./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 04:00:06,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:00:06,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:00:06,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:00:06,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:00:06,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:00:06,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:00:06,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:00:06,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:00:06,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:00:06,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:00:06,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:00:06,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:00:06,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:00:06,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:00:06,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:00:06,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:00:06,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:00:06,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:00:06,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:00:06,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:00:06,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:00:06,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:00:06,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:00:06,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:00:06,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:00:06,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:00:06,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:00:06,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:00:06,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:00:06,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:00:06,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:00:06,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:00:06,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:00:06,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:00:06,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:00:06,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:00:06,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:00:06,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:00:06,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:00:06,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:00:06,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:00:06,193 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:00:06,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:00:06,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:00:06,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:00:06,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:00:06,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:00:06,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:00:06,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:00:06,196 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:00:06,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:00:06,197 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:00:06,198 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:00:06,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:00:06,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:00:06,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:00:06,198 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:00:06,199 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:00:06,199 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:00:06,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:00:06,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:00:06,199 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:00:06,200 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:00:06,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:00:06,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:00:06,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:00:06,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:06,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:00:06,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:00:06,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:00:06,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:00:06,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:00:06,202 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:00:06,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:00:06,202 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:00:06,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:00:06,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:00:06,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:00:06,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:00:06,538 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:00:06,539 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:00:06,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-30 04:00:07,841 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:00:08,127 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:00:08,128 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-08-30 04:00:08,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b12911af2/f5432f84c50c49fa82507224ff617ab2/FLAG489fd4a8e [2023-08-30 04:00:08,152 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b12911af2/f5432f84c50c49fa82507224ff617ab2 [2023-08-30 04:00:08,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:00:08,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:00:08,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:08,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:00:08,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:00:08,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c922959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08, skipping insertion in model container [2023-08-30 04:00:08,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:00:08,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:00:08,346 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_24-multiple-protecting_true.i[1096,1109] [2023-08-30 04:00:08,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:08,497 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:00:08,512 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_24-multiple-protecting_true.i[1096,1109] [2023-08-30 04:00:08,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:08,606 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:00:08,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08 WrapperNode [2023-08-30 04:00:08,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:08,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:08,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:00:08,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:00:08,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,676 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2023-08-30 04:00:08,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:08,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:00:08,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:00:08,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:00:08,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:00:08,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:00:08,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:00:08,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:00:08,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (1/1) ... [2023-08-30 04:00:08,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:08,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:00:08,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 04:00:08,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 04:00:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 04:00:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:00:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:00:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:00:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:00:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:00:08,797 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:00:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:00:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:00:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:00:08,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:00:08,799 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 04:00:08,987 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:00:08,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:00:09,294 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:00:09,301 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:00:09,301 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:00:09,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:09 BoogieIcfgContainer [2023-08-30 04:00:09,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:00:09,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:00:09,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:00:09,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:00:09,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:00:08" (1/3) ... [2023-08-30 