./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6c24879c 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 ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -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 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 19:26:13,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 19:26:13,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 19:26:13,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 19:26:13,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 19:26:13,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 19:26:13,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 19:26:13,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 19:26:13,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 19:26:13,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 19:26:13,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 19:26:13,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 19:26:13,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 19:26:13,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 19:26:13,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 19:26:13,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 19:26:13,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 19:26:13,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 19:26:13,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 19:26:13,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 19:26:13,344 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 19:26:13,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 19:26:13,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 19:26:13,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 19:26:13,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 19:26:13,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 19:26:13,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 19:26:13,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 19:26:13,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 19:26:13,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 19:26:13,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 19:26:13,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 19:26:13,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 19:26:13,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 19:26:13,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 19:26:13,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 19:26:13,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 19:26:13,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 19:26:13,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 19:26:13,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 19:26:13,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 19:26:13,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 19:26:13,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-12 19:26:13,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 19:26:13,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 19:26:13,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 19:26:13,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 19:26:13,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 19:26:13,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 19:26:13,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 19:26:13,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 19:26:13,385 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 19:26:13,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 19:26:13,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 19:26:13,386 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-12 19:26:13,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 19:26:13,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 19:26:13,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 19:26:13,387 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-12 19:26:13,387 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-12 19:26:13,387 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-12 19:26:13,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 19:26:13,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 19:26:13,389 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 19:26:13,389 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 19:26:13,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 19:26:13,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 19:26:13,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 19:26:13,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 19:26:13,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 19:26:13,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 19:26:13,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 19:26:13,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 19:26:13,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2022-07-12 19:26:13,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 19:26:13,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 19:26:13,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 19:26:13,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 19:26:13,589 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 19:26:13,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-07-12 19:26:13,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2602da17b/dfc4b373945247f19c96451283e4ba1f/FLAG8c6ab779e [2022-07-12 19:26:14,034 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 19:26:14,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-07-12 19:26:14,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2602da17b/dfc4b373945247f19c96451283e4ba1f/FLAG8c6ab779e [2022-07-12 19:26:14,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2602da17b/dfc4b373945247f19c96451283e4ba1f [2022-07-12 19:26:14,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 19:26:14,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 19:26:14,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 19:26:14,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 19:26:14,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 19:26:14,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9e5799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14, skipping insertion in model container [2022-07-12 19:26:14,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 19:26:14,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 19:26:14,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-07-12 19:26:14,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 19:26:14,332 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 19:26:14,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-07-12 19:26:14,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 19:26:14,412 INFO L208 MainTranslator]: Completed translation [2022-07-12 19:26:14,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14 WrapperNode [2022-07-12 19:26:14,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 19:26:14,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 19:26:14,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 19:26:14,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 19:26:14,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,486 INFO L137 Inliner]: procedures = 41, calls = 77, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 1331 [2022-07-12 19:26:14,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 19:26:14,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 19:26:14,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 19:26:14,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 19:26:14,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 19:26:14,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 19:26:14,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 19:26:14,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 19:26:14,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (1/1) ... [2022-07-12 19:26:14,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 19:26:14,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 19:26:14,576 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) [2022-07-12 19:26:14,590 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 [2022-07-12 19:26:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 19:26:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-07-12 19:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-07-12 19:26:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-07-12 19:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-07-12 19:26:14,605 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-12 19:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-12 19:26:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-12 19:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-12 19:26:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-12 19:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-12 19:26:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 19:26:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-12 19:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-12 19:26:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-07-12 19:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-07-12 19:26:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 19:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 19:26:14,814 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 19:26:14,815 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 19:26:14,820 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,873 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-12 19:26:14,873 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-12 19:26:14,874 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,885 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-12 19:26:14,885 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-12 19:26:14,894 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,899 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,912 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,913 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,916 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,916 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:14,920 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:15,335 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false; [2022-07-12 19:26:15,335 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2022-07-12 19:26:15,335 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2022-07-12 19:26:15,335 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume !false; [2022-07-12 19:26:15,335 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume false; [2022-07-12 19:26:15,335 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-07-12 19:26:15,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-07-12 19:26:15,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-07-12 19:26:15,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-07-12 19:26:15,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-07-12 19:26:15,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2022-07-12 19:26:15,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !false; [2022-07-12 19:26:15,337 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##235: assume false; [2022-07-12 19:26:15,337 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-07-12 19:26:15,339 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:15,366 