./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:35:01,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:35:01,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:35:01,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:35:01,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:35:01,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:35:01,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:35:01,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:35:01,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:35:01,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:35:01,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:35:01,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:35:01,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:35:01,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:35:01,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:35:01,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:35:01,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:35:01,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:35:01,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:35:01,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:35:01,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:35:01,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:35:01,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:35:01,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:35:01,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:35:01,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:35:01,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:35:01,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:35:01,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:35:01,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:35:01,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:35:01,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:35:01,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:35:01,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:35:01,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:35:01,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:35:01,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:35:01,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:35:01,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:35:01,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:35:01,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:35:01,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:35:01,804 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:35:01,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:35:01,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:35:01,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:35:01,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:35:01,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:35:01,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:35:01,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:35:01,807 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:35:01,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:35:01,808 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:35:01,808 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:35:01,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:35:01,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:35:01,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:35:01,808 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:35:01,809 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:35:01,809 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:35:01,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:35:01,809 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:35:01,809 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:35:01,809 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:35:01,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:35:01,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:35:01,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:35:01,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:35:01,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:35:01,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:35:01,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:35:01,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:35:01,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:35:01,811 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:35:01,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:35:01,811 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:35:01,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:35:02,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:35:02,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:35:02,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:35:02,064 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:35:02,064 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:35:02,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-08-29 21:35:03,005 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:35:03,190 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:35:03,190 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-08-29 21:35:03,197 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f18498fc/d169255a49394c27a3f2aa9f14cb7c16/FLAGd229018fa [2023-08-29 21:35:03,206 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f18498fc/d169255a49394c27a3f2aa9f14cb7c16 [2023-08-29 21:35:03,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:35:03,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:35:03,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:35:03,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:35:03,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:35:03,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e09acc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03, skipping insertion in model container [2023-08-29 21:35:03,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:35:03,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:35:03,341 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2023-08-29 21:35:03,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:35:03,481 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:35:03,491 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2023-08-29 21:35:03,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:35:03,551 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:35:03,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03 WrapperNode [2023-08-29 21:35:03,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:35:03,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:35:03,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:35:03,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:35:03,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,598 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-29 21:35:03,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:35:03,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:35:03,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:35:03,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:35:03,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,638 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:35:03,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:35:03,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:35:03,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:35:03,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (1/1) ... [2023-08-29 21:35:03,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:35:03,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:35:03,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 21:35:03,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:35:03,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:35:03,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:35:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:35:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:35:03,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:35:03,703 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:35:03,805 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:35:03,806 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:35:04,001 