 03:08:16,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 95 events. 38/95 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 330 event pairs, 6 based on Foata normal form. 1/96 useless extension candidates. Maximal degree in co-relation 263. Up to 52 conditions per place. [2023-08-30 03:08:16,942 INFO L137 encePairwiseOnDemand]: 145/149 looper letters, 15 selfloop transitions, 6 changer transitions 0/22 dead transitions. [2023-08-30 03:08:16,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 134 flow [2023-08-30 03:08:16,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:08:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:08:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2023-08-30 03:08:16,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4714765100671141 [2023-08-30 03:08:16,944 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 281 transitions. [2023-08-30 03:08:16,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 281 transitions. [2023-08-30 03:08:16,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:16,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 281 transitions. [2023-08-30 03:08:16,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,947 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,948 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 70 flow. Second operand 4 states and 281 transitions. [2023-08-30 03:08:16,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 134 flow [2023-08-30 03:08:16,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 125 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:08:16,949 INFO L231 Difference]: Finished difference. Result has 28 places, 16 transitions, 86 flow [2023-08-30 03:08:16,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2023-08-30 03:08:16,950 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2023-08-30 03:08:16,950 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 86 flow [2023-08-30 03:08:16,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:16,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:16,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:08:16,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:08:16,951 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:16,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:16,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1236771101, now seen corresponding path program 1 times [2023-08-30 03:08:16,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:16,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304742028] [2023-08-30 03:08:16,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:16,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:17,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:17,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:17,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304742028] [2023-08-30 03:08:17,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304742028] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:17,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:17,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:08:17,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417921054] [2023-08-30 03:08:17,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:17,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:08:17,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:17,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:08:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:08:17,076 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-30 03:08:17,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:17,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-30 03:08:17,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:17,123 INFO L130 PetriNetUnfolder]: 45/112 cut-off events. [2023-08-30 03:08:17,124 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2023-08-30 03:08:17,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 112 events. 45/112 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 410 event pairs, 11 based on Foata normal form. 9/121 useless extension candidates. Maximal degree in co-relation 318. Up to 46 conditions per place. [2023-08-30 03:08:17,126 INFO L137 encePairwiseOnDemand]: 145/149 looper letters, 13 selfloop transitions, 3 changer transitions 7/24 dead transitions. [2023-08-30 03:08:17,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 152 flow [2023-08-30 03:08:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:08:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:08:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2023-08-30 03:08:17,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47818791946308725 [2023-08-30 03:08:17,128 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 285 transitions. [2023-08-30 03:08:17,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 285 transitions. [2023-08-30 03:08:17,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:17,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 285 transitions. [2023-08-30 03:08:17,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,132 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,132 INFO L175 Difference]: Start difference. First operand has 28 places, 16 transitions, 86 flow. Second operand 4 states and 285 transitions. [2023-08-30 03:08:17,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 152 flow [2023-08-30 03:08:17,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 144 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 03:08:17,136 INFO L231 Difference]: Finished difference. Result has 31 places, 12 transitions, 67 flow [2023-08-30 03:08:17,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=12} [2023-08-30 03:08:17,138 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2023-08-30 03:08:17,139 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 12 transitions, 67 flow [2023-08-30 03:08:17,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:17,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:08:17,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:08:17,140 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:17,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash 330445197, now seen corresponding path program 1 times [2023-08-30 03:08:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:17,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962090343] [2023-08-30 03:08:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:17,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:17,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:17,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962090343] [2023-08-30 03:08:17,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962090343] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:17,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:17,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:08:17,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095848696] [2023-08-30 03:08:17,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:17,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:08:17,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:08:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:08:17,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-30 03:08:17,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 12 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:17,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-30 03:08:17,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:17,315 INFO L130 PetriNetUnfolder]: 13/44 cut-off events. [2023-08-30 03:08:17,315 INFO L131 PetriNetUnfolder]: For 64/65 co-relation queries the response was YES. [2023-08-30 03:08:17,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 44 events. 13/44 cut-off events. For 64/65 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 3 based on Foata normal form. 2/45 useless extension candidates. Maximal degree in co-relation 143. Up to 20 conditions per place. [2023-08-30 03:08:17,316 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 11 selfloop transitions, 2 changer transitions 10/25 dead transitions. [2023-08-30 03:08:17,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 165 flow [2023-08-30 03:08:17,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:08:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:08:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2023-08-30 03:08:17,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47651006711409394 [2023-08-30 03:08:17,318 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 355 transitions. [2023-08-30 03:08:17,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 355 transitions. [2023-08-30 03:08:17,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:17,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 355 transitions. [2023-08-30 03:08:17,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,321 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,321 INFO L175 Difference]: Start difference. First operand has 31 places, 12 transitions, 67 flow. Second operand 5 states and 355 transitions. [2023-08-30 03:08:17,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 165 flow [2023-08-30 03:08:17,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 123 flow, removed 7 selfloop flow, removed 8 redundant places. [2023-08-30 03:08:17,324 INFO L231 Difference]: Finished difference. Result has 30 places, 12 transitions, 57 flow [2023-08-30 03:08:17,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=12} [2023-08-30 03:08:17,325 