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-12 19:26:15,366 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-12 19:26:15,367 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:15,368 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:15,368 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:15,390 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-07-12 19:26:15,391 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-07-12 19:26:15,391 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-07-12 19:26:15,391 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-07-12 19:26:15,392 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-07-12 19:26:15,392 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-07-12 19:26:15,402 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 19:26:15,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 19:26:15,420 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 19:26:15,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:15 BoogieIcfgContainer [2022-07-12 19:26:15,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 19:26:15,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 19:26:15,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 19:26:15,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 19:26:15,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:26:14" (1/3) ... [2022-07-12 19:26:15,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1937de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:15, skipping insertion in model container [2022-07-12 19:26:15,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:14" (2/3) ... [2022-07-12 19:26:15,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1937de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:15, skipping insertion in model container [2022-07-12 19:26:15,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:15" (3/3) ... [2022-07-12 19:26:15,428 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2022-07-12 19:26:15,437 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 19:26:15,437 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 19:26:15,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 19:26:15,470 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2bb70f94, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@611709ef [2022-07-12 19:26:15,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 19:26:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) [2022-07-12 19:26:15,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 19:26:15,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:15,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:15,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:15,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash -207662659, now seen corresponding path program 1 times [2022-07-12 19:26:15,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:15,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893660545] [2022-07-12 19:26:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:15,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:15,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:15,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893660545] [2022-07-12 19:26:15,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893660545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:15,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:15,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:15,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542219559] [2022-07-12 19:26:15,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:15,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:15,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:15,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:15,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:15,639 INFO L87 Difference]: Start difference. First operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:15,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:15,716 INFO L93 Difference]: Finished difference Result 318 states and 469 transitions. [2022-07-12 19:26:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:15,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-12 19:26:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:15,733 INFO L225 Difference]: With dead ends: 318 [2022-07-12 19:26:15,733 INFO L226 Difference]: Without dead ends: 316 [2022-07-12 19:26:15,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:15,739 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 262 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:15,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 631 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:15,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-12 19:26:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-07-12 19:26:15,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 257 states have (on average 1.5058365758754864) internal successors, (387), 282 states have internal predecessors, (387), 51 states have call successors, (51), 7 states have call predecessors, (51), 6 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-07-12 19:26:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 467 transitions. [2022-07-12 19:26:15,803 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 467 transitions. Word has length 8 [2022-07-12 19:26:15,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:15,805 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 467 transitions. [2022-07-12 19:26:15,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 467 transitions. [2022-07-12 19:26:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-12 19:26:15,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:15,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:15,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 19:26:15,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:15,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash -922150621, now seen corresponding path program 1 times [2022-07-12 19:26:15,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:15,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144547319] [2022-07-12 19:26:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:15,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:15,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:15,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144547319] [2022-07-12 19:26:15,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144547319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:15,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:15,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:15,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281600333] [2022-07-12 19:26:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:15,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:15,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:15,891 INFO L87 Difference]: Start difference. First operand 316 states and 467 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:16,006 INFO L93 Difference]: Finished difference Result 440 states and 643 transitions. [2022-07-12 19:26:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:16,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-12 19:26:16,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:16,009 INFO L225 Difference]: With dead ends: 440 [2022-07-12 19:26:16,009 INFO L226 Difference]: Without dead ends: 440 [2022-07-12 19:26:16,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,020 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 371 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:16,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 782 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-07-12 19:26:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 418. [2022-07-12 19:26:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 358 states have (on average 1.4245810055865922) internal successors, (510), 363 states have internal predecessors, (510), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2022-07-12 19:26:16,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 611 transitions. [2022-07-12 19:26:16,043 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 611 transitions. Word has length 16 [2022-07-12 19:26:16,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:16,044 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 611 transitions. [2022-07-12 19:26:16,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 611 transitions. [2022-07-12 19:26:16,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-12 19:26:16,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:16,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:16,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 19:26:16,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:16,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:16,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851736, now seen corresponding path program 1 times [2022-07-12 19:26:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:16,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962170218] [2022-07-12 19:26:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:16,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:16,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:16,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962170218] [2022-07-12 19:26:16,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962170218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:16,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:16,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 19:26:16,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181266337] [2022-07-12 19:26:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:16,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:16,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,100 INFO L87 Difference]: Start difference. First operand 418 states and 611 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:16,142 INFO L93 Difference]: Finished difference Result 417 states and 610 transitions. [2022-07-12 19:26:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:16,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-12 19:26:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:16,146 INFO L225 Difference]: With dead ends: 417 [2022-07-12 19:26:16,146 INFO L226 Difference]: Without dead ends: 413 [2022-07-12 19:26:16,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,151 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 272 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:16,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 544 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:16,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-12 19:26:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-07-12 19:26:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 354 states have (on average 1.4039548022598871) internal successors, (497), 358 states have internal predecessors, (497), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2022-07-12 19:26:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 598 transitions. [2022-07-12 19:26:16,173 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 598 transitions. Word has length 14 [2022-07-12 19:26:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:16,173 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 598 