./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.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_41-traces-ex-7_unknown_1_pos.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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --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 04:01:04,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:01:04,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:01:04,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:01:04,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:01:04,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:01:04,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:01:04,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:01:04,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:01:04,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:01:04,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:01:04,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:01:04,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:01:04,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:01:04,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:01:04,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:01:04,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:01:04,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:01:04,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:01:04,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:01:04,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:01:04,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:01:04,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:01:04,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:01:04,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:01:04,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:01:04,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:01:04,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:01:04,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:01:04,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:01:04,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:01:04,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:01:04,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:01:04,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:01:04,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:01:04,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:01:04,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:01:04,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:01:04,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:01:04,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:01:04,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:01:04,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:01:04,355 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:01:04,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:01:04,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:01:04,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:01:04,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:01:04,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:01:04,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:01:04,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:01:04,359 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:01:04,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:01:04,360 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:01:04,361 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:01:04,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:01:04,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:01:04,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:01:04,361 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:01:04,362 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:01:04,362 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:01:04,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:01:04,362 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:01:04,362 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:01:04,363 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:01:04,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:01:04,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:01:04,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:01:04,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:01:04,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:01:04,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:01:04,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:01:04,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:01:04,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:01:04,365 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:01:04,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:01:04,365 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:01:04,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:01:04,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:01:04,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:01:04,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:01:04,705 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:01:04,706 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:01:04,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-30 04:01:05,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:01:06,093 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:01:06,096 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-30 04:01:06,115 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eea329a6/bd5ab87e867a442f852444ae0f18663a/FLAGdcee099f5 [2023-08-30 04:01:06,134 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eea329a6/bd5ab87e867a442f852444ae0f18663a [2023-08-30 04:01:06,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:01:06,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:01:06,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:01:06,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:01:06,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:01:06,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ffae2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06, skipping insertion in model container [2023-08-30 04:01:06,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:01:06,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:01:06,374 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2023-08-30 04:01:06,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:01:06,541 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:01:06,554 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2023-08-30 04:01:06,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:01:06,627 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:01:06,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06 WrapperNode [2023-08-30 04:01:06,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:01:06,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:01:06,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:01:06,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:01:06,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,687 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-08-30 04:01:06,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:01:06,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:01:06,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:01:06,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:01:06,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:01:06,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:01:06,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:01:06,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:01:06,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (1/1) ... [2023-08-30 04:01:06,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:01:06,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:01:06,774 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 04:01:06,800 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 04:01:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:01:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:01:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:01:06,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:01:06,816 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 04:01:06,939 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:01:06,941 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:01:07,107 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:01:07,113 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:01:07,113 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:01:07,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:01:07 BoogieIcfgContainer [2023-08-30 04:01:07,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:01:07,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:01:07,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:01:07,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:01:07,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:01:06" (1/3) ... [2023-08-30 04:01:07,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265c766e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:01:07, skipping insertion in model container [2023-08-30 04:01:07,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:06" (2/3) ... [2023-08-30 04:01:07,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265c766e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:01:07, skipping insertion in model container [2023-08-30 04:01:07,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:01:07" (3/3) ... [2023-08-30 04:01:07,121 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-30 04:01:07,135 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:01:07,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:01:07,136 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:01:07,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:01:07,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2023-08-30 04:01:07,252 INFO L130 PetriNetUnfolder]: 1/65 cut-off events. [2023-08-30 04:01:07,253 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:07,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-08-30 04:01:07,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 66 transitions, 137 flow [2023-08-30 04:01:07,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2023-08-30 04:01:07,262 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:01:07,270 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2023-08-30 04:01:07,272 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2023-08-30 04:01:07,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2023-08-30 04:01:07,307 