04:00:09,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527cec7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:09, skipping insertion in model container [2023-08-30 04:00:09,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:08" (2/3) ... [2023-08-30 04:00:09,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527cec7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:09, skipping insertion in model container [2023-08-30 04:00:09,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:09" (3/3) ... [2023-08-30 04:00:09,321 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-08-30 04:00:09,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:00:09,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-30 04:00:09,335 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:00:09,411 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 04:00:09,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 286 flow [2023-08-30 04:00:09,578 INFO L130 PetriNetUnfolder]: 4/138 cut-off events. [2023-08-30 04:00:09,583 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 04:00:09,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 4/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 04:00:09,589 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 286 flow [2023-08-30 04:00:09,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 134 transitions, 274 flow [2023-08-30 04:00:09,597 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:00:09,605 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 134 transitions, 274 flow [2023-08-30 04:00:09,608 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 134 transitions, 274 flow [2023-08-30 04:00:09,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 134 transitions, 274 flow [2023-08-30 04:00:09,635 INFO L130 PetriNetUnfolder]: 4/134 cut-off events. [2023-08-30 04:00:09,635 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 04:00:09,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 134 events. 4/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-08-30 04:00:09,638 INFO L119 LiptonReduction]: Number of co-enabled transitions 3630 [2023-08-30 04:00:13,114 INFO L134 LiptonReduction]: Checked pairs total: 11011 [2023-08-30 04:00:13,115 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-30 04:00:13,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:00:13,134 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;@854d2ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:00:13,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 04:00:13,136 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 04:00:13,137 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:13,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:13,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:00:13,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:13,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:13,142 INFO L85 PathProgramCache]: Analyzing trace with hash 471, now seen corresponding path program 1 times [2023-08-30 04:00:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:13,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028335457] [2023-08-30 04:00:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:13,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:13,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:13,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028335457] [2023-08-30 04:00:13,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028335457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:13,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:13,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:00:13,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180430956] [2023-08-30 04:00:13,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:13,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:00:13,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:00:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:00:13,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 248 [2023-08-30 04:00:13,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 98 flow. Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:13,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 248 [2023-08-30 04:00:13,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:13,494 INFO L130 PetriNetUnfolder]: 264/614 cut-off events. [2023-08-30 04:00:13,494 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 04:00:13,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 614 events. 264/614 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2734 event pairs, 264 based on Foata normal form. 13/530 useless extension candidates. Maximal degree in co-relation 1172. Up to 567 conditions per place. [2023-08-30 04:00:13,501 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 37 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-08-30 04:00:13,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 168 flow [2023-08-30 04:00:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:00:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:00:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2023-08-30 04:00:13,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6028225806451613 [2023-08-30 04:00:13,532 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2023-08-30 04:00:13,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2023-08-30 04:00:13,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:13,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2023-08-30 04:00:13,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,550 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,552 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 98 flow. Second operand 2 states and 299 transitions. [2023-08-30 04:00:13,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 168 flow [2023-08-30 04:00:13,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:13,559 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 86 flow [2023-08-30 04:00:13,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-08-30 04:00:13,565 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 04:00:13,566 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 86 flow [2023-08-30 04:00:13,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:13,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 04:00:13,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:00:13,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:13,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash 446192410, now seen corresponding path program 1 times [2023-08-30 04:00:13,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:13,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981324758] [2023-08-30 04:00:13,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:13,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:13,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981324758] [2023-08-30 04:00:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981324758] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:13,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:13,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610084452] [2023-08-30 04:00:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:13,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:13,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:13,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:13,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-08-30 04:00:13,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:13,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-08-30 04:00:13,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:13,930 INFO L130 PetriNetUnfolder]: 243/606 cut-off events. [2023-08-30 04:00:13,930 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:13,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 606 events. 