./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_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_25-struct_nr_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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:34:48,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:34:48,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:34:48,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:34:48,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:34:48,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:34:48,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:34:48,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:34:48,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:34:48,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:34:48,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:34:48,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:34:48,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:34:48,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:34:48,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:34:48,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:34:48,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:34:48,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:34:48,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:34:48,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:34:48,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:34:48,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:34:48,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:34:48,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:34:48,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:34:48,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:34:48,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:34:48,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:34:48,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:34:48,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:34:48,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:34:48,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:34:48,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:34:48,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:34:48,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:34:48,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:34:48,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:34:48,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:34:48,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:34:48,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:34:48,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:34:48,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:34:48,534 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:34:48,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:34:48,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:34:48,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:34:48,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:34:48,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:34:48,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:34:48,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:34:48,537 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:34:48,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:34:48,538 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:34:48,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:34:48,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:34:48,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:34:48,539 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:34:48,540 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:34:48,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:34:48,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:34:48,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:34:48,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:34:48,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:34:48,541 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:34:48,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:34:48,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:34:48,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:34:48,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:34:48,813 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:34:48,813 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:34:48,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-08-29 21:34:49,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:34:50,050 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:34:50,051 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-08-29 21:34:50,059 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03bec1a5a/3bf99227074a4e7a8b279c0095fe05bd/FLAG3aa8a20bf [2023-08-29 21:34:50,068 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03bec1a5a/3bf99227074a4e7a8b279c0095fe05bd [2023-08-29 21:34:50,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:34:50,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:34:50,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:34:50,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:34:50,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:34:50,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee28e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50, skipping insertion in model container [2023-08-29 21:34:50,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:34:50,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:34:50,257 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_25-struct_nr_true.i[1086,1099] [2023-08-29 21:34:50,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:34:50,429 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:34:50,439 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_25-struct_nr_true.i[1086,1099] [2023-08-29 21:34:50,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:34:50,500 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:34:50,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50 WrapperNode [2023-08-29 21:34:50,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:34:50,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:34:50,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:34:50,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:34:50,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,553 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76 [2023-08-29 21:34:50,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:34:50,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:34:50,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:34:50,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:34:50,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,584 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:34:50,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:34:50,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:34:50,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:34:50,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (1/1) ... [2023-08-29 21:34:50,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:34:50,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:34:50,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 21:34:50,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 21:34:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 21:34:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:34:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:34:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:34:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:34:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:34:50,668 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:34:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:34:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:34:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:34:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:34:50,670 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:34:50,780 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:34:50,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:34:50,939 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:34:50,944 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:34:50,944 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:34:50,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:50 BoogieIcfgContainer [2023-08-29 21:34:50,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:34:50,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:34:50,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:34:50,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:34:50,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:34:50" (1/3) ... [2023-08-29 21:34:50,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d10b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:34:50, skipping insertion in model container [2023-08-29 21:34:50,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:34:50" (2/3) ... [2023-08-29 21:34:50,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d10b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:34:50, skipping insertion in model container [2023-08-29 21:34:50,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:50" (3/3) ... [2023-08-29 21:34:50,955 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-08-29 21:34:50,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:34:50,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 21:34:50,967 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:34:51,005 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 21:34:51,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 192 flow [2023-08-29 21:34:51,067 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2023-08-29 21:34:51,067 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:51,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 4/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-29 21:34:51,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 92 transitions, 192 flow [2023-08-29 21:34:51,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 180 flow [2023-08-29 21:34:51,081 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:34:51,093 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 87 transitions, 180 flow [2023-08-29 21:34:51,099 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 87 transitions, 180 flow [2023-08-29 21:34:51,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 180 flow [2023-08-29 21:34:51,124 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2023-08-29 21:34:51,134 