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2023-08-30 04:01:07,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:07,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-08-30 04:01:07,312 INFO L119 LiptonReduction]: Number of co-enabled transitions 380 [2023-08-30 04:01:09,797 INFO L134 LiptonReduction]: Checked pairs total: 977 [2023-08-30 04:01:09,797 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-30 04:01:09,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:01:09,814 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;@3eb601c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:01:09,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:01:09,815 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 04:01:09,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:09,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:09,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:01:09,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:09,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:09,821 INFO L85 PathProgramCache]: Analyzing trace with hash 239, now seen corresponding path program 1 times [2023-08-30 04:01:09,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:09,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791396375] [2023-08-30 04:01:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:09,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:09,926 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 04:01:09,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:01:09,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791396375] [2023-08-30 04:01:09,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791396375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:09,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:09,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:01:09,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818588806] [2023-08-30 04:01:09,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:09,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:01:09,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:01:09,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:01:09,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:01:09,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 127 [2023-08-30 04:01:09,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 33 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 04:01:09,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:09,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 127 [2023-08-30 04:01:09,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:10,005 INFO L130 PetriNetUnfolder]: 15/44 cut-off events. [2023-08-30 04:01:10,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:10,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 44 events. 15/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 112 event pairs, 15 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 80. Up to 41 conditions per place. [2023-08-30 04:01:10,007 INFO L137 encePairwiseOnDemand]: 124/127 looper letters, 10 selfloop transitions, 0 changer transitions 0/12 dead transitions. [2023-08-30 04:01:10,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 12 transitions, 47 flow [2023-08-30 04:01:10,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:01:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:01:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 04:01:10,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.547244094488189 [2023-08-30 04:01:10,018 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 04:01:10,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 04:01:10,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:10,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 04:01:10,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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 04:01:10,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 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 04:01:10,027 INFO L81 ComplementDD]: Finished complementDD. Result 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 04:01:10,029 INFO L175 Difference]: Start difference. First operand has 18 places, 15 transitions, 33 flow. Second operand 2 states and 139 transitions. [2023-08-30 04:01:10,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 12 transitions, 47 flow [2023-08-30 04:01:10,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 12 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:01:10,032 INFO L231 Difference]: Finished difference. Result has 16 places, 12 transitions, 26 flow [2023-08-30 04:01:10,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=26, PETRI_PLACES=16, PETRI_TRANSITIONS=12} [2023-08-30 04:01:10,036 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2023-08-30 04:01:10,037 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 26 flow [2023-08-30 04:01:10,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 04:01:10,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:10,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:01:10,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:01:10,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:10,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1576489747, now seen corresponding path program 1 times [2023-08-30 04:01:10,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:10,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387428507] [2023-08-30 04:01:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:10,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:10,296 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 04:01:10,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:01:10,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387428507] [2023-08-30 04:01:10,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387428507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:10,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:10,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:01:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305656572] [2023-08-30 04:01:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:10,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:01:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:01:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:01:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:01:10,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 127 [2023-08-30 04:01:10,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:10,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:10,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 127 [2023-08-30 04:01:10,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:10,354 INFO L130 PetriNetUnfolder]: 16/51 cut-off events. [2023-08-30 04:01:10,354 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:10,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 51 events. 16/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 9 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 99. Up to 27 conditions per place. [2023-08-30 04:01:10,356 INFO L137 encePairwiseOnDemand]: 123/127 looper letters, 13 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-08-30 04:01:10,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 17 transitions, 68 flow [2023-08-30 04:01:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:01:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:01:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-08-30 04:01:10,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5249343832020997 [2023-08-30 04:01:10,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-08-30 04:01:10,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-08-30 04:01:10,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:10,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-08-30 04:01:10,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 04:01:10,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 04:01:10,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 04:01:10,364 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 26 flow. Second operand 3 states and 200 transitions. [2023-08-30 04:01:10,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 17 transitions, 68 flow [2023-08-30 04:01:10,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:01:10,366 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 44 flow [2023-08-30 04:01:10,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-08-30 04:01:10,367 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-08-30 04:01:10,367 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 44 flow [2023-08-30 04:01:10,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:10,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:10,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:01:10,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 04:01:10,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:10,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:10,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1576489744, now seen corresponding path program 1 times [2023-08-30 04:01:10,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:10,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586878794] [2023-08-30 04:01:10,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:10,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:10,496 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 04:01:10,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:01:10,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586878794] [2023-08-30 04:01:10,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586878794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:10,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:10,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:01:10,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755823578] [2023-08-30 04:01:10,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:10,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:01:10,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:01:10,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:01:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:01:10,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 127 [2023-08-30 04:01:10,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 04:01:10,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:10,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 127 [2023-08-30 04:01:10,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:10,549 INFO L130 PetriNetUnfolder]: 10/33 cut-off events. [2023-08-30 04:01:10,549 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 04:01:10,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 33 events. 