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:35:04,006 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:35:04,006 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:35:04,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:04 BoogieIcfgContainer [2023-08-29 21:35:04,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:35:04,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:35:04,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:35:04,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:35:04,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:35:03" (1/3) ... [2023-08-29 21:35:04,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc52de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:35:04, skipping insertion in model container [2023-08-29 21:35:04,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:35:03" (2/3) ... [2023-08-29 21:35:04,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc52de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:35:04, skipping insertion in model container [2023-08-29 21:35:04,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:04" (3/3) ... [2023-08-29 21:35:04,015 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-08-29 21:35:04,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:35:04,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-29 21:35:04,026 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:35:04,069 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 21:35:04,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 208 flow [2023-08-29 21:35:04,144 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2023-08-29 21:35:04,145 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:35:04,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 2/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 21:35:04,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 100 transitions, 208 flow [2023-08-29 21:35:04,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 95 transitions, 196 flow [2023-08-29 21:35:04,154 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:35:04,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 95 transitions, 196 flow [2023-08-29 21:35:04,176 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 95 transitions, 196 flow [2023-08-29 21:35:04,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 95 transitions, 196 flow [2023-08-29 21:35:04,198 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2023-08-29 21:35:04,198 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:35:04,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 2/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 21:35:04,208 INFO L119 LiptonReduction]: Number of co-enabled transitions 1122 [2023-08-29 21:35:06,757 INFO L134 LiptonReduction]: Checked pairs total: 4858 [2023-08-29 21:35:06,758 INFO L136 LiptonReduction]: Total number of compositions: 82 [2023-08-29 21:35:06,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:35:06,778 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;@90b207, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:35:06,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 21:35:06,780 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-29 21:35:06,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:35:06,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:06,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:35:06,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:06,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash 341, now seen corresponding path program 1 times [2023-08-29 21:35:06,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:06,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142094632] [2023-08-29 21:35:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:06,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:06,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:06,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142094632] [2023-08-29 21:35:06,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142094632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:06,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:06,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:35:06,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509170930] [2023-08-29 21:35:06,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:06,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:35:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:06,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:35:06,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:35:06,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 182 [2023-08-29 21:35:06,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 70 flow. Second operand has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:06,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:06,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 182 [2023-08-29 21:35:06,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:06,968 INFO L130 PetriNetUnfolder]: 72/200 cut-off events. [2023-08-29 21:35:06,968 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:35:06,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 200 events. 72/200 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 806 event pairs, 72 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 358. Up to 167 conditions per place. [2023-08-29 21:35:06,970 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 22 selfloop transitions, 0 changer transitions 0/28 dead transitions. [2023-08-29 21:35:06,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 106 flow [2023-08-29 21:35:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:35:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:35:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 213 transitions. [2023-08-29 21:35:06,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5851648351648352 [2023-08-29 21:35:06,982 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 213 transitions. [2023-08-29 21:35:06,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 213 transitions. [2023-08-29 21:35:06,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:06,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 213 transitions. [2023-08-29 21:35:06,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 106.5) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:06,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:06,995 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:06,996 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 70 flow. Second operand 2 states and 213 transitions. [2023-08-29 21:35:06,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 106 flow [2023-08-29 21:35:06,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:06,999 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 58 flow [2023-08-29 21:35:07,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-08-29 21:35:07,004 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-08-29 21:35:07,004 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 58 flow [2023-08-29 21:35:07,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:07,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:35:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:35:07,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:07,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash 321069123, now seen corresponding path program 1 times [2023-08-29 21:35:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:07,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14841345] [2023-08-29 21:35:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:07,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:07,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14841345] [2023-08-29 21:35:07,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14841345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:07,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:07,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:07,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180301584] [2023-08-29 21:35:07,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:07,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:07,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:07,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:07,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 182 [2023-08-29 21:35:07,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:07,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 182 [2023-08-29 21:35:07,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:07,262 INFO L130 PetriNetUnfolder]: 60/192 cut-off events. [2023-08-29 21:35:07,262 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:35:07,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 192 events. 