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:51,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 4/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-29 21:34:51,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-29 21:34:53,164 INFO L134 LiptonReduction]: Checked pairs total: 3094 [2023-08-29 21:34:53,164 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-08-29 21:34:53,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:34:53,177 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;@3a21fbec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:34:53,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-29 21:34:53,179 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:34:53,179 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:53,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:53,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:34:53,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:53,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash 349, now seen corresponding path program 1 times [2023-08-29 21:34:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988953445] [2023-08-29 21:34:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:53,253 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 21:34:53,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:53,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988953445] [2023-08-29 21:34:53,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988953445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:53,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:53,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:34:53,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098831493] [2023-08-29 21:34:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:53,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:34:53,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:34:53,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:34:53,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2023-08-29 21:34:53,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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 21:34:53,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:53,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2023-08-29 21:34:53,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:53,322 INFO L130 PetriNetUnfolder]: 80/182 cut-off events. [2023-08-29 21:34:53,322 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:34:53,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 182 events. 80/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 617 event pairs, 80 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 356. Up to 183 conditions per place. [2023-08-29 21:34:53,324 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 22 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-08-29 21:34:53,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 94 flow [2023-08-29 21:34:53,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:34:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:34:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions. [2023-08-29 21:34:53,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5163043478260869 [2023-08-29 21:34:53,333 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions. [2023-08-29 21:34:53,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions. [2023-08-29 21:34:53,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:53,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions. [2023-08-29 21:34:53,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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 21:34:53,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 21:34:53,345 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 21:34:53,346 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 2 states and 190 transitions. [2023-08-29 21:34:53,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 94 flow [2023-08-29 21:34:53,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:53,349 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 46 flow [2023-08-29 21:34:53,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-08-29 21:34:53,352 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2023-08-29 21:34:53,353 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 46 flow [2023-08-29 21:34:53,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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 21:34:53,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:53,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:34:53,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:34:53,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:53,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash 10807215, now seen corresponding path program 1 times [2023-08-29 21:34:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:53,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728166800] [2023-08-29 21:34:53,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:53,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:53,615 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 21:34:53,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:53,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728166800] [2023-08-29 21:34:53,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728166800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:53,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:53,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:53,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099240190] [2023-08-29 21:34:53,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:53,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:53,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:53,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:53,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:53,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-08-29 21:34:53,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:53,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:53,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-08-29 21:34:53,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:53,683 INFO L130 PetriNetUnfolder]: 77/176 cut-off events. [2023-08-29 21:34:53,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:53,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 176 events. 77/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 602 event pairs, 46 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 353. Up to 163 conditions per place. [2023-08-29 21:34:53,685 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-29 21:34:53,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 114 flow [2023-08-29 21:34:53,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:53,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-08-29 21:34:53,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47101449275362317 [2023-08-29 21:34:53,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-08-29 21:34:53,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-08-29 21:34:53,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:53,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-08-29 21:34:53,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 21:34:53,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:53,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:53,692 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 46 flow. Second operand 3 states and 260 transitions. [2023-08-29 21:34:53,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 114 flow [2023-08-29 21:34:53,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:34:53,693 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 65 flow [2023-08-29 21:34:53,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-08-29 21:34:53,694 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2023-08-29 21:34:53,694 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 65 flow [2023-08-29 21:34:53,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:53,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:53,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:34:53,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:34:53,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:53,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:53,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1795781341, now seen corresponding path program 1 times [2023-08-29 21:34:53,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:53,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314344067] [2023-08-29 21:34:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:53,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:53,809 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 21:34:53,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:53,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314344067] [2023-08-29 21:34:53,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314344067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:53,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:53,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:34:53,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430705480] [2023-08-29 21:34:53,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:53,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:34:53,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:34:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:34:53,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 184 [2023-08-29 21:34:53,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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 21:34:53,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:53,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 184 [2023-08-29 21:34:53,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:53,949 INFO L130 PetriNetUnfolder]: 89/204 cut-off events. [2023-08-29 21:34:53,949 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 21:34:53,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 204 events. 