transitions. [2022-07-12 19:26:16,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 598 transitions. [2022-07-12 19:26:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 19:26:16,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:16,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:16,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 19:26:16,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:16,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:16,176 INFO L85 PathProgramCache]: Analyzing trace with hash -866854925, now seen corresponding path program 1 times [2022-07-12 19:26:16,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:16,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586820123] [2022-07-12 19:26:16,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:16,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:16,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:16,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586820123] [2022-07-12 19:26:16,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586820123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:16,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:16,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:16,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347135668] [2022-07-12 19:26:16,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:16,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:16,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:16,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,234 INFO L87 Difference]: Start difference. First operand 413 states and 598 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:16,256 INFO L93 Difference]: Finished difference Result 499 states and 706 transitions. [2022-07-12 19:26:16,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:16,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-12 19:26:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:16,259 INFO L225 Difference]: With dead ends: 499 [2022-07-12 19:26:16,259 INFO L226 Difference]: Without dead ends: 499 [2022-07-12 19:26:16,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,264 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 407 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:16,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 545 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:16,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-07-12 19:26:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 467. [2022-07-12 19:26:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.399002493765586) internal successors, (561), 412 states have internal predecessors, (561), 51 states have call successors, (51), 14 states have call predecessors, (51), 14 states have return successors, (59), 43 states have call predecessors, (59), 41 states have call successors, (59) [2022-07-12 19:26:16,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 671 transitions. [2022-07-12 19:26:16,282 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 671 transitions. Word has length 19 [2022-07-12 19:26:16,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:16,283 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 671 transitions. [2022-07-12 19:26:16,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 671 transitions. [2022-07-12 19:26:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-12 19:26:16,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:16,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:16,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 19:26:16,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:16,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:16,285 INFO L85 PathProgramCache]: Analyzing trace with hash 122564240, now seen corresponding path program 1 times [2022-07-12 19:26:16,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493328028] [2022-07-12 19:26:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:16,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:16,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:16,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493328028] [2022-07-12 19:26:16,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493328028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:16,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:16,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:16,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932495152] [2022-07-12 19:26:16,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:16,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:16,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:16,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:16,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,331 INFO L87 Difference]: Start difference. First operand 467 states and 671 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:16,351 INFO L93 Difference]: Finished difference Result 646 states and 916 transitions. [2022-07-12 19:26:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-12 19:26:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:16,357 INFO L225 Difference]: With dead ends: 646 [2022-07-12 19:26:16,357 INFO L226 Difference]: Without dead ends: 646 [2022-07-12 19:26:16,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,358 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 397 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:16,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 658 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-07-12 19:26:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 621. [2022-07-12 19:26:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 538 states have (on average 1.3866171003717471) internal successors, (746), 546 states have internal predecessors, (746), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-12 19:26:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 887 transitions. [2022-07-12 19:26:16,377 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 887 transitions. Word has length 22 [2022-07-12 19:26:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:16,378 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 887 transitions. [2022-07-12 19:26:16,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 887 transitions. [2022-07-12 19:26:16,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 19:26:16,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:16,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:16,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 19:26:16,383 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:16,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:16,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1248863601, now seen corresponding path program 1 times [2022-07-12 19:26:16,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:16,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000103879] [2022-07-12 19:26:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:16,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 19:26:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 19:26:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:16,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:16,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000103879] [2022-07-12 19:26:16,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000103879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:16,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:16,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:16,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486580786] [2022-07-12 19:26:16,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:16,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:16,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:16,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:16,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:16,440 INFO L87 Difference]: Start difference. First operand 621 states and 887 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:16,704 INFO L93 Difference]: Finished difference Result 685 states and 972 transitions. [2022-07-12 19:26:16,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-07-12 19:26:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:16,707 INFO L225 Difference]: With dead ends: 685 [2022-07-12 19:26:16,707 INFO L226 Difference]: Without dead ends: 685 [2022-07-12 19:26:16,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:16,708 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 118 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:16,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1263 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:16,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-07-12 19:26:16,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 662. [2022-07-12 19:26:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 577 states have (on average 1.3795493934142113) internal successors, (796), 585 states have internal predecessors, (796), 61 states have call successors, (61), 22 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-12 19:26:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 942 transitions. [2022-07-12 19:26:16,719 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 942 transitions. Word has length 29 [2022-07-12 19:26:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:16,720 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 942 transitions. [2022-07-12 19:26:16,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 942 transitions. [2022-07-12 19:26:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 19:26:16,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:16,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:16,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 19:26:16,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1346397447, now seen corresponding path program 1 times [2022-07-12 19:26:16,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:16,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778360013] [2022-07-12 19:26:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:16,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:16,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:16,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778360013] [2022-07-12 19:26:16,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778360013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:16,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:16,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:16,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796177349] [2022-07-12 19:26:16,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:16,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:16,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:16,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:16,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,749 INFO L87 Difference]: Start difference. First operand 662 states and 942 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:16,794 INFO L93 Difference]: Finished difference Result 674 states and 958 transitions. [2022-07-12 19:26:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:16,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-12 19:26:16,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:16,796 INFO L225 Difference]: With dead ends: 674 [2022-07-12 19:26:16,796 INFO L226 Difference]: Without