243/606 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2844 event pairs, 63 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 1130. Up to 430 conditions per place. [2023-08-30 04:00:13,934 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 53 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2023-08-30 04:00:13,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 232 flow [2023-08-30 04:00:13,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:13,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-08-30 04:00:13,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860215053763441 [2023-08-30 04:00:13,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-08-30 04:00:13,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-08-30 04:00:13,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:13,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-08-30 04:00:13,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,942 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 86 flow. Second operand 3 states and 436 transitions. [2023-08-30 04:00:13,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 232 flow [2023-08-30 04:00:13,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:00:13,944 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 98 flow [2023-08-30 04:00:13,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-08-30 04:00:13,945 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 04:00:13,945 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 98 flow [2023-08-30 04:00:13,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:13,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:13,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:13,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 04:00:13,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:13,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash -445830245, now seen corresponding path program 1 times [2023-08-30 04:00:13,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:13,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210117942] [2023-08-30 04:00:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:13,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:14,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:14,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210117942] [2023-08-30 04:00:14,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210117942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:14,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:14,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:00:14,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669061401] [2023-08-30 04:00:14,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:14,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:14,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:14,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:14,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 248 [2023-08-30 04:00:14,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:14,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 248 [2023-08-30 04:00:14,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:14,248 INFO L130 PetriNetUnfolder]: 397/849 cut-off events. [2023-08-30 04:00:14,248 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-30 04:00:14,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1815 conditions, 849 events. 397/849 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3916 event pairs, 208 based on Foata normal form. 6/795 useless extension candidates. Maximal degree in co-relation 1810. Up to 690 conditions per place. [2023-08-30 04:00:14,255 INFO L137 encePairwiseOnDemand]: 232/248 looper letters, 62 selfloop transitions, 16 changer transitions 0/78 dead transitions. [2023-08-30 04:00:14,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 78 transitions, 335 flow [2023-08-30 04:00:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-30 04:00:14,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5672043010752689 [2023-08-30 04:00:14,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-30 04:00:14,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-30 04:00:14,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:14,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-30 04:00:14,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,263 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 98 flow. Second operand 3 states and 422 transitions. [2023-08-30 04:00:14,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 78 transitions, 335 flow [2023-08-30 04:00:14,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 78 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:14,267 INFO L231 Difference]: Finished difference. Result has 49 places, 56 transitions, 198 flow [2023-08-30 04:00:14,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=49, PETRI_TRANSITIONS=56} [2023-08-30 04:00:14,269 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2023-08-30 04:00:14,269 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 56 transitions, 198 flow [2023-08-30 04:00:14,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:14,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:14,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 04:00:14,271 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:14,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash 203438565, now seen corresponding path program 1 times [2023-08-30 04:00:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:14,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108569518] [2023-08-30 04:00:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:14,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:14,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108569518] [2023-08-30 04:00:14,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108569518] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:14,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:14,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:00:14,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084082161] [2023-08-30 04:00:14,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:14,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 04:00:14,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 04:00:14,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 04:00:14,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 248 [2023-08-30 04:00:14,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 56 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 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) [2023-08-30 04:00:14,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:14,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 248 [2023-08-30 04:00:14,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:14,707 INFO L130 PetriNetUnfolder]: 237/572 cut-off events. [2023-08-30 04:00:14,707 INFO L131 PetriNetUnfolder]: For 114/123 co-relation queries the response was YES. [2023-08-30 04:00:14,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1444 conditions, 572 events. 237/572 cut-off events. For 114/123 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2790 event pairs, 80 based on Foata normal form. 15/531 useless extension candidates. Maximal degree in co-relation 1438. Up to 301 conditions per place. [2023-08-30 04:00:14,710 INFO L137 encePairwiseOnDemand]: 239/248 looper letters, 66 selfloop transitions, 13 changer transitions 0/84 dead transitions. [2023-08-30 04:00:14,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 426 flow [2023-08-30 04:00:14,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:14,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 558 transitions. [2023-08-30 04:00:14,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5625 [2023-08-30 04:00:14,719 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 558 transitions. [2023-08-30 04:00:14,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 558 transitions. [2023-08-30 04:00:14,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:14,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 558 transitions. [2023-08-30 04:00:14,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,723 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,724 INFO L175 Difference]: Start difference. First operand has 49 places, 56 transitions, 198 flow. Second operand 4 states and 558 transitions. [2023-08-30 04:00:14,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 426 flow [2023-08-30 04:00:14,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 84 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:14,728 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 236 flow [2023-08-30 04:00:14,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2023-08-30 04:00:14,729 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2023-08-30 04:00:14,729 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 236 flow [2023-08-30 04:00:14,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 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) [2023-08-30 04:00:14,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:14,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:14,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 04:00:14,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:14,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:14,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1045151887, now seen corresponding path program 1 times [2023-08-30 04:00:14,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:14,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567801129] [2023-08-30 04:00:14,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:14,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:14,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:14,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567801129] [2023-08-30 04:00:14,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567801129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:14,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:14,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:14,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961367142] [2023-08-30 04:00:14,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:14,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:14,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:14,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-08-30 04:00:14,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:14,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-08-30 04:00:14,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:14,908 INFO L130 PetriNetUnfolder]: 227/558 cut-off events. [2023-08-30 04:00:14,908 INFO L131 PetriNetUnfolder]: For 171/172 co-relation queries the response was YES. [2023-08-30 04:00:14,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1534 conditions, 558 events. 