10/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 10 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 72. Up to 29 conditions per place. [2023-08-30 04:01:10,549 INFO L137 encePairwiseOnDemand]: 125/127 looper letters, 8 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-30 04:01:10,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 52 flow [2023-08-30 04:01:10,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:01:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:01:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-08-30 04:01:10,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49081364829396323 [2023-08-30 04:01:10,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-08-30 04:01:10,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-08-30 04:01:10,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:10,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-08-30 04:01:10,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 04:01:10,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 04:01:10,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 04:01:10,559 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 44 flow. Second operand 3 states and 187 transitions. [2023-08-30 04:01:10,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 52 flow [2023-08-30 04:01:10,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 04:01:10,560 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 30 flow [2023-08-30 04:01:10,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2023-08-30 04:01:10,562 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2023-08-30 04:01:10,562 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 30 flow [2023-08-30 04:01:10,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 04:01:10,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:10,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:10,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 04:01:10,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:10,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:10,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1763131108, now seen corresponding path program 1 times [2023-08-30 04:01:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:10,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399904407] [2023-08-30 04:01:10,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:10,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:10,665 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 04:01:10,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:01:10,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399904407] [2023-08-30 04:01:10,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399904407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:10,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:10,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:01:10,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437908648] [2023-08-30 04:01:10,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:10,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:01:10,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:01:10,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:01:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:01:10,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 127 [2023-08-30 04:01:10,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 04:01:10,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:10,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 127 [2023-08-30 04:01:10,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:10,731 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2023-08-30 04:01:10,731 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 04:01:10,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 30 events. 6/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 2 based on Foata normal form. 4/34 useless extension candidates. Maximal degree in co-relation 66. Up to 18 conditions per place. [2023-08-30 04:01:10,732 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 9 selfloop transitions, 5 changer transitions 0/15 dead transitions. [2023-08-30 04:01:10,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 68 flow [2023-08-30 04:01:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:01:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:01:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-08-30 04:01:10,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49081364829396323 [2023-08-30 04:01:10,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-08-30 04:01:10,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-08-30 04:01:10,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:10,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-08-30 04:01:10,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 04:01:10,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 04:01:10,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 04:01:10,741 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 30 flow. Second operand 3 states and 187 transitions. [2023-08-30 04:01:10,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 68 flow [2023-08-30 04:01:10,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:01:10,742 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 52 flow [2023-08-30 04:01:10,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-08-30 04:01:10,744 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-08-30 04:01:10,744 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 52 flow [2023-08-30 04:01:10,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 04:01:10,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:10,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:10,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 04:01:10,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:10,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:10,746 INFO L85 PathProgramCache]: Analyzing trace with hash 260460892, now seen corresponding path program 2 times [2023-08-30 04:01:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:10,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638756664] [2023-08-30 04:01:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:10,883 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 04:01:10,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:01:10,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638756664] [2023-08-30 04:01:10,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638756664] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:10,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:10,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 04:01:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132007640] [2023-08-30 04:01:10,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:10,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 04:01:10,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:01:10,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 04:01:10,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 04:01:10,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 127 [2023-08-30 04:01:10,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:10,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:10,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 127 [2023-08-30 04:01:10,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:11,007 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2023-08-30 04:01:11,008 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 04:01:11,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 25 events. 4/25 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 76. Up to 15 conditions per place. [2023-08-30 04:01:11,008 INFO L137 encePairwiseOnDemand]: 123/127 looper letters, 10 selfloop transitions, 4 changer transitions 1/16 dead transitions. [2023-08-30 04:01:11,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 96 flow [2023-08-30 04:01:11,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:01:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:01:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2023-08-30 04:01:11,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46653543307086615 [2023-08-30 04:01:11,009 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 237 transitions. [2023-08-30 04:01:11,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 237 transitions. [2023-08-30 04:01:11,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:11,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 237 transitions. [2023-08-30 04:01:11,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:11,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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 04:01:11,012 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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 04:01:11,012 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 52 flow. Second operand 4 states and 237 transitions. [2023-08-30 04:01:11,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 96 flow [2023-08-30 04:01:11,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:01:11,014 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 55 flow [2023-08-30 04:01:11,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-08-30 04:01:11,015 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-08-30 04:01:11,015 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 55 flow [2023-08-30 04:01:11,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:11,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:11,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:11,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 04:01:11,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:11,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash 920422271, now seen corresponding path program 1 times [2023-08-30 04:01:11,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:11,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284649364] [2023-08-30 04:01:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:11,137 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 04:01:11,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:01:11,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284649364] [2023-08-30 04:01:11,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284649364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:11,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:11,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:01:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180164477] [2023-08-30 