dead ends: 674 [2022-07-12 19:26:16,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:16,797 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 20 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:16,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 784 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:16,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-07-12 19:26:16,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 673. [2022-07-12 19:26:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 588 states have (on average 1.3775510204081634) internal successors, (810), 595 states have internal predecessors, (810), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-12 19:26:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 956 transitions. [2022-07-12 19:26:16,808 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 956 transitions. Word has length 28 [2022-07-12 19:26:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:16,809 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 956 transitions. [2022-07-12 19:26:16,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 956 transitions. [2022-07-12 19:26:16,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:16,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:16,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:16,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 19:26:16,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:16,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:16,811 INFO L85 PathProgramCache]: Analyzing trace with hash 392976058, now seen corresponding path program 1 times [2022-07-12 19:26:16,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:16,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421814149] [2022-07-12 19:26:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 19:26:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 19:26:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:16,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:16,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421814149] [2022-07-12 19:26:16,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421814149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:16,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:16,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:16,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283973148] [2022-07-12 19:26:16,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:16,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:16,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:16,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:16,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:16,888 INFO L87 Difference]: Start difference. First operand 673 states and 956 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:17,306 INFO L93 Difference]: Finished difference Result 696 states and 984 transitions. [2022-07-12 19:26:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:17,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-07-12 19:26:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:17,309 INFO L225 Difference]: With dead ends: 696 [2022-07-12 19:26:17,309 INFO L226 Difference]: Without dead ends: 696 [2022-07-12 19:26:17,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:17,310 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 584 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:17,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1459 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-12 19:26:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 673. [2022-07-12 19:26:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 588 states have (on average 1.3741496598639455) internal successors, (808), 595 states have internal predecessors, (808), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-12 19:26:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 954 transitions. [2022-07-12 19:26:17,321 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 954 transitions. Word has length 30 [2022-07-12 19:26:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:17,322 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 954 transitions. [2022-07-12 19:26:17,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 954 transitions. [2022-07-12 19:26:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 19:26:17,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:17,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:17,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 19:26:17,323 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:17,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1642550596, now seen corresponding path program 1 times [2022-07-12 19:26:17,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:17,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389867456] [2022-07-12 19:26:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:17,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 19:26:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 19:26:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:17,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:17,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389867456] [2022-07-12 19:26:17,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389867456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:17,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:17,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:17,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461851500] [2022-07-12 19:26:17,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:17,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:17,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:17,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:17,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:17,405 INFO L87 Difference]: Start difference. First operand 673 states and 954 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:17,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:17,722 INFO L93 Difference]: Finished difference Result 696 states and 982 transitions. [2022-07-12 19:26:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:17,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-07-12 19:26:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:17,725 INFO L225 Difference]: With dead ends: 696 [2022-07-12 19:26:17,725 INFO L226 Difference]: Without dead ends: 696 [2022-07-12 19:26:17,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:17,726 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 649 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:17,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1209 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:17,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-12 19:26:17,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 673. [2022-07-12 19:26:17,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 588 states have (on average 1.370748299319728) internal successors, (806), 595 states have internal predecessors, (806), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-12 19:26:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 952 transitions. [2022-07-12 19:26:17,736 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 952 transitions. Word has length 32 [2022-07-12 19:26:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:17,736 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 952 transitions. [2022-07-12 19:26:17,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 952 transitions. [2022-07-12 19:26:17,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 19:26:17,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:17,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:17,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 19:26:17,737 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:17,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2035129213, now seen corresponding path program 1 times [2022-07-12 19:26:17,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:17,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636123376] [2022-07-12 19:26:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:17,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 19:26:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 19:26:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:17,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:17,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636123376] [2022-07-12 19:26:17,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636123376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:17,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:17,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:17,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367810400] [2022-07-12 19:26:17,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:17,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:17,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:17,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:17,778 INFO L87 Difference]: Start difference. First operand 673 states and 952 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:18,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,021 INFO L93 Difference]: Finished difference Result 702 states and 988 transitions. [2022-07-12 19:26:18,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 19:26:18,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-12 19:26:18,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,023 INFO L225 Difference]: With dead ends: 702 [2022-07-12 19:26:18,023 INFO L226 Difference]: Without dead ends: 690 [2022-07-12 19:26:18,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:18,024 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 395 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1459 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:18,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-07-12 19:26:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 671. [2022-07-12 19:26:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 587 states have (on average 1.3696763202725724) internal successors, (804), 594 states have internal predecessors, (804), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (84), 54 states have call predecessors, (84), 52 states have call successors, (84) [2022-07-12 19:26:18,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 948 transitions. [2022-07-12 19:26:18,035 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 948 transitions. Word has length 32 [2022-07-12 19:26:18,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,036 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 948 transitions. [2022-07-12 19:26:18,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 948 transitions. [2022-07-12 19:26:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:18,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 19:26:18,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,038 INFO L85 PathProgramCache]: Analyzing trace with hash -594269944, now seen corresponding path program 1 times [2022-07-12 19:26:18,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717466168] [2022-07-12 19:26:18,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:18,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:18,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717466168] [2022-07-12 