227/558 cut-off events. For 171/172 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2595 event pairs, 94 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 1527. Up to 271 conditions per place. [2023-08-30 04:00:14,911 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 66 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2023-08-30 04:00:14,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 77 transitions, 443 flow [2023-08-30 04:00:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-08-30 04:00:14,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860215053763441 [2023-08-30 04:00:14,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-08-30 04:00:14,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-08-30 04:00:14,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:14,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-08-30 04:00:14,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,917 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 236 flow. Second operand 3 states and 436 transitions. [2023-08-30 04:00:14,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 77 transitions, 443 flow [2023-08-30 04:00:14,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 77 transitions, 442 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:14,924 INFO L231 Difference]: Finished difference. Result has 54 places, 57 transitions, 243 flow [2023-08-30 04:00:14,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=54, PETRI_TRANSITIONS=57} [2023-08-30 04:00:14,926 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-08-30 04:00:14,926 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 57 transitions, 243 flow [2023-08-30 04:00:14,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:14,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:14,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:14,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 04:00:14,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:14,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1600067723, now seen corresponding path program 1 times [2023-08-30 04:00:14,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:14,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82796493] [2023-08-30 04:00:14,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:14,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:15,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82796493] [2023-08-30 04:00:15,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82796493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:15,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:15,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 04:00:15,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069143174] [2023-08-30 04:00:15,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:15,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 04:00:15,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:15,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 04:00:15,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 04:00:15,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-08-30 04:00:15,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 57 transitions, 243 flow. Second operand has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:15,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-08-30 04:00:15,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:15,148 INFO L130 PetriNetUnfolder]: 201/512 cut-off events. [2023-08-30 04:00:15,148 INFO L131 PetriNetUnfolder]: For 176/177 co-relation queries the response was YES. [2023-08-30 04:00:15,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 512 events. 201/512 cut-off events. For 176/177 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2298 event pairs, 160 based on Foata normal form. 30/499 useless extension candidates. Maximal degree in co-relation 1443. Up to 404 conditions per place. [2023-08-30 04:00:15,151 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 53 selfloop transitions, 3 changer transitions 0/65 dead transitions. [2023-08-30 04:00:15,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 401 flow [2023-08-30 04:00:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:15,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2023-08-30 04:00:15,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5524193548387096 [2023-08-30 04:00:15,154 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2023-08-30 04:00:15,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2023-08-30 04:00:15,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:15,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2023-08-30 04:00:15,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,158 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,158 INFO L175 Difference]: Start difference. First operand has 54 places, 57 transitions, 243 flow. Second operand 4 states and 548 transitions. [2023-08-30 04:00:15,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 401 flow [2023-08-30 04:00:15,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:15,161 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 242 flow [2023-08-30 04:00:15,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-08-30 04:00:15,162 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-08-30 04:00:15,162 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 242 flow [2023-08-30 04:00:15,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:15,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:15,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 04:00:15,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:15,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:15,164 INFO L85 PathProgramCache]: Analyzing trace with hash 730015939, now seen corresponding path program 1 times [2023-08-30 04:00:15,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:15,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564028011] [2023-08-30 04:00:15,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:15,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:15,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564028011] [2023-08-30 04:00:15,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564028011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:15,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:15,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992796839] [2023-08-30 04:00:15,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:15,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:15,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:15,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 248 [2023-08-30 04:00:15,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:15,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 248 [2023-08-30 04:00:15,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:15,390 INFO L130 PetriNetUnfolder]: 182/467 cut-off events. [2023-08-30 04:00:15,391 INFO L131 PetriNetUnfolder]: For 163/164 co-relation queries the response was YES. [2023-08-30 04:00:15,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1313 conditions, 467 events. 182/467 cut-off events. For 163/164 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2030 event pairs, 159 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 1304. Up to 412 conditions per place. [2023-08-30 04:00:15,393 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 41 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-08-30 04:00:15,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 52 transitions, 308 flow [2023-08-30 04:00:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2023-08-30 04:00:15,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5470430107526881 [2023-08-30 04:00:15,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2023-08-30 04:00:15,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2023-08-30 04:00:15,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:15,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2023-08-30 04:00:15,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,399 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 242 flow. Second operand 3 states and 407 transitions. [2023-08-30 04:00:15,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 52 transitions, 308 flow [2023-08-30 04:00:15,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 52 transitions, 298 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 04:00:15,402 INFO L231 Difference]: Finished difference. Result has 51 places, 52 transitions, 216 flow [2023-08-30 04:00:15,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=51, PETRI_TRANSITIONS=52} [2023-08-30 