89/204 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 781 event pairs, 28 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 446. Up to 142 conditions per place. [2023-08-29 21:34:53,956 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 38 selfloop transitions, 9 changer transitions 0/47 dead transitions. [2023-08-29 21:34:53,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 47 transitions, 214 flow [2023-08-29 21:34:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 21:34:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 21:34:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-08-29 21:34:53,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44565217391304346 [2023-08-29 21:34:53,960 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-08-29 21:34:53,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-08-29 21:34:53,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:53,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-08-29 21:34:53,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 21:34:53,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 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 21:34:53,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 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 21:34:53,965 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 65 flow. Second operand 6 states and 492 transitions. [2023-08-29 21:34:53,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 47 transitions, 214 flow [2023-08-29 21:34:53,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 47 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:34:53,966 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 120 flow [2023-08-29 21:34:53,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-08-29 21:34:53,968 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 21:34:53,968 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 120 flow [2023-08-29 21:34:53,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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 21:34:53,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:53,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:34:53,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 21:34:53,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:53,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:53,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1795781975, now seen corresponding path program 1 times [2023-08-29 21:34:53,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69102150] [2023-08-29 21:34:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:53,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,028 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 21:34:54,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69102150] [2023-08-29 21:34:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69102150] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:34:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075552449] [2023-08-29 21:34:54,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:54,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-08-29 21:34:54,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:54,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:54,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-08-29 21:34:54,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:54,088 INFO L130 PetriNetUnfolder]: 99/226 cut-off events. [2023-08-29 21:34:54,088 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-29 21:34:54,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 226 events. 99/226 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 920 event pairs, 47 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 581. Up to 189 conditions per place. [2023-08-29 21:34:54,090 INFO L137 encePairwiseOnDemand]: 179/184 looper letters, 35 selfloop transitions, 8 changer transitions 0/43 dead transitions. [2023-08-29 21:34:54,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 250 flow [2023-08-29 21:34:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-08-29 21:34:54,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48188405797101447 [2023-08-29 21:34:54,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-08-29 21:34:54,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-08-29 21:34:54,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:54,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-08-29 21:34:54,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 21:34:54,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,100 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 120 flow. Second operand 3 states and 266 transitions. [2023-08-29 21:34:54,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 250 flow [2023-08-29 21:34:54,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 237 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:54,103 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 163 flow [2023-08-29 21:34:54,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-08-29 21:34:54,105 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2023-08-29 21:34:54,105 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 163 flow [2023-08-29 21:34:54,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:54,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:54,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:54,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 21:34:54,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:54,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:54,106 INFO L85 PathProgramCache]: Analyzing trace with hash -163963676, now seen corresponding path program 1 times [2023-08-29 21:34:54,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:54,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933269642] [2023-08-29 21:34:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:54,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,157 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 21:34:54,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933269642] [2023-08-29 21:34:54,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933269642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:34:54,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877569964] [2023-08-29 21:34:54,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:54,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:54,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-08-29 21:34:54,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 21:34:54,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:54,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-08-29 21:34:54,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:54,191 INFO L130 PetriNetUnfolder]: 3/50 cut-off events. [2023-08-29 21:34:54,192 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-08-29 21:34:54,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 50 events. 3/50 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 118 event pairs, 0 based on Foata normal form. 11/57 useless extension candidates. Maximal degree in co-relation 141. Up to 36 conditions per place. [2023-08-29 21:34:54,192 INFO L137 encePairwiseOnDemand]: 178/184 looper letters, 19 selfloop transitions, 6 changer transitions 0/25 dead transitions. [2023-08-29 21:34:54,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 148 flow [2023-08-29 21:34:54,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:54,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-29 21:34:54,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601449275362319 [2023-08-29 21:34:54,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-29 21:34:54,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-29 21:34:54,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:54,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-29 21:34:54,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 21:34:54,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,196 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 163 flow. Second operand 3 states and 254 transitions. [2023-08-29 21:34:54,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 148 flow [2023-08-29 21:34:54,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 25 transitions, 129 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-29 21:34:54,198 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 91 flow [2023-08-29 21:34:54,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-08-29 21:34:54,200 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-08-29 21:34:54,200 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 91 flow [2023-08-29 21:34:54,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 21:34:54,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:54,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:54,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 21:34:54,205 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:54,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 7782870, now seen corresponding path program 1 times [2023-08-29 21:34:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:54,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092240420] [2023-08-29 21:34:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:54,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,269 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 21:34:54,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092240420] [2023-08-29 21:34:54,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092240420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:54,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791195822] [2023-08-29 21:34:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:54,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:54,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:54,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-08-29 21:34:54,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 21:34:54,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:54,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-08-29 21:34:54,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:54,321 INFO L130 PetriNetUnfolder]: 2/41 cut-off events. [2023-08-29 21:34:54,321 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:54,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 111. Up to 40 conditions per place. [2023-08-29 21:34:54,321 INFO L137 encePairwiseOnDemand]: 181/184 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-29 21:34:54,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 135 flow [2023-08-29 21:34:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:54,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:54,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-29 21:34:54,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45652173913043476 [2023-08-29 21:34:54,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-29 21:34:54,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-29 