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2023-08-30 03:08:17,325 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 12 transitions, 57 flow [2023-08-30 03:08:17,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:08:17,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:08:17,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:08:17,329 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:08:17,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:08:17,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1240005778, now seen corresponding path program 1 times [2023-08-30 03:08:17,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:08:17,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014447506] [2023-08-30 03:08:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:08:17,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:08:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:08:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:08:17,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:08:17,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014447506] [2023-08-30 03:08:17,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014447506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:08:17,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:08:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:08:17,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067119753] [2023-08-30 03:08:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:08:17,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:08:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:08:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:08:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:08:17,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-30 03:08:17,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 12 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:08:17,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-30 03:08:17,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:08:17,542 INFO L130 PetriNetUnfolder]: 6/26 cut-off events. [2023-08-30 03:08:17,542 INFO L131 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2023-08-30 03:08:17,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 26 events. 6/26 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 2 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 85. Up to 10 conditions per place. [2023-08-30 03:08:17,543 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2023-08-30 03:08:17,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 17 transitions, 102 flow [2023-08-30 03:08:17,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:08:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:08:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2023-08-30 03:08:17,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4608501118568233 [2023-08-30 03:08:17,545 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 412 transitions. [2023-08-30 03:08:17,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 412 transitions. [2023-08-30 03:08:17,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:08:17,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 412 transitions. [2023-08-30 03:08:17,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,550 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,550 INFO L175 Difference]: Start difference. First operand has 30 places, 12 transitions, 57 flow. Second operand 6 states and 412 transitions. [2023-08-30 03:08:17,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 17 transitions, 102 flow [2023-08-30 03:08:17,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 17 transitions, 87 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 03:08:17,553 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-30 03:08:17,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, 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=6, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-30 03:08:17,555 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2023-08-30 03:08:17,555 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-30 03:08:17,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:08:17,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2023-08-30 03:08:17,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:08:17,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:08:17,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:08:17,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2023-08-30 03:08:17,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:08:17,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:08:17,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-08-30 03:08:17,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:08:17,560 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:08:17,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:08:17,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:08:17,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:08:17 BasicIcfg [2023-08-30 03:08:17,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:08:17,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:08:17,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:08:17,574 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:08:17,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:08:12" (3/4) ... [2023-08-30 03:08:17,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:08:17,582 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:08:17,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:08:17,588 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-30 03:08:17,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:08:17,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:08:17,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:08:17,621 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:08:17,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:08:17,622 INFO L158 Benchmark]: Toolchain (without parser) took 5930.82ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 55.7MB in the beginning and 60.4MB in the end (delta: -4.7MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-08-30 03:08:17,622 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 57.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:08:17,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.91ms. Allocated memory is still 81.8MB. Free memory was 55.5MB in the beginning and 54.6MB in the end (delta: 870.6kB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-08-30 03:08:17,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.48ms. Allocated memory is still 81.8MB. Free memory was 54.6MB in the beginning and 52.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:08:17,623 INFO L158 Benchmark]: Boogie Preprocessor took 48.05ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 51.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:08:17,623 INFO L158 Benchmark]: RCFGBuilder took 392.09ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 38.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:08:17,624 INFO L158 Benchmark]: TraceAbstraction took 4941.44ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 37.5MB in the beginning and 62.5MB in the end (delta: -25.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-08-30 03:08:17,624 INFO L158 Benchmark]: Witness Printer took 48.12ms. Allocated memory is still 119.5MB. Free memory was 62.5MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:08:17,626 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 60.8MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 57.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.91ms. Allocated memory is still 81.8MB. Free memory was 55.5MB in the beginning and 54.6MB in the end (delta: 870.6kB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.48ms. Allocated memory is still 81.8MB. Free memory was 54.6MB in the beginning and 52.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.05ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 51.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 392.09ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 38.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4941.44ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 37.5MB in the beginning and 62.5MB in the end (delta: -25.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 48.12ms. Allocated memory is still 119.5MB. Free memory was 62.5MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 74 PlacesBefore, 24 PlacesAfterwards, 69 TransitionsBefore, 18 TransitionsAfterwards, 780 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 1691 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 968, independent: 879, independent conditional: 0, independent unconditional: 879, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 473, independent: 458, independent conditional: 0, independent unconditional: 458, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 968, independent: 421, independent conditional: 0, independent unconditional: 421, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 473, unknown conditional: 0, unknown unconditional: 473] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 756]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 90 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: 4.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 30 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=5, InterpolantAutomatonStates: 32, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:08:17,657 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