04:01:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 04:01:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:01:11,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 04:01:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 04:01:11,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 127 [2023-08-30 04:01:11,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 04:01:11,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:11,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 127 [2023-08-30 04:01:11,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:11,196 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 04:01:11,199 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 04:01:11,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-08-30 04:01:11,200 INFO L137 encePairwiseOnDemand]: 122/127 looper letters, 4 selfloop transitions, 5 changer transitions 0/11 dead transitions. [2023-08-30 04:01:11,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 65 flow [2023-08-30 04:01:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:01:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:01:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2023-08-30 04:01:11,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.468503937007874 [2023-08-30 04:01:11,202 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 238 transitions. [2023-08-30 04:01:11,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 238 transitions. [2023-08-30 04:01:11,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:11,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 238 transitions. [2023-08-30 04:01:11,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:11,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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 04:01:11,205 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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 04:01:11,205 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 55 flow. Second operand 4 states and 238 transitions. [2023-08-30 04:01:11,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 65 flow [2023-08-30 04:01:11,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 11 transitions, 55 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-30 04:01:11,207 INFO L231 Difference]: Finished difference. Result has 22 places, 11 transitions, 47 flow [2023-08-30 04:01:11,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=47, PETRI_PLACES=22, PETRI_TRANSITIONS=11} [2023-08-30 04:01:11,209 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-08-30 04:01:11,210 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 11 transitions, 47 flow [2023-08-30 04:01:11,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 04:01:11,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:11,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:11,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 04:01:11,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:11,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1543089406, now seen corresponding path program 1 times [2023-08-30 04:01:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:01:11,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152282176] [2023-08-30 04:01:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:11,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:01:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:01:11,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 04:01:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:01:11,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 04:01:11,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 04:01:11,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-08-30 04:01:11,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:01:11,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-08-30 04:01:11,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:01:11,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:01:11,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 04:01:11,282 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-30 04:01:11,287 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:01:11,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:01:11,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:01:11 BasicIcfg [2023-08-30 04:01:11,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:01:11,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:01:11,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:01:11,310 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:01:11,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:01:07" (3/4) ... [2023-08-30 04:01:11,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 04:01:11,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:01:11,313 INFO L158 Benchmark]: Toolchain (without parser) took 5175.38ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 41.9MB in the beginning and 39.5MB in the end (delta: 2.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-08-30 04:01:11,314 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 30.4MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:11,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.75ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 40.8MB in the end (delta: 853.7kB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-08-30 04:01:11,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.23ms. Allocated memory is still 71.3MB. Free memory was 40.6MB in the beginning and 38.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:01:11,315 INFO L158 Benchmark]: Boogie Preprocessor took 39.80ms. Allocated memory is still 71.3MB. Free memory was 38.8MB in the beginning and 37.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:11,315 INFO L158 Benchmark]: RCFGBuilder took 385.99ms. Allocated memory is still 71.3MB. Free memory was 37.4MB in the beginning and 42.1MB in the end (delta: -4.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-08-30 04:01:11,315 INFO L158 Benchmark]: TraceAbstraction took 4192.63ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 41.7MB in the beginning and 39.8MB in the end (delta: 1.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-08-30 04:01:11,316 INFO L158 Benchmark]: Witness Printer took 3.29ms. Allocated memory is still 104.9MB. Free memory was 39.8MB in the beginning and 39.5MB in the end (delta: 263.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:11,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 30.4MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.75ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 40.8MB in the end (delta: 853.7kB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.23ms. Allocated memory is still 71.3MB. Free memory was 40.6MB in the beginning and 38.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.80ms. Allocated memory is still 71.3MB. Free memory was 38.8MB in the beginning and 37.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.99ms. Allocated memory is still 71.3MB. Free memory was 37.4MB in the beginning and 42.1MB in the end (delta: -4.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4192.63ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 41.7MB in the beginning and 39.8MB in the end (delta: 1.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.29ms. Allocated memory is still 104.9MB. Free memory was 39.8MB in the beginning and 39.5MB in the end (delta: 263.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 64 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 15 TransitionsAfterwards, 380 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 977 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 457, independent: 351, independent conditional: 0, independent unconditional: 351, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 223, independent: 202, independent conditional: 0, independent unconditional: 202, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 457, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 223, unknown conditional: 0, unknown unconditional: 223] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, D={4:0}, arg={0:0}, arg={0:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, \result={0:0}, arg={0:0}, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 32 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 04:01:11,348 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_41-traces-ex-7_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --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 04:01:13,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:01:13,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:01:13,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:01:13,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:01:13,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:01:13,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:01:13,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:01:13,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:01:13,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:01:13,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:01:13,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:01:13,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:01:13,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:01:13,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:01:13,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:01:13,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:01:13,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:01:13,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:01:13,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:01:13,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:01:13,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:01:13,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:01:13,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:01:13,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:01:13,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:01:13,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:01:13,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:01:13,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:01:13,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:01:13,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:01:13,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:01:13,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:01:13,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:01:13,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:01:13,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:01:13,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:01:13,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:01:13,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:01:13,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:01:13,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:01:13,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 