04:00:15,403 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 04:00:15,403 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 52 transitions, 216 flow [2023-08-30 04:00:15,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:15,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:15,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 04:00:15,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:15,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:15,405 INFO L85 PathProgramCache]: Analyzing trace with hash 730015938, now seen corresponding path program 1 times [2023-08-30 04:00:15,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:15,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293034227] [2023-08-30 04:00:15,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:15,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:15,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:15,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293034227] [2023-08-30 04:00:15,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293034227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:15,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:15,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824652346] [2023-08-30 04:00:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:15,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:15,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:15,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:15,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:15,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 248 [2023-08-30 04:00:15,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 52 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:15,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 248 [2023-08-30 04:00:15,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:15,577 INFO L130 PetriNetUnfolder]: 163/424 cut-off events. [2023-08-30 04:00:15,578 INFO L131 PetriNetUnfolder]: For 139/140 co-relation queries the response was YES. [2023-08-30 04:00:15,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 424 events. 163/424 cut-off events. For 139/140 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1782 event pairs, 145 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 1126. Up to 376 conditions per place. [2023-08-30 04:00:15,580 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 38 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-08-30 04:00:15,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 276 flow [2023-08-30 04:00:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-30 04:00:15,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5336021505376344 [2023-08-30 04:00:15,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-30 04:00:15,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-30 04:00:15,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:15,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-30 04:00:15,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,586 INFO L175 Difference]: Start difference. First operand has 51 places, 52 transitions, 216 flow. Second operand 3 states and 397 transitions. [2023-08-30 04:00:15,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 276 flow [2023-08-30 04:00:15,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:15,588 INFO L231 Difference]: Finished difference. Result has 50 places, 49 transitions, 196 flow [2023-08-30 04:00:15,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=49} [2023-08-30 04:00:15,588 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2023-08-30 04:00:15,589 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 196 flow [2023-08-30 04:00:15,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:15,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:15,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 04:00:15,590 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:15,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash 730281356, now seen corresponding path program 1 times [2023-08-30 04:00:15,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:15,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258224542] [2023-08-30 04:00:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:15,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:15,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:15,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258224542] [2023-08-30 04:00:15,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258224542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:15,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:15,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:00:15,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885626588] [2023-08-30 04:00:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:15,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:15,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:15,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:15,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 248 [2023-08-30 04:00:15,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:15,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 248 [2023-08-30 04:00:15,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:15,785 INFO L130 PetriNetUnfolder]: 113/363 cut-off events. [2023-08-30 04:00:15,786 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-08-30 04:00:15,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 363 events. 113/363 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1575 event pairs, 40 based on Foata normal form. 46/409 useless extension candidates. Maximal degree in co-relation 1046. Up to 201 conditions per place. [2023-08-30 04:00:15,788 INFO L137 encePairwiseOnDemand]: 228/248 looper letters, 49 selfloop transitions, 29 changer transitions 0/78 dead transitions. [2023-08-30 04:00:15,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 78 transitions, 479 flow [2023-08-30 04:00:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-08-30 04:00:15,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5309139784946236 [2023-08-30 04:00:15,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-08-30 04:00:15,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-08-30 04:00:15,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:15,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-08-30 04:00:15,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,794 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 196 flow. Second operand 3 states and 395 transitions. [2023-08-30 04:00:15,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 78 transitions, 479 flow [2023-08-30 04:00:15,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 78 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:15,796 INFO L231 Difference]: Finished difference. Result has 51 places, 65 transitions, 397 flow [2023-08-30 04:00:15,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=51, PETRI_TRANSITIONS=65} [2023-08-30 04:00:15,797 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 04:00:15,797 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 65 transitions, 397 flow [2023-08-30 04:00:15,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:15,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:15,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:15,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 04:00:15,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:15,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:15,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1163818032, now seen corresponding path program 1 times [2023-08-30 04:00:15,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:15,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887688701] [2023-08-30 04:00:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:15,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:15,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887688701] [2023-08-30 04:00:15,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887688701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:15,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 04:00:15,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547162514] [2023-08-30 04:00:15,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:15,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 04:00:15,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:15,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 04:00:15,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 04:00:16,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 248 [2023-08-30 04:00:16,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 65 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:16,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 248 [2023-08-30 04:00:16,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:16,173 INFO L130 PetriNetUnfolder]: 90/301 cut-off events. [2023-08-30 04:00:16,173 INFO L131 PetriNetUnfolder]: For 257/257 co-relation queries the response was YES. [2023-08-30 04:00:16,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 301 events. 