21:34:54,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:54,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-29 21:34:54,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 21:34:54,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,324 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 91 flow. Second operand 3 states and 252 transitions. [2023-08-29 21:34:54,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 135 flow [2023-08-29 21:34:54,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:34:54,325 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 86 flow [2023-08-29 21:34:54,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2023-08-29 21:34:54,339 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-08-29 21:34:54,339 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 86 flow [2023-08-29 21:34:54,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 21:34:54,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:54,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:54,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 21:34:54,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:54,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash 7782869, now seen corresponding path program 1 times [2023-08-29 21:34:54,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:54,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322174303] [2023-08-29 21:34:54,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,364 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 21:34:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322174303] [2023-08-29 21:34:54,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322174303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:54,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739506410] [2023-08-29 21:34:54,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:54,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:54,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:54,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 184 [2023-08-29 21:34:54,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 21:34:54,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:54,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 184 [2023-08-29 21:34:54,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:54,414 INFO L130 PetriNetUnfolder]: 1/32 cut-off events. [2023-08-29 21:34:54,414 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:54,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 85. Up to 31 conditions per place. [2023-08-29 21:34:54,414 INFO L137 encePairwiseOnDemand]: 181/184 looper letters, 21 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2023-08-29 21:34:54,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 129 flow [2023-08-29 21:34:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:54,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-08-29 21:34:54,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4384057971014493 [2023-08-29 21:34:54,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-08-29 21:34:54,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-08-29 21:34:54,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:54,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-08-29 21:34:54,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:54,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:54,417 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 86 flow. Second operand 3 states and 242 transitions. [2023-08-29 21:34:54,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 129 flow [2023-08-29 21:34:54,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 125 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:54,419 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 83 flow [2023-08-29 21:34:54,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-08-29 21:34:54,420 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-08-29 21:34:54,420 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 83 flow [2023-08-29 21:34:54,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 21:34:54,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:54,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:54,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 21:34:54,422 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:54,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:54,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1110589025, now seen corresponding path program 1 times [2023-08-29 21:34:54,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:54,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554179943] [2023-08-29 21:34:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:54,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,529 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 21:34:54,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554179943] [2023-08-29 21:34:54,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554179943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:34:54,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189851926] [2023-08-29 21:34:54,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 21:34:54,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 21:34:54,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-29 21:34:54,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 184 [2023-08-29 21:34:54,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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 21:34:54,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:54,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 184 [2023-08-29 21:34:54,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:54,611 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2023-08-29 21:34:54,611 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:34:54,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 82. Up to 19 conditions per place. [2023-08-29 21:34:54,612 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 19 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2023-08-29 21:34:54,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 141 flow [2023-08-29 21:34:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 21:34:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 21:34:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-08-29 21:34:54,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4148550724637681 [2023-08-29 21:34:54,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-08-29 21:34:54,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-08-29 21:34:54,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:54,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-08-29 21:34:54,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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 21:34:54,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 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 21:34:54,616 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 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 21:34:54,616 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 83 flow. Second operand 6 states and 458 transitions. [2023-08-29 21:34:54,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 141 flow [2023-08-29 21:34:54,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:34:54,617 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 95 flow [2023-08-29 21:34:54,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-29 21:34:54,618 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2023-08-29 21:34:54,618 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 95 flow [2023-08-29 21:34:54,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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 21:34:54,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:54,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:54,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 21:34:54,618 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:54,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:54,619 INFO L85 PathProgramCache]: Analyzing trace with hash 320928131, now seen corresponding path program 1 times [2023-08-29 21:34:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:54,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459848849] [2023-08-29 21:34:54,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:54,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,713 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 21:34:54,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459848849] [2023-08-29 21:34:54,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459848849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:34:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77833329] [2023-08-29 21:34:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 21:34:54,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 21:34:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-29 21:34:54,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 184 [2023-08-29 21:34:54,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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 21:34:54,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:54,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 184 [2023-08-29 21:34:54,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:54,870 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-08-29 21:34:54,870 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:34:54,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 32 events. 