19:26:18,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717466168] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:18,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:18,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:18,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450188673] [2022-07-12 19:26:18,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:18,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:18,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:18,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:18,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:18,063 INFO L87 Difference]: Start difference. First operand 671 states and 948 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,077 INFO L93 Difference]: Finished difference Result 675 states and 944 transitions. [2022-07-12 19:26:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:18,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-12 19:26:18,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,080 INFO L225 Difference]: With dead ends: 675 [2022-07-12 19:26:18,080 INFO L226 Difference]: Without dead ends: 660 [2022-07-12 19:26:18,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:18,080 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 87 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 900 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:18,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-07-12 19:26:18,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 655. [2022-07-12 19:26:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 572 states have (on average 1.3618881118881119) internal successors, (779), 579 states have internal predecessors, (779), 60 states have call successors, (60), 23 states have call predecessors, (60), 22 states have return successors, (83), 53 states have call predecessors, (83), 52 states have call successors, (83) [2022-07-12 19:26:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 922 transitions. [2022-07-12 19:26:18,090 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 922 transitions. Word has length 30 [2022-07-12 19:26:18,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,090 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 922 transitions. [2022-07-12 19:26:18,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 922 transitions. [2022-07-12 19:26:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:18,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 19:26:18,092 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash -444205741, now seen corresponding path program 1 times [2022-07-12 19:26:18,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417639898] [2022-07-12 19:26:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:18,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:18,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417639898] [2022-07-12 19:26:18,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417639898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:18,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:18,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:18,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537694875] [2022-07-12 19:26:18,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:18,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:18,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:18,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:18,119 INFO L87 Difference]: Start difference. First operand 655 states and 922 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,148 INFO L93 Difference]: Finished difference Result 671 states and 939 transitions. [2022-07-12 19:26:18,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:18,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-12 19:26:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,150 INFO L225 Difference]: With dead ends: 671 [2022-07-12 19:26:18,150 INFO L226 Difference]: Without dead ends: 671 [2022-07-12 19:26:18,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:18,151 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 27 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1249 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-07-12 19:26:18,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 657. [2022-07-12 19:26:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 574 states have (on average 1.3606271777003485) internal successors, (781), 581 states have internal predecessors, (781), 60 states have call successors, (60), 23 states have call predecessors, (60), 22 states have return successors, (83), 53 states have call predecessors, (83), 52 states have call successors, (83) [2022-07-12 19:26:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 924 transitions. [2022-07-12 19:26:18,161 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 924 transitions. Word has length 30 [2022-07-12 19:26:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,161 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 924 transitions. [2022-07-12 19:26:18,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 924 transitions. [2022-07-12 19:26:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:26:18,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 19:26:18,162 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,162 INFO L85 PathProgramCache]: Analyzing trace with hash -565183302, now seen corresponding path program 1 times [2022-07-12 19:26:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974095478] [2022-07-12 19:26:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 19:26:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 19:26:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:18,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:18,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974095478] [2022-07-12 19:26:18,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974095478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:18,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:18,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620140532] [2022-07-12 19:26:18,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:18,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:18,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:18,204 INFO L87 Difference]: Start difference. First operand 657 states and 924 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,455 INFO L93 Difference]: Finished difference Result 686 states and 960 transitions. [2022-07-12 19:26:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 19:26:18,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-12 19:26:18,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,457 INFO L225 Difference]: With dead ends: 686 [2022-07-12 19:26:18,457 INFO L226 Difference]: Without dead ends: 669 [2022-07-12 19:26:18,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:18,458 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 318 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1680 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:18,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-07-12 19:26:18,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 650. [2022-07-12 19:26:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.3614035087719298) internal successors, (776), 577 states have internal predecessors, (776), 58 states have call successors, (58), 22 states have call predecessors, (58), 21 states have return successors, (81), 51 states have call predecessors, (81), 50 states have call successors, (81) [2022-07-12 19:26:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 915 transitions. [2022-07-12 19:26:18,477 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 915 transitions. Word has length 33 [2022-07-12 19:26:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,477 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 915 transitions. [2022-07-12 19:26:18,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 915 transitions. [2022-07-12 19:26:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:18,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 19:26:18,478 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1157172831, now seen corresponding path program 1 times [2022-07-12 19:26:18,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529957864] [2022-07-12 19:26:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:18,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:18,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529957864] [2022-07-12 19:26:18,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529957864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:18,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:18,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:18,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727340710] [2022-07-12 19:26:18,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:18,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:18,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:18,499 INFO L87 Difference]: Start difference. First operand 650 states and 915 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,525 INFO L93 Difference]: Finished difference Result 666 states and 932 transitions. [2022-07-12 19:26:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:18,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-12 19:26:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,527 INFO L225 Difference]: With dead ends: 666 [2022-07-12 19:26:18,527 INFO L226 Difference]: Without dead ends: 666 [2022-07-12 19:26:18,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:18,527 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 28 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1226 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-12 19:26:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 650. [2022-07-12 19:26:18,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.3614035087719298) internal successors, (776), 577 states have internal predecessors, (776), 58 states have call successors, (58), 22 states have call predecessors, (58), 21 states have return successors, (81), 51 states have call predecessors, (81), 50 states have call successors, (81) [2022-07-12 19:26:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 915 transitions. [2022-07-12 19:26:18,536 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 915 transitions. Word has length 31 [2022-07-12 19:26:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,536 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 915 transitions. [2022-07-12 19:26:18,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 915 transitions. [2022-07-12 19:26:18,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 19:26:18,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 19:26:18,537 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,538 INFO L85 PathProgramCache]: Analyzing trace with hash -984672399, now seen corresponding path program 1 times [2022-07-12 19:26:18,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251439823] [2022-07-12 19:26:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:18,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:18,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251439823] [2022-07-12 19:26:18,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251439823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:18,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:18,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108455487] [2022-07-12 