60/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 775 event pairs, 50 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 339. Up to 123 conditions per place. [2023-08-29 21:35:07,265 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 29 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2023-08-29 21:35:07,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 38 transitions, 142 flow [2023-08-29 21:35:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-29 21:35:07,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5622710622710623 [2023-08-29 21:35:07,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-29 21:35:07,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-29 21:35:07,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:07,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-29 21:35:07,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,274 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 58 flow. Second operand 3 states and 307 transitions. [2023-08-29 21:35:07,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 38 transitions, 142 flow [2023-08-29 21:35:07,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:35:07,275 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 71 flow [2023-08-29 21:35:07,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-29 21:35:07,276 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-29 21:35:07,276 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 71 flow [2023-08-29 21:35:07,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:07,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:07,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:35:07,277 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:07,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1001240867, now seen corresponding path program 1 times [2023-08-29 21:35:07,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:07,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226965673] [2023-08-29 21:35:07,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:07,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:07,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:07,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226965673] [2023-08-29 21:35:07,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226965673] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:07,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:35:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953056402] [2023-08-29 21:35:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:07,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:07,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 182 [2023-08-29 21:35:07,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:07,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 182 [2023-08-29 21:35:07,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:07,490 INFO L130 PetriNetUnfolder]: 112/278 cut-off events. [2023-08-29 21:35:07,490 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2023-08-29 21:35:07,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 278 events. 112/278 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1149 event pairs, 54 based on Foata normal form. 5/257 useless extension candidates. Maximal degree in co-relation 600. Up to 209 conditions per place. [2023-08-29 21:35:07,492 INFO L137 encePairwiseOnDemand]: 170/182 looper letters, 33 selfloop transitions, 12 changer transitions 0/47 dead transitions. [2023-08-29 21:35:07,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 207 flow [2023-08-29 21:35:07,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-08-29 21:35:07,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5421245421245421 [2023-08-29 21:35:07,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-08-29 21:35:07,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-08-29 21:35:07,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:07,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-08-29 21:35:07,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,497 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 71 flow. Second operand 3 states and 296 transitions. [2023-08-29 21:35:07,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 207 flow [2023-08-29 21:35:07,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:07,498 INFO L231 Difference]: Finished difference. Result has 35 places, 38 transitions, 141 flow [2023-08-29 21:35:07,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=35, PETRI_TRANSITIONS=38} [2023-08-29 21:35:07,499 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-29 21:35:07,499 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 38 transitions, 141 flow [2023-08-29 21:35:07,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:07,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:07,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 21:35:07,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:07,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:07,500 INFO L85 PathProgramCache]: Analyzing trace with hash -975330947, now seen corresponding path program 1 times [2023-08-29 21:35:07,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:07,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679205925] [2023-08-29 21:35:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:07,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:07,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:07,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679205925] [2023-08-29 21:35:07,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679205925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:07,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:07,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:35:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441853197] [2023-08-29 21:35:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:07,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:35:07,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:07,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:35:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 21:35:07,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 182 [2023-08-29 21:35:07,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 38 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:07,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 182 [2023-08-29 21:35:07,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:07,724 INFO L130 PetriNetUnfolder]: 71/220 cut-off events. [2023-08-29 21:35:07,724 INFO L131 PetriNetUnfolder]: For 39/43 co-relation queries the response was YES. [2023-08-29 21:35:07,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 220 events. 