90/301 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1238 event pairs, 27 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 1106. Up to 261 conditions per place. [2023-08-30 04:00:16,175 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-08-30 04:00:16,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 492 flow [2023-08-30 04:00:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2023-08-30 04:00:16,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49798387096774194 [2023-08-30 04:00:16,177 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2023-08-30 04:00:16,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2023-08-30 04:00:16,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:16,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2023-08-30 04:00:16,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,181 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,181 INFO L175 Difference]: Start difference. First operand has 51 places, 65 transitions, 397 flow. Second operand 4 states and 494 transitions. [2023-08-30 04:00:16,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 492 flow [2023-08-30 04:00:16,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 455 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:16,183 INFO L231 Difference]: Finished difference. Result has 51 places, 54 transitions, 292 flow [2023-08-30 04:00:16,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=51, PETRI_TRANSITIONS=54} [2023-08-30 04:00:16,184 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 04:00:16,184 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 54 transitions, 292 flow [2023-08-30 04:00:16,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:16,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:16,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 04:00:16,185 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:16,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:16,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1802471479, now seen corresponding path program 1 times [2023-08-30 04:00:16,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475914494] [2023-08-30 04:00:16,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:16,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:16,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:16,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475914494] [2023-08-30 04:00:16,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475914494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:16,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:16,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 04:00:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957265988] [2023-08-30 04:00:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:16,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 04:00:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:16,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 04:00:16,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 04:00:16,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 248 [2023-08-30 04:00:16,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 54 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:16,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 248 [2023-08-30 04:00:16,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:16,608 INFO L130 PetriNetUnfolder]: 38/189 cut-off events. [2023-08-30 04:00:16,608 INFO L131 PetriNetUnfolder]: For 207/207 co-relation queries the response was YES. [2023-08-30 04:00:16,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 189 events. 38/189 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 643 event pairs, 8 based on Foata normal form. 14/203 useless extension candidates. Maximal degree in co-relation 658. Up to 121 conditions per place. [2023-08-30 04:00:16,609 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 49 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2023-08-30 04:00:16,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 440 flow [2023-08-30 04:00:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2023-08-30 04:00:16,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49899193548387094 [2023-08-30 04:00:16,611 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2023-08-30 04:00:16,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2023-08-30 04:00:16,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:16,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2023-08-30 04:00:16,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,614 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,615 INFO L175 Difference]: Start difference. First operand has 51 places, 54 transitions, 292 flow. Second operand 4 states and 495 transitions. [2023-08-30 04:00:16,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 440 flow [2023-08-30 04:00:16,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 412 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-08-30 04:00:16,617 INFO L231 Difference]: Finished difference. Result has 51 places, 51 transitions, 268 flow [2023-08-30 04:00:16,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=51, PETRI_TRANSITIONS=51} [2023-08-30 04:00:16,617 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 04:00:16,618 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 51 transitions, 268 flow [2023-08-30 04:00:16,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:16,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:16,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 04:00:16,618 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:16,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:16,619 INFO L85 PathProgramCache]: Analyzing trace with hash -605099031, now seen corresponding path program 1 times [2023-08-30 04:00:16,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:16,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701396945] [2023-08-30 04:00:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:16,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:16,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701396945] [2023-08-30 04:00:16,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701396945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:16,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:16,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 04:00:16,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185590650] [2023-08-30 04:00:16,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:16,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 04:00:16,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 04:00:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 04:00:16,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-08-30 04:00:16,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 51 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:16,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-08-30 04:00:16,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:16,854 INFO L130 PetriNetUnfolder]: 38/187 cut-off events. [2023-08-30 04:00:16,854 INFO L131 PetriNetUnfolder]: For 189/189 co-relation queries the response was YES. [2023-08-30 04:00:16,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 187 events. 38/187 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 610 event pairs, 19 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 626. Up to 133 conditions per place. [2023-08-30 04:00:16,855 INFO L137 encePairwiseOnDemand]: 244/248 looper letters, 49 selfloop transitions, 3 changer transitions 0/60 dead transitions. [2023-08-30 04:00:16,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 60 transitions, 423 flow [2023-08-30 04:00:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:16,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 544 transitions. [2023-08-30 04:00:16,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5483870967741935 [2023-08-30 04:00:16,858 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 544 transitions. [2023-08-30 04:00:16,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 544 transitions. [2023-08-30 04:00:16,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:16,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 544 transitions. [2023-08-30 04:00:16,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,862 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,862 INFO L175 Difference]: Start difference. First operand has 51 places, 51 transitions, 268 flow. Second operand 4 states and 544 transitions. [2023-08-30 04:00:16,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 60 transitions, 423 flow [2023-08-30 04:00:16,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 04:00:16,864 INFO L231 Difference]: Finished difference. Result has 50 places, 50 transitions, 257 flow [2023-08-30 04:00:16,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=50, PETRI_TRANSITIONS=50} [2023-08-30 04:00:16,866 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2023-08-30 04:00:16,866 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 257 flow [2023-08-30 