19:26:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:18,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:18,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:18,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:18,562 INFO L87 Difference]: Start difference. First operand 650 states and 915 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,774 INFO L93 Difference]: Finished difference Result 908 states and 1277 transitions. [2022-07-12 19:26:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-12 19:26:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,777 INFO L225 Difference]: With dead ends: 908 [2022-07-12 19:26:18,777 INFO L226 Difference]: Without dead ends: 908 [2022-07-12 19:26:18,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:18,777 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 168 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1109 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:18,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-07-12 19:26:18,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 729. [2022-07-12 19:26:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 645 states have (on average 1.3705426356589148) internal successors, (884), 653 states have internal predecessors, (884), 60 states have call successors, (60), 24 states have call predecessors, (60), 23 states have return successors, (83), 52 states have call predecessors, (83), 52 states have call successors, (83) [2022-07-12 19:26:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1027 transitions. [2022-07-12 19:26:18,788 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1027 transitions. Word has length 34 [2022-07-12 19:26:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,789 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 1027 transitions. [2022-07-12 19:26:18,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1027 transitions. [2022-07-12 19:26:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:26:18,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 19:26:18,790 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash -703098920, now seen corresponding path program 1 times [2022-07-12 19:26:18,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873029347] [2022-07-12 19:26:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 19:26:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:18,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:18,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:18,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873029347] [2022-07-12 19:26:18,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873029347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:18,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:18,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:18,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313539956] [2022-07-12 19:26:18,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:18,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:18,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:18,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:18,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:18,816 INFO L87 Difference]: Start difference. First operand 729 states and 1027 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:18,972 INFO L93 Difference]: Finished difference Result 757 states and 1061 transitions. [2022-07-12 19:26:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:18,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-07-12 19:26:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:18,974 INFO L225 Difference]: With dead ends: 757 [2022-07-12 19:26:18,975 INFO L226 Difference]: Without dead ends: 744 [2022-07-12 19:26:18,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:18,975 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 85 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:18,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1398 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-12 19:26:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 727. [2022-07-12 19:26:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 644 states have (on average 1.3695652173913044) internal successors, (882), 652 states have internal predecessors, (882), 59 states have call successors, (59), 24 states have call predecessors, (59), 23 states have return successors, (82), 51 states have call predecessors, (82), 51 states have call successors, (82) [2022-07-12 19:26:18,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1023 transitions. [2022-07-12 19:26:18,986 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1023 transitions. Word has length 33 [2022-07-12 19:26:18,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:18,986 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 1023 transitions. [2022-07-12 19:26:18,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:18,986 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1023 transitions. [2022-07-12 19:26:18,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 19:26:18,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:18,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:18,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 19:26:18,987 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:18,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:18,988 INFO L85 PathProgramCache]: Analyzing trace with hash -698430317, now seen corresponding path program 1 times [2022-07-12 19:26:18,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:18,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088697194] [2022-07-12 19:26:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:18,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088697194] [2022-07-12 19:26:19,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088697194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:19,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:19,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:19,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414839193] [2022-07-12 19:26:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:19,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:19,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:19,038 INFO L87 Difference]: Start difference. First operand 727 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:19,331 INFO L93 Difference]: Finished difference Result 756 states and 1046 transitions. [2022-07-12 19:26:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-12 19:26:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:19,334 INFO L225 Difference]: With dead ends: 756 [2022-07-12 19:26:19,334 INFO L226 Difference]: Without dead ends: 756 [2022-07-12 19:26:19,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:19,335 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 724 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:19,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 941 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-07-12 19:26:19,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 718. [2022-07-12 19:26:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 635 states have (on average 1.3559055118110237) internal successors, (861), 643 states have internal predecessors, (861), 59 states have call successors, (59), 24 states have call predecessors, (59), 23 states have return successors, (82), 51 states have call predecessors, (82), 51 states have call successors, (82) [2022-07-12 19:26:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1002 transitions. [2022-07-12 19:26:19,345 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1002 transitions. Word has length 35 [2022-07-12 19:26:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:19,345 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 1002 transitions. [2022-07-12 19:26:19,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:19,346 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1002 transitions. [2022-07-12 19:26:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 19:26:19,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:19,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:19,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 19:26:19,347 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:19,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1034428387, now seen corresponding path program 1 times [2022-07-12 19:26:19,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:19,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327846100] [2022-07-12 19:26:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:19,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 19:26:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:19,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:19,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327846100] [2022-07-12 19:26:19,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327846100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:19,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:19,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:19,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149849512] [2022-07-12 19:26:19,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:19,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:19,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:19,370 INFO L87 Difference]: Start difference. First operand 718 states and 1002 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:19,505 INFO L93 Difference]: Finished difference Result 746 states and 1036 transitions. [2022-07-12 19:26:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:19,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-12 19:26:19,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:19,508 INFO L225 Difference]: With dead ends: 746 [2022-07-12 19:26:19,508 INFO L226 Difference]: Without dead ends: 733 [2022-07-12 19:26:19,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:19,509 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 85 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:19,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1385 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-07-12 19:26:19,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 716. [2022-07-12 19:26:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 634 states have (on average 1.3548895899053628) internal successors, (859), 642 states have internal predecessors, (859), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (81), 50 states have call predecessors, (81), 50 states have call successors, (81) [2022-07-12 19:26:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 998 transitions. [2022-07-12 19:26:19,520 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 998 transitions. Word has length 35 [2022-07-12 19:26:19,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:19,520 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 998 transitions. [2022-07-12 19:26:19,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 998 transitions. [2022-07-12 19:26:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 19:26:19,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:19,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:19,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 19:26:19,521 