71/220 cut-off events. For 39/43 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 893 event pairs, 26 based on Foata normal form. 25/214 useless extension candidates. Maximal degree in co-relation 603. Up to 124 conditions per place. [2023-08-29 21:35:07,727 INFO L137 encePairwiseOnDemand]: 169/182 looper letters, 34 selfloop transitions, 20 changer transitions 0/57 dead transitions. [2023-08-29 21:35:07,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 57 transitions, 322 flow [2023-08-29 21:35:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:35:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:35:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2023-08-29 21:35:07,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137362637362637 [2023-08-29 21:35:07,732 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2023-08-29 21:35:07,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2023-08-29 21:35:07,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:07,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2023-08-29 21:35:07,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,734 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,737 INFO L175 Difference]: Start difference. First operand has 35 places, 38 transitions, 141 flow. Second operand 4 states and 374 transitions. [2023-08-29 21:35:07,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 57 transitions, 322 flow [2023-08-29 21:35:07,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 57 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:35:07,741 INFO L231 Difference]: Finished difference. Result has 38 places, 48 transitions, 250 flow [2023-08-29 21:35:07,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=38, PETRI_TRANSITIONS=48} [2023-08-29 21:35:07,742 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-08-29 21:35:07,742 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 48 transitions, 250 flow [2023-08-29 21:35:07,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:07,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:07,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 21:35:07,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:07,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash -594097333, now seen corresponding path program 2 times [2023-08-29 21:35:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:07,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335003998] [2023-08-29 21:35:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:07,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:07,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:07,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335003998] [2023-08-29 21:35:07,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335003998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:07,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:07,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:35:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877375038] [2023-08-29 21:35:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:07,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:35:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:07,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:35:07,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:35:07,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 182 [2023-08-29 21:35:07,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 48 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:07,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:07,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 182 [2023-08-29 21:35:07,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:08,027 INFO L130 PetriNetUnfolder]: 68/224 cut-off events. [2023-08-29 21:35:08,028 INFO L131 PetriNetUnfolder]: For 112/113 co-relation queries the response was YES. [2023-08-29 21:35:08,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 224 events. 68/224 cut-off events. For 112/113 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 951 event pairs, 21 based on Foata normal form. 2/198 useless extension candidates. Maximal degree in co-relation 768. Up to 137 conditions per place. [2023-08-29 21:35:08,029 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 41 selfloop transitions, 18 changer transitions 0/61 dead transitions. [2023-08-29 21:35:08,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 61 transitions, 430 flow [2023-08-29 21:35:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:35:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:35:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2023-08-29 21:35:08,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510989010989011 [2023-08-29 21:35:08,038 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2023-08-29 21:35:08,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2023-08-29 21:35:08,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:08,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2023-08-29 21:35:08,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,041 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,041 INFO L175 Difference]: Start difference. First operand has 38 places, 48 transitions, 250 flow. Second operand 4 states and 372 transitions. [2023-08-29 21:35:08,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 61 transitions, 430 flow [2023-08-29 21:35:08,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 61 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:35:08,045 INFO L231 Difference]: Finished difference. Result has 40 places, 50 transitions, 324 flow [2023-08-29 21:35:08,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=40, PETRI_TRANSITIONS=50} [2023-08-29 21:35:08,047 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-29 21:35:08,047 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 50 transitions, 324 flow [2023-08-29 21:35:08,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:08,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:08,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 21:35:08,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:08,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:08,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1854975173, now seen corresponding path program 1 times [2023-08-29 21:35:08,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:08,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194016830] [2023-08-29 21:35:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:08,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:08,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194016830] [2023-08-29 21:35:08,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194016830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:08,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:08,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:08,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362605664] [2023-08-29 21:35:08,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:08,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:08,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:08,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:08,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:08,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 182 [2023-08-29 21:35:08,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 50 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:08,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 182 [2023-08-29 21:35:08,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:08,145 INFO L130 PetriNetUnfolder]: 51/182 cut-off events. [2023-08-29 21:35:08,145 INFO L131 PetriNetUnfolder]: For 177/183 co-relation queries the response was YES. [2023-08-29 21:35:08,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 182 events. 51/182 cut-off events. For 177/183 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 717 event pairs, 31 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 675. Up to 138 conditions per place. [2023-08-29 21:35:08,146 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 31 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-29 21:35:08,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 344 flow [2023-08-29 21:35:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2023-08-29 21:35:08,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510989010989011 [2023-08-29 21:35:08,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2023-08-29 21:35:08,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2023-08-29 21:35:08,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:08,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2023-08-29 21:35:08,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 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) [2023-08-29 21:35:08,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,151 INFO L175 Difference]: Start difference. First operand has 40 places, 50 transitions, 324 flow. Second operand 3 states and 279 transitions. [2023-08-29 21:35:08,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 344 flow [2023-08-29 21:35:08,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 343 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:35:08,153 INFO L231 Difference]: Finished difference. Result has 40 places, 45 transitions, 281 flow [2023-08-29 21:35:08,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=40, PETRI_TRANSITIONS=45} [2023-08-29 