04:01:13,457 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:01:13,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:01:13,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:01:13,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:01:13,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:01:13,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:01:13,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:01:13,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:01:13,460 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:01:13,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:01:13,460 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:01:13,460 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:01:13,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:01:13,461 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:01:13,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 04:01:13,462 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 04:01:13,462 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:01:13,462 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:01:13,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:01:13,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:01:13,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:01:13,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:01:13,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:01:13,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:01:13,463 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 04:01:13,463 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 04:01:13,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:01:13,464 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:01:13,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:01:13,464 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 04:01:13,464 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:01:13,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:01:13,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:01:13,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:01:13,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:01:13,834 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:01:13,834 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:01:13,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-30 04:01:15,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:01:15,368 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:01:15,375 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-30 04:01:15,399 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73cd3df3e/b911a8e0c4934ac09adfe2ee8fe1a6ae/FLAGee77c002a [2023-08-30 04:01:15,414 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73cd3df3e/b911a8e0c4934ac09adfe2ee8fe1a6ae [2023-08-30 04:01:15,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:01:15,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:01:15,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:01:15,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:01:15,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:01:15,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3be651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15, skipping insertion in model container [2023-08-30 04:01:15,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:01:15,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:01:15,622 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2023-08-30 04:01:15,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:01:15,781 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:01:15,795 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2023-08-30 04:01:15,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:01:15,911 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:01:15,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15 WrapperNode [2023-08-30 04:01:15,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:01:15,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:01:15,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:01:15,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:01:15,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,956 INFO L138 Inliner]: procedures = 166, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-08-30 04:01:15,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:01:15,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:01:15,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:01:15,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:01:15,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,990 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:15,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:16,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:01:16,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:01:16,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:01:16,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:01:16,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (1/1) ... [2023-08-30 04:01:16,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:01:16,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:01:16,044 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 04:01:16,065 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 04:01:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:01:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:01:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:01:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:01:16,084 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:01:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:01:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 04:01:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 04:01:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 04:01:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:01:16,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:01:16,086 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 04:01:16,285 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:01:16,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:01:16,515 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:01:16,521 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:01:16,521 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:01:16,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:01:16 BoogieIcfgContainer [2023-08-30 04:01:16,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:01:16,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:01:16,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:01:16,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:01:16,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:01:15" (1/3) ... [2023-08-30 04:01:16,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117306ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:01:16, skipping insertion in model container [2023-08-30 04:01:16,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:01:15" (2/3) ... [2023-08-30 04:01:16,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117306ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:01:16, skipping insertion in model container [2023-08-30 04:01:16,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:01:16" (3/3) ... [2023-08-30 04:01:16,548 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-30 04:01:16,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:01:16,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:01:16,563 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:01:16,622 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:01:16,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 67 transitions, 139 flow [2023-08-30 04:01:16,687 INFO L130 PetriNetUnfolder]: 1/66 cut-off events. [2023-08-30 04:01:16,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:16,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-08-30 04:01:16,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 67 transitions, 139 flow [2023-08-30 04:01:16,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-08-30 04:01:16,700 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:01:16,715 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-30 04:01:16,722 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-30 04:01:16,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-08-30 04:01:16,754 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-08-30 04:01:16,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:16,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-08-30 04:01:16,756 INFO L119 LiptonReduction]: Number of co-enabled transitions 380 [2023-08-30 04:01:20,801 INFO L134 LiptonReduction]: Checked pairs total: 967 [2023-08-30 04:01:20,801 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-30 04:01:20,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:01:20,819 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;@2db21795, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:01:20,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:01:20,821 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 04:01:20,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:20,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:20,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:01:20,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:20,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:20,829 INFO L85 PathProgramCache]: Analyzing trace with hash 238, now seen corresponding path program 1 times [2023-08-30 04:01:20,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378919888] [2023-08-30 04:01:20,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:20,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:20,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:20,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:20,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-08-30 04:01:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:20,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 04:01:20,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:01:20,908 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 04:01:20,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:01:20,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:01:20,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378919888] [2023-08-30 04:01:20,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378919888] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:20,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:20,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:01:20,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56072531] [2023-08-30 04:01:20,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:20,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:01:20,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:01:20,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:01:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:01:20,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 125 [2023-08-30 04:01:20,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 33 flow. Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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 04:01:20,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:20,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 125 [2023-08-30 04:01:20,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:20,996 INFO L130 PetriNetUnfolder]: 15/46 cut-off events. [2023-08-30 04:01:20,997 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:20,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 46 events. 15/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 114 event pairs, 15 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 82. Up to 41 conditions per place. [2023-08-30 04:01:20,998 INFO L137 encePairwiseOnDemand]: 122/125 looper letters, 10 selfloop transitions, 0 changer transitions 0/12 dead transitions. [2023-08-30 04:01:20,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 12 transitions, 47 flow [2023-08-30 04:01:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:01:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:01:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 141 transitions. [2023-08-30 04:01:21,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.564 [2023-08-30 04:01:21,010 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 141 transitions. [2023-08-30 04:01:21,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 141 transitions. [2023-08-30 04:01:21,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:21,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 141 transitions. [2023-08-30 04:01:21,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:21,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 04:01:21,019 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 04:01:21,021 INFO L175 Difference]: Start difference. First operand has 18 places, 15 transitions, 33 flow. Second operand 2 states and 141 transitions. [2023-08-30 04:01:21,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 12 transitions, 47 flow [2023-08-30 04:01:21,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 12 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:01:21,024 INFO L231 Difference]: Finished difference. Result has 16 places, 12 transitions, 26 flow [2023-08-30 04:01:21,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=26, PETRI_PLACES=16, PETRI_TRANSITIONS=12} [2023-08-30 04:01:21,029 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2023-08-30 04:01:21,029 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 26 flow [2023-08-30 04:01:21,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 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 04:01:21,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:21,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:01:21,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:21,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:21,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:21,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:21,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1603269871, now seen corresponding path program 1 times [2023-08-30 04:01:21,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:21,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131085174] [2023-08-30 04:01:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:21,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:21,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:21,243 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:21,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-08-30 04:01:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:21,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 04:01:21,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:01:21,341 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 04:01:21,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:01:21,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:01:21,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131085174] [2023-08-30 04:01:21,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131085174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:21,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:21,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:01:21,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457864484] [2023-08-30 04:01:21,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:21,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:01:21,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:01:21,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:01:21,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:01:21,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 125 [2023-08-30 04:01:21,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 04:01:21,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:21,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 125 [2023-08-30 04:01:21,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:21,413 INFO L130 PetriNetUnfolder]: 16/51 cut-off events. [2023-08-30 04:01:21,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:01:21,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 51 events. 16/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 9 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 99. Up to 27 conditions per place. [2023-08-30 04:01:21,414 INFO L137 encePairwiseOnDemand]: 121/125 looper letters, 13 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-08-30 04:01:21,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 17 transitions, 68 flow [2023-08-30 04:01:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:01:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:01:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-08-30 04:01:21,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5413333333333333 [2023-08-30 04:01:21,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-08-30 04:01:21,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-08-30 04:01:21,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:21,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-08-30 04:01:21,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:21,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 04:01:21,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 04:01:21,433 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 26 flow. Second operand 3 states and 203 transitions. [2023-08-30 04:01:21,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 17 transitions, 68 flow [2023-08-30 04:01:21,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:01:21,435 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 44 flow [2023-08-30 04:01:21,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-08-30 04:01:21,435 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-08-30 04:01:21,436 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 44 flow [2023-08-30 04:01:21,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 04:01:21,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:21,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 04:01:21,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:21,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:21,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:21,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:21,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1603269868, now seen corresponding path program 1 times [2023-08-30 04:01:21,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:21,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336807542] [2023-08-30 04:01:21,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:21,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:21,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:21,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:21,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-08-30 04:01:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:21,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 04:01:21,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:01:21,844 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 04:01:21,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:01:21,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:01:21,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336807542] [2023-08-30 04:01:21,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336807542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:21,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:21,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:01:21,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877671103] [2023-08-30 04:01:21,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:21,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:01:21,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:01:21,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:01:21,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:01:21,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 125 [2023-08-30 04:01:21,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 04:01:21,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:21,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 125 [2023-08-30 04:01:21,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:21,949 INFO L130 PetriNetUnfolder]: 10/35 cut-off events. [2023-08-30 04:01:21,949 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2023-08-30 04:01:21,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 35 events. 