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash 447341985, now seen corresponding path program 1 times [2022-07-12 19:26:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:19,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136158348] [2022-07-12 19:26:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:19,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:19,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136158348] [2022-07-12 19:26:19,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136158348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:19,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:19,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:19,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696616886] [2022-07-12 19:26:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:19,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:19,544 INFO L87 Difference]: Start difference. First operand 716 states and 998 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:19,579 INFO L93 Difference]: Finished difference Result 724 states and 1009 transitions. [2022-07-12 19:26:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:19,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-12 19:26:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:19,582 INFO L225 Difference]: With dead ends: 724 [2022-07-12 19:26:19,582 INFO L226 Difference]: Without dead ends: 724 [2022-07-12 19:26:19,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:19,583 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 5 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:19,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 772 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-07-12 19:26:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2022-07-12 19:26:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 642 states have (on average 1.355140186915888) internal successors, (870), 650 states have internal predecessors, (870), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (81), 50 states have call predecessors, (81), 50 states have call successors, (81) [2022-07-12 19:26:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1009 transitions. [2022-07-12 19:26:19,600 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1009 transitions. Word has length 37 [2022-07-12 19:26:19,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:19,600 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1009 transitions. [2022-07-12 19:26:19,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1009 transitions. [2022-07-12 19:26:19,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 19:26:19,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:19,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:19,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 19:26:19,602 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1984798963, now seen corresponding path program 1 times [2022-07-12 19:26:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:19,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059858300] [2022-07-12 19:26:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:19,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 19:26:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:19,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:19,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059858300] [2022-07-12 19:26:19,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059858300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:19,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:19,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:19,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568418507] [2022-07-12 19:26:19,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:19,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:19,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:19,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:19,674 INFO L87 Difference]: Start difference. First operand 724 states and 1009 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:19,859 INFO L93 Difference]: Finished difference Result 746 states and 1033 transitions. [2022-07-12 19:26:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:19,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-12 19:26:19,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:19,863 INFO L225 Difference]: With dead ends: 746 [2022-07-12 19:26:19,864 INFO L226 Difference]: Without dead ends: 731 [2022-07-12 19:26:19,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:19,864 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 96 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:19,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1706 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:19,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-12 19:26:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 724. [2022-07-12 19:26:19,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 642 states have (on average 1.3364485981308412) internal successors, (858), 650 states have internal predecessors, (858), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (81), 50 states have call predecessors, (81), 50 states have call successors, (81) [2022-07-12 19:26:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 997 transitions. [2022-07-12 19:26:19,883 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 997 transitions. Word has length 38 [2022-07-12 19:26:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:19,883 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 997 transitions. [2022-07-12 19:26:19,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:19,884 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 997 transitions. [2022-07-12 19:26:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 19:26:19,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:19,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:19,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 19:26:19,885 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:19,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:19,886 INFO L85 PathProgramCache]: Analyzing trace with hash -615689806, now seen corresponding path program 1 times [2022-07-12 19:26:19,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:19,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309840029] [2022-07-12 19:26:19,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:19,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 19:26:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:19,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:19,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309840029] [2022-07-12 19:26:19,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309840029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:19,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:19,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:19,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295052703] [2022-07-12 19:26:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:19,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:19,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:19,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:19,928 INFO L87 Difference]: Start difference. First operand 724 states and 997 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:20,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:20,244 INFO L93 Difference]: Finished difference Result 744 states and 1017 transitions. [2022-07-12 19:26:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 19:26:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-12 19:26:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:20,248 INFO L225 Difference]: With dead ends: 744 [2022-07-12 19:26:20,248 INFO L226 Difference]: Without dead ends: 744 [2022-07-12 19:26:20,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-07-12 19:26:20,249 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 602 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:20,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1159 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:20,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-12 19:26:20,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 734. [2022-07-12 19:26:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.3312788906009245) internal successors, (864), 660 states have internal predecessors, (864), 58 states have call successors, (58), 24 states have call predecessors, (58), 26 states have return successors, (85), 50 states have call predecessors, (85), 50 states have call successors, (85) [2022-07-12 19:26:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1007 transitions. [2022-07-12 19:26:20,262 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1007 transitions. Word has length 38 [2022-07-12 19:26:20,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:20,262 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1007 transitions. [2022-07-12 19:26:20,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1007 transitions. [2022-07-12 19:26:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:20,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:20,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:20,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 19:26:20,264 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:20,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1374115068, now seen corresponding path program 1 times [2022-07-12 19:26:20,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:20,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301605083] [2022-07-12 19:26:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:20,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 19:26:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:20,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:20,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:20,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301605083] [2022-07-12 19:26:20,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301605083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:20,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:20,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370745231] [2022-07-12 19:26:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:20,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:20,302 INFO L87 Difference]: Start difference. First operand 734 states and 1007 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:20,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:20,476 INFO L93 Difference]: Finished difference Result 751 states and 1024 transitions. [2022-07-12 19:26:20,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 19:26:20,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:20,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:20,480 INFO L225 Difference]: With dead ends: 751 [2022-07-12 19:26:20,480 INFO L226 Difference]: Without dead ends: 732 [2022-07-12 19:26:20,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:20,480 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 329 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:20,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1735 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:20,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-12 19:26:20,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 726. [2022-07-12 