0/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 29 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-08-29 21:34:54,870 INFO L137 encePairwiseOnDemand]: 176/184 looper letters, 22 selfloop transitions, 10 changer transitions 0/32 dead transitions. [2023-08-29 21:34:54,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 180 flow [2023-08-29 21:34:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 21:34:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 21:34:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 681 transitions. [2023-08-29 21:34:54,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.411231884057971 [2023-08-29 21:34:54,873 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 681 transitions. [2023-08-29 21:34:54,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 681 transitions. [2023-08-29 21:34:54,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:54,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 681 transitions. [2023-08-29 21:34:54,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.66666666666667) internal successors, (681), 9 states have internal predecessors, (681), 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 21:34:54,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 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 21:34:54,876 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 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 21:34:54,876 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 95 flow. Second operand 9 states and 681 transitions. [2023-08-29 21:34:54,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 180 flow [2023-08-29 21:34:54,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 168 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 21:34:54,878 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 113 flow [2023-08-29 21:34:54,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=113, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2023-08-29 21:34:54,878 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2023-08-29 21:34:54,878 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 113 flow [2023-08-29 21:34:54,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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 21:34:54,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:34:54,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:54,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 21:34:54,879 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:34:54,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:34:54,880 INFO L85 PathProgramCache]: Analyzing trace with hash 827555391, now seen corresponding path program 1 times [2023-08-29 21:34:54,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:34:54,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465265783] [2023-08-29 21:34:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:34:54,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:34:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:34:54,998 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 21:34:54,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:34:54,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465265783] [2023-08-29 21:34:54,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465265783] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:34:54,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:34:54,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:34:54,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27272584] [2023-08-29 21:34:54,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:34:54,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:34:54,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:34:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:34:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:34:55,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 184 [2023-08-29 21:34:55,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:55,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:34:55,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 184 [2023-08-29 21:34:55,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:34:55,033 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2023-08-29 21:34:55,033 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 21:34:55,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 30 events. 0/30 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs, 0 based on Foata normal form. 2/32 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2023-08-29 21:34:55,033 INFO L137 encePairwiseOnDemand]: 182/184 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-29 21:34:55,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 157 flow [2023-08-29 21:34:55,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:34:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:34:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-29 21:34:55,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45471014492753625 [2023-08-29 21:34:55,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-29 21:34:55,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-29 21:34:55,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:34:55,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-29 21:34:55,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:55,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:55,036 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 21:34:55,036 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 113 flow. Second operand 3 states and 251 transitions. [2023-08-29 21:34:55,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 157 flow [2023-08-29 21:34:55,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 23 transitions, 141 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-29 21:34:55,037 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-29 21:34:55,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-29 21:34:55,038 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 21:34:55,038 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-29 21:34:55,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:34:55,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-08-29 21:34:55,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-08-29 21:34:55,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-08-29 21:34:55,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 12 remaining) [2023-08-29 21:34:55,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-08-29 21:34:55,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-08-29 21:34:55,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2023-08-29 21:34:55,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-29 21:34:55,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2023-08-29 21:34:55,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 12 remaining) [2023-08-29 21:34:55,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-08-29 21:34:55,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-08-29 21:34:55,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 21:34:55,043 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:34:55,046 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:34:55,046 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:34:55,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:34:55 BasicIcfg [2023-08-29 21:34:55,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:34:55,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:34:55,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:34:55,049 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:34:55,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:34:50" (3/4) ... [2023-08-29 21:34:55,051 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:34:55,055 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:34:55,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-29 21:34:55,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 21:34:55,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:34:55,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 21:34:55,085 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:34:55,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:34:55,086 INFO L158 Benchmark]: Toolchain (without parser) took 5012.60ms. Allocated memory was 69.2MB in the beginning and 167.8MB in the end (delta: 98.6MB). Free memory was 40.0MB in the beginning and 93.8MB in the end (delta: -53.8MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-08-29 21:34:55,086 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:34:55,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.12ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 41.6MB in the end (delta: -1.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 21:34:55,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.02ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:34:55,087 INFO L158 Benchmark]: Boogie Preprocessor took 39.56ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:34:55,087 INFO L158 Benchmark]: RCFGBuilder took 351.90ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 38.0MB in the beginning and 78.0MB in the end (delta: -40.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-08-29 21:34:55,087 INFO L158 Benchmark]: TraceAbstraction took 4101.80ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 76.9MB in the beginning and 96.9MB in the end (delta: -20.0MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-08-29 21:34:55,088 INFO L158 Benchmark]: Witness Printer took 36.21ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 93.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:34:55,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.12ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 41.6MB in the end (delta: -1.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.02ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.56ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.90ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 38.0MB in the beginning and 78.0MB in the end (delta: -40.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4101.80ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 76.9MB in the beginning and 96.9MB in the end (delta: -20.0MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Witness Printer took 36.21ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 93.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 87 PlacesBefore, 30 PlacesAfterwards, 87 TransitionsBefore, 27 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 92 TotalNumberOfCompositions, 3094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1450, independent: 1257, independent conditional: 0, independent unconditional: 1257, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 679, independent: 644, independent conditional: 0, independent unconditional: 644, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1450, independent: 613, independent conditional: 0, independent unconditional: 613, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 679, unknown conditional: 0, unknown unconditional: 679] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 697]: 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: 19]: 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, 115 locations, 12 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: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 836 IncrementalHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 44 mSDtfsCounter, 836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 21:34:55,109 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