10/35 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 10 based on Foata normal form. 5/39 useless extension candidates. Maximal degree in co-relation 76. Up to 29 conditions per place. [2023-08-30 04:01:21,950 INFO L137 encePairwiseOnDemand]: 123/125 looper letters, 8 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-30 04:01:21,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 52 flow [2023-08-30 04:01:21,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:01:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:01:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-08-30 04:01:21,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49866666666666665 [2023-08-30 04:01:21,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-08-30 04:01:21,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-08-30 04:01:21,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:21,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-08-30 04:01:21,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 04:01:21,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 04:01:21,958 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 04:01:21,958 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 44 flow. Second operand 3 states and 187 transitions. [2023-08-30 04:01:21,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 52 flow [2023-08-30 04:01:21,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 04:01:21,959 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 30 flow [2023-08-30 04:01:21,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2023-08-30 04:01:21,960 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2023-08-30 04:01:21,960 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 30 flow [2023-08-30 04:01:21,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 04:01:21,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:21,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:21,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:22,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:22,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:22,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1091075141, now seen corresponding path program 1 times [2023-08-30 04:01:22,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:22,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022711896] [2023-08-30 04:01:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:22,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:22,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:22,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:22,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-08-30 04:01:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:22,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 04:01:22,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:01:22,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-08-30 04:01:22,271 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 04:01:22,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:01:22,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:01:22,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022711896] [2023-08-30 04:01:22,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022711896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:22,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:22,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:01:22,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837523073] [2023-08-30 04:01:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:01:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:01:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:01:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:01:22,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 125 [2023-08-30 04:01:22,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 04:01:22,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:22,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 125 [2023-08-30 04:01:22,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:22,357 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2023-08-30 04:01:22,357 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 04:01:22,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 30 events. 6/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 2 based on Foata normal form. 4/34 useless extension candidates. Maximal degree in co-relation 66. Up to 18 conditions per place. [2023-08-30 04:01:22,358 INFO L137 encePairwiseOnDemand]: 120/125 looper letters, 9 selfloop transitions, 5 changer transitions 0/15 dead transitions. [2023-08-30 04:01:22,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 68 flow [2023-08-30 04:01:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:01:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:01:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2023-08-30 04:01:22,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-30 04:01:22,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions. [2023-08-30 04:01:22,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions. [2023-08-30 04:01:22,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:22,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions. [2023-08-30 04:01:22,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:22,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 04:01:22,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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 04:01:22,368 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 30 flow. Second operand 3 states and 190 transitions. [2023-08-30 04:01:22,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 68 flow [2023-08-30 04:01:22,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:01:22,369 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 52 flow [2023-08-30 04:01:22,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2023-08-30 04:01:22,370 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-08-30 04:01:22,370 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 52 flow [2023-08-30 04:01:22,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 04:01:22,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:22,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:22,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:22,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:22,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:22,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:22,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1317736601, now seen corresponding path program 2 times [2023-08-30 04:01:22,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:22,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751888705] [2023-08-30 04:01:22,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 04:01:22,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:22,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:22,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:22,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-08-30 04:01:22,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 04:01:22,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 04:01:22,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-30 04:01:22,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:01:22,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-08-30 04:01:22,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 04:01:22,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 04:01:22,741 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 04:01:22,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:01:22,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:01:22,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751888705] [2023-08-30 04:01:22,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751888705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:22,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:22,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 04:01:22,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444568839] [2023-08-30 04:01:22,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:22,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 04:01:22,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:01:22,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 04:01:22,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 04:01:22,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 125 [2023-08-30 04:01:22,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:22,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:22,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 125 [2023-08-30 04:01:22,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:22,922 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2023-08-30 04:01:22,923 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 04:01:22,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 25 events. 4/25 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 76. Up to 15 conditions per place. [2023-08-30 04:01:22,923 INFO L137 encePairwiseOnDemand]: 121/125 looper letters, 10 selfloop transitions, 4 changer transitions 1/16 dead transitions. [2023-08-30 04:01:22,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 96 flow [2023-08-30 04:01:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:01:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:01:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2023-08-30 04:01:22,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.482 [2023-08-30 04:01:22,926 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 241 transitions. [2023-08-30 04:01:22,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 241 transitions. [2023-08-30 04:01:22,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:22,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 241 transitions. [2023-08-30 04:01:22,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:22,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 04:01:22,928 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 04:01:22,928 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 52 flow. Second operand 4 states and 241 transitions. [2023-08-30 04:01:22,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 96 flow [2023-08-30 04:01:22,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:01:22,932 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 55 flow [2023-08-30 04:01:22,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=55, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-08-30 04:01:22,934 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-08-30 04:01:22,935 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 55 flow [2023-08-30 