21:35:08,155 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-29 21:35:08,155 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 45 transitions, 281 flow [2023-08-29 21:35:08,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:08,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:08,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 21:35:08,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:08,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:08,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1854975174, now seen corresponding path program 1 times [2023-08-29 21:35:08,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:08,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429037590] [2023-08-29 21:35:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:08,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:08,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:08,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429037590] [2023-08-29 21:35:08,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429037590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:08,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:08,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:08,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297523085] [2023-08-29 21:35:08,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:08,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:08,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:08,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 182 [2023-08-29 21:35:08,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 45 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:08,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 182 [2023-08-29 21:35:08,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:08,263 INFO L130 PetriNetUnfolder]: 38/147 cut-off events. [2023-08-29 21:35:08,263 INFO L131 PetriNetUnfolder]: For 166/172 co-relation queries the response was YES. [2023-08-29 21:35:08,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 147 events. 38/147 cut-off events. For 166/172 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 526 event pairs, 25 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 527. Up to 113 conditions per place. [2023-08-29 21:35:08,264 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 26 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2023-08-29 21:35:08,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 291 flow [2023-08-29 21:35:08,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:08,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-08-29 21:35:08,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5256410256410257 [2023-08-29 21:35:08,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-08-29 21:35:08,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-08-29 21:35:08,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:08,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-08-29 21:35:08,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,267 INFO L175 Difference]: Start difference. First operand has 40 places, 45 transitions, 281 flow. Second operand 3 states and 287 transitions. [2023-08-29 21:35:08,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 291 flow [2023-08-29 21:35:08,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 40 transitions, 287 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:35:08,269 INFO L231 Difference]: Finished difference. Result has 39 places, 40 transitions, 235 flow [2023-08-29 21:35:08,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=39, PETRI_TRANSITIONS=40} [2023-08-29 21:35:08,269 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2023-08-29 21:35:08,270 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 40 transitions, 235 flow [2023-08-29 21:35:08,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:08,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:08,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 21:35:08,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:08,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:08,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2039884366, now seen corresponding path program 1 times [2023-08-29 21:35:08,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:08,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162327511] [2023-08-29 21:35:08,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:08,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:08,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:08,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162327511] [2023-08-29 21:35:08,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162327511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:08,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:08,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 21:35:08,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974882712] [2023-08-29 21:35:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:08,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 21:35:08,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:08,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 21:35:08,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-29 21:35:08,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 182 [2023-08-29 21:35:08,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 40 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:08,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 182 [2023-08-29 21:35:08,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:08,596 INFO L130 PetriNetUnfolder]: 15/88 cut-off events. [2023-08-29 21:35:08,597 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-29 21:35:08,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 88 events. 15/88 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 219 event pairs, 3 based on Foata normal form. 15/103 useless extension candidates. Maximal degree in co-relation 318. Up to 56 conditions per place. [2023-08-29 21:35:08,597 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 27 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2023-08-29 21:35:08,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 258 flow [2023-08-29 21:35:08,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:35:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:35:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 354 transitions. [2023-08-29 21:35:08,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48626373626373626 [2023-08-29 21:35:08,599 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 354 transitions. [2023-08-29 21:35:08,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 354 transitions. [2023-08-29 21:35:08,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:08,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 354 transitions. [2023-08-29 21:35:08,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,601 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,601 INFO L175 Difference]: Start difference. First operand has 39 places, 40 transitions, 235 flow. Second operand 4 states and 354 transitions. [2023-08-29 21:35:08,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 258 flow [2023-08-29 21:35:08,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 232 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-29 21:35:08,603 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 152 flow [2023-08-29 21:35:08,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-29 21:35:08,604 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2023-08-29 21:35:08,605 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 152 flow [2023-08-29 21:35:08,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:35:08,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:08,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 21:35:08,605 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2023-08-29 21:35:08,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:35:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1793641521, now seen corresponding path program 1 times [2023-08-29 21:35:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:35:08,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721568807] [2023-08-29 