04:00:16,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:16,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:16,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:16,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 04:00:16,868 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-08-30 04:00:16,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash -351743092, now seen corresponding path program 1 times [2023-08-30 04:00:16,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:16,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696573342] [2023-08-30 04:00:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:16,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:17,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:17,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696573342] [2023-08-30 04:00:17,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696573342] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:17,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:17,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:17,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27483955] [2023-08-30 04:00:17,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:17,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:17,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:17,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 248 [2023-08-30 04:00:17,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:17,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:17,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 248 [2023-08-30 04:00:17,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:17,118 INFO L130 PetriNetUnfolder]: 38/186 cut-off events. [2023-08-30 04:00:17,118 INFO L131 PetriNetUnfolder]: For 151/151 co-relation queries the response was YES. [2023-08-30 04:00:17,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 186 events. 38/186 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 603 event pairs, 26 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 619. Up to 168 conditions per place. [2023-08-30 04:00:17,119 INFO L137 encePairwiseOnDemand]: 246/248 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2023-08-30 04:00:17,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 49 transitions, 337 flow [2023-08-30 04:00:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-30 04:00:17,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5456989247311828 [2023-08-30 04:00:17,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-30 04:00:17,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-30 04:00:17,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:17,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-30 04:00:17,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:17,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:17,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:17,123 INFO L175 Difference]: Start difference. First operand has 50 places, 50 transitions, 257 flow. Second operand 3 states and 406 transitions. [2023-08-30 04:00:17,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 49 transitions, 337 flow [2023-08-30 04:00:17,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 331 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 04:00:17,125 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2023-08-30 04:00:17,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2023-08-30 04:00:17,126 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 04:00:17,126 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2023-08-30 04:00:17,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:17,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 10 remaining) [2023-08-30 04:00:17,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (6 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2023-08-30 04:00:17,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2023-08-30 04:00:17,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 04:00:17,131 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:17,133 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:00:17,134 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:00:17,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:00:17 BasicIcfg [2023-08-30 04:00:17,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:00:17,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:00:17,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:00:17,137 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:00:17,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:09" (3/4) ... [2023-08-30 04:00:17,140 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 04:00:17,146 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 04:00:17,150 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 04:00:17,150 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 04:00:17,150 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 04:00:17,151 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 04:00:17,196 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 04:00:17,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:00:17,197 INFO L158 Benchmark]: Toolchain (without parser) took 9040.94ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 54.7MB in the beginning and 138.7MB in the end (delta: -84.0MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,197 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 53.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:17,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.25ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 53.4MB in the end (delta: 1.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.33ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 51.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,198 INFO L158 Benchmark]: Boogie Preprocessor took 49.27ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 49.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,198 INFO L158 Benchmark]: RCFGBuilder took 577.30ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 32.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,198 INFO L158 Benchmark]: TraceAbstraction took 7829.74ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 32.1MB in the beginning and 34.5MB in the end (delta: -2.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,199 INFO L158 Benchmark]: Witness Printer took 59.17ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 34.5MB in the beginning and 138.7MB in the end (delta: -104.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 04:00:17,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 53.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.25ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 53.4MB in the end (delta: 1.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.33ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 51.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.27ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 49.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.30ms. Allocated memory is still 77.6MB. Free memory was 49.5MB in the beginning and 32.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7829.74ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 32.1MB in the beginning and 34.5MB in the end (delta: -2.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 59.17ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 34.5MB in the beginning and 138.7MB in the end (delta: -104.1MB). 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: 3.5s, 134 PlacesBefore, 49 PlacesAfterwards, 134 TransitionsBefore, 46 TransitionsAfterwards, 3630 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 109 TotalNumberOfCompositions, 11011 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3250, independent: 2848, independent conditional: 0, independent unconditional: 2848, dependent: 402, dependent conditional: 0, dependent unconditional: 402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1775, independent: 1705, independent conditional: 0, independent unconditional: 1705, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3250, independent: 1143, independent conditional: 0, independent unconditional: 1143, dependent: 332, dependent conditional: 0, dependent unconditional: 332, unknown: 1775, unknown conditional: 0, unknown unconditional: 1775] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 704]: 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, 171 locations, 10 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: 7.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 897 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 504 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 231 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1548 IncrementalHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 231 mSolverCounterUnsat, 58 mSDtfsCounter, 1548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=397occurred in iteration=9, InterpolantAutomatonStates: 43, 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, 1.3s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 1247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2023-08-30 04:00:17,230 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