04:01:22,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:01:22,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:22,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:22,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:23,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:23,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:23,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:23,137 INFO L85 PathProgramCache]: Analyzing trace with hash -585701404, now seen corresponding path program 1 times [2023-08-30 04:01:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:23,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285432881] [2023-08-30 04:01:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:23,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:23,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:23,138 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:23,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-08-30 04:01:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:01:23,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-30 04:01:23,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 04:01:23,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-08-30 04:01:23,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 04:01:23,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 04:01:23,308 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 04:01:23,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 04:01:23,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 04:01:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285432881] [2023-08-30 04:01:23,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285432881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:01:23,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:01:23,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 04:01:23,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291752701] [2023-08-30 04:01:23,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:01:23,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 04:01:23,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 04:01:23,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 04:01:23,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 04:01:23,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 125 [2023-08-30 04:01:23,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 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 04:01:23,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:01:23,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 125 [2023-08-30 04:01:23,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:01:23,427 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 04:01:23,427 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 04:01:23,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 15 events. 0/15 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-08-30 04:01:23,428 INFO L137 encePairwiseOnDemand]: 120/125 looper letters, 5 selfloop transitions, 5 changer transitions 0/11 dead transitions. [2023-08-30 04:01:23,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 67 flow [2023-08-30 04:01:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:01:23,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:01:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2023-08-30 04:01:23,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.478 [2023-08-30 04:01:23,429 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 239 transitions. [2023-08-30 04:01:23,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 239 transitions. [2023-08-30 04:01:23,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:01:23,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 239 transitions. [2023-08-30 04:01:23,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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 04:01:23,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 04:01:23,431 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 04:01:23,431 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 55 flow. Second operand 4 states and 239 transitions. [2023-08-30 04:01:23,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 67 flow [2023-08-30 04:01:23,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 11 transitions, 57 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-30 04:01:23,432 INFO L231 Difference]: Finished difference. Result has 22 places, 11 transitions, 47 flow [2023-08-30 04:01:23,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=47, PETRI_PLACES=22, PETRI_TRANSITIONS=11} [2023-08-30 04:01:23,433 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-08-30 04:01:23,433 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 11 transitions, 47 flow [2023-08-30 04:01:23,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.8) internal successors, (294), 5 states have internal predecessors, (294), 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 04:01:23,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:01:23,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:01:23,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:23,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:23,634 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:01:23,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:01:23,635 INFO L85 PathProgramCache]: Analyzing trace with hash -985572062, now seen corresponding path program 1 times [2023-08-30 04:01:23,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 04:01:23,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012116865] [2023-08-30 04:01:23,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:01:23,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:23,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 04:01:23,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 04:01:23,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-08-30 04:01:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:01:23,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 04:01:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 04:01:23,762 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 04:01:23,763 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 04:01:23,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-08-30 04:01:23,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:01:23,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-08-30 04:01:23,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:01:23,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:01:23,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-08-30 04:01:23,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 04:01:23,967 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-30 04:01:23,971 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:01:23,971 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:01:23,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:01:23 BasicIcfg [2023-08-30 04:01:23,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:01:23,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:01:23,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:01:23,990 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:01:23,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:01:16" (3/4) ... [2023-08-30 04:01:23,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 04:01:23,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:01:23,993 INFO L158 Benchmark]: Toolchain (without parser) took 8574.36ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 48.1MB in the beginning and 31.7MB in the end (delta: 16.4MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2023-08-30 04:01:23,993 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:23,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.39ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 46.0MB in the end (delta: 1.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-08-30 04:01:23,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.65ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 44.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:23,994 INFO L158 Benchmark]: Boogie Preprocessor took 48.50ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 42.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:23,995 INFO L158 Benchmark]: RCFGBuilder took 516.08ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 28.2MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 04:01:23,995 INFO L158 Benchmark]: TraceAbstraction took 7464.73ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 27.5MB in the beginning and 31.7MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 04:01:23,995 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 86.0MB. Free memory is still 31.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:01:24,006 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 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.39ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 46.0MB in the end (delta: 1.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.65ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 44.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.50ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 42.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 516.08ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 28.2MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7464.73ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 27.5MB in the beginning and 31.7MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 86.0MB. Free memory is still 31.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 65 PlacesBefore, 18 PlacesAfterwards, 62 TransitionsBefore, 15 TransitionsAfterwards, 380 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 967 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 441, independent: 337, independent conditional: 0, independent unconditional: 337, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 231, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 441, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 231, unknown conditional: 0, unknown unconditional: 231] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L687] 1 g = 17 VAL [A={3:0}, D={4:0}, arg={0:0}, arg={0:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, \result={0:0}, arg={0:0}, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 79 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 37 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=5, InterpolantAutomatonStates: 19, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 5 QuantifiedInterpolants, 242 SizeOfPredicates, 2 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 04:01:24,030 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: UNKNOWN: Overapproximated counterexample