21:35:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:35:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:35:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:35:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:35:08,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:35:08,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721568807] [2023-08-29 21:35:08,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721568807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:35:08,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:35:08,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:35:08,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881929961] [2023-08-29 21:35:08,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:35:08,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:35:08,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:35:08,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:35:08,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:35:08,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 182 [2023-08-29 21:35:08,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:35:08,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 182 [2023-08-29 21:35:08,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:35:08,764 INFO L130 PetriNetUnfolder]: 13/84 cut-off events. [2023-08-29 21:35:08,764 INFO L131 PetriNetUnfolder]: For 99/102 co-relation queries the response was YES. [2023-08-29 21:35:08,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 84 events. 13/84 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 211 event pairs, 10 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 276. Up to 63 conditions per place. [2023-08-29 21:35:08,764 INFO L137 encePairwiseOnDemand]: 180/182 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-08-29 21:35:08,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 190 flow [2023-08-29 21:35:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:35:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:35:08,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-08-29 21:35:08,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5274725274725275 [2023-08-29 21:35:08,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-08-29 21:35:08,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-08-29 21:35:08,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:35:08,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-08-29 21:35:08,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,768 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 152 flow. Second operand 3 states and 288 transitions. [2023-08-29 21:35:08,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 190 flow [2023-08-29 21:35:08,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 21:35:08,768 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-29 21:35:08,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-29 21:35:08,769 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-29 21:35:08,770 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-29 21:35:08,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:35:08,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2023-08-29 21:35:08,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-29 21:35:08,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2023-08-29 21:35:08,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2023-08-29 21:35:08,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-29 21:35:08,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2023-08-29 21:35:08,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2023-08-29 21:35:08,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-08-29 21:35:08,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 21:35:08,775 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:35:08,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:35:08,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:35:08,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:35:08 BasicIcfg [2023-08-29 21:35:08,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:35:08,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:35:08,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:35:08,781 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:35:08,781 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:35:04" (3/4) ... [2023-08-29 21:35:08,783 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:35:08,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:35:08,791 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-29 21:35:08,791 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 21:35:08,792 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:35:08,792 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 21:35:08,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:35:08,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:35:08,817 INFO L158 Benchmark]: Toolchain (without parser) took 5608.60ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 73.0MB in the beginning and 73.8MB in the end (delta: -797.1kB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,817 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:35:08,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.26ms. Allocated memory is still 94.4MB. Free memory was 72.7MB in the beginning and 53.6MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.75ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 51.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,817 INFO L158 Benchmark]: Boogie Preprocessor took 44.26ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 73.8MB in the end (delta: -22.5MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,818 INFO L158 Benchmark]: RCFGBuilder took 362.31ms. Allocated memory is still 94.4MB. Free memory was 73.8MB in the beginning and 59.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,818 INFO L158 Benchmark]: TraceAbstraction took 4771.13ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 58.2MB in the beginning and 76.9MB in the end (delta: -18.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,818 INFO L158 Benchmark]: Witness Printer took 35.76ms. Allocated memory is still 136.3MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:35:08,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.26ms. Allocated memory is still 94.4MB. Free memory was 72.7MB in the beginning and 53.6MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.75ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 51.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.26ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 73.8MB in the end (delta: -22.5MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * RCFGBuilder took 362.31ms. Allocated memory is still 94.4MB. Free memory was 73.8MB in the beginning and 59.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4771.13ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 58.2MB in the beginning and 76.9MB in the end (delta: -18.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 35.76ms. Allocated memory is still 136.3MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 97 PlacesBefore, 35 PlacesAfterwards, 95 TransitionsBefore, 32 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 82 TotalNumberOfCompositions, 4858 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1355, independent: 1063, independent conditional: 0, independent unconditional: 1063, dependent: 292, dependent conditional: 0, dependent unconditional: 292, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 550, independent: 509, independent conditional: 0, independent unconditional: 509, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1355, independent: 554, independent conditional: 0, independent unconditional: 554, dependent: 251, dependent conditional: 0, dependent unconditional: 251, unknown: 550, unknown conditional: 0, unknown unconditional: 550] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 698]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 118 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: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 916 IncrementalHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 81 mSDtfsCounter, 916 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=5, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 21:35:08,835 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