19:26:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 642 states have (on average 1.3302180685358256) internal successors, (854), 653 states have internal predecessors, (854), 57 states have call successors, (57), 24 states have call predecessors, (57), 26 states have return successors, (84), 49 states have call predecessors, (84), 49 states have call successors, (84) [2022-07-12 19:26:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 995 transitions. [2022-07-12 19:26:20,494 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 995 transitions. Word has length 39 [2022-07-12 19:26:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:20,494 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 995 transitions. [2022-07-12 19:26:20,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 995 transitions. [2022-07-12 19:26:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:20,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:20,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:20,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 19:26:20,496 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1441558337, now seen corresponding path program 1 times [2022-07-12 19:26:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204548916] [2022-07-12 19:26:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:20,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:20,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204548916] [2022-07-12 19:26:20,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204548916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:20,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:20,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138357160] [2022-07-12 19:26:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:20,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:20,538 INFO L87 Difference]: Start difference. First operand 726 states and 995 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:20,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:20,746 INFO L93 Difference]: Finished difference Result 773 states and 1046 transitions. [2022-07-12 19:26:20,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:20,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:20,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:20,748 INFO L225 Difference]: With dead ends: 773 [2022-07-12 19:26:20,748 INFO L226 Difference]: Without dead ends: 748 [2022-07-12 19:26:20,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:20,749 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 367 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:20,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1650 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-07-12 19:26:20,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 713. [2022-07-12 19:26:20,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 630 states have (on average 1.326984126984127) internal successors, (836), 641 states have internal predecessors, (836), 56 states have call successors, (56), 24 states have call predecessors, (56), 26 states have return successors, (83), 48 states have call predecessors, (83), 48 states have call successors, (83) [2022-07-12 19:26:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 975 transitions. [2022-07-12 19:26:20,759 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 975 transitions. Word has length 39 [2022-07-12 19:26:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:20,759 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 975 transitions. [2022-07-12 19:26:20,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 975 transitions. [2022-07-12 19:26:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:20,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:20,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:20,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 19:26:20,761 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:20,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1087199807, now seen corresponding path program 1 times [2022-07-12 19:26:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:20,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664306185] [2022-07-12 19:26:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:20,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:20,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664306185] [2022-07-12 19:26:20,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664306185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:20,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:20,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:20,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050475021] [2022-07-12 19:26:20,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:20,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:20,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:20,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:20,815 INFO L87 Difference]: Start difference. First operand 713 states and 975 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:21,057 INFO L93 Difference]: Finished difference Result 719 states and 981 transitions. [2022-07-12 19:26:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 19:26:21,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:21,060 INFO L225 Difference]: With dead ends: 719 [2022-07-12 19:26:21,060 INFO L226 Difference]: Without dead ends: 716 [2022-07-12 19:26:21,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:21,061 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 58 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:21,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1704 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-12 19:26:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 715. [2022-07-12 19:26:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 631 states have (on average 1.3264659270998416) internal successors, (837), 643 states have internal predecessors, (837), 56 states have call successors, (56), 24 states have call predecessors, (56), 27 states have return successors, (84), 48 states have call predecessors, (84), 48 states have call successors, (84) [2022-07-12 19:26:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 977 transitions. [2022-07-12 19:26:21,070 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 977 transitions. Word has length 39 [2022-07-12 19:26:21,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:21,070 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 977 transitions. [2022-07-12 19:26:21,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 977 transitions. [2022-07-12 19:26:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-12 19:26:21,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:21,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:21,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 19:26:21,072 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1022695597, now seen corresponding path program 1 times [2022-07-12 19:26:21,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:21,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613690571] [2022-07-12 19:26:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:21,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 19:26:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:21,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613690571] [2022-07-12 19:26:21,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613690571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:21,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:21,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:21,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771689335] [2022-07-12 19:26:21,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:21,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:21,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:21,103 INFO L87 Difference]: Start difference. First operand 715 states and 977 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:21,311 INFO L93 Difference]: Finished difference Result 537 states and 702 transitions. [2022-07-12 19:26:21,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:21,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-12 19:26:21,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:21,313 INFO L225 Difference]: With dead ends: 537 [2022-07-12 19:26:21,313 INFO L226 Difference]: Without dead ends: 537 [2022-07-12 19:26:21,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:21,314 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 484 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:21,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 950 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-07-12 19:26:21,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 496. [2022-07-12 19:26:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 434 states have (on average 1.292626728110599) internal successors, (561), 445 states have internal predecessors, (561), 41 states have call successors, (41), 17 states have call predecessors, (41), 20 states have return successors, (48), 34 states have call predecessors, (48), 33 states have call successors, (48) [2022-07-12 19:26:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 650 transitions. [2022-07-12 19:26:21,327 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 650 transitions. Word has length 41 [2022-07-12 19:26:21,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:21,328 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 650 transitions. [2022-07-12 19:26:21,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 650 transitions. [2022-07-12 19:26:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 19:26:21,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:21,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:21,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 19:26:21,329 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 402911191, now seen corresponding path program 1 times [2022-07-12 19:26:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:21,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079109666] [2022-07-12 19:26:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:21,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 19:26:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:21,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:21,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079109666] [2022-07-12 19:26:21,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079109666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:21,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:21,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:21,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821998514] [2022-07-12 19:26:21,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:21,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:21,392 INFO L87 Difference]: Start difference. First operand 496 states and 650 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:21,556 INFO L93 Difference]: Finished difference Result 629 states and 821 transitions. [2022-07-12 19:26:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:21,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 19:26:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:21,558 INFO L225 Difference]: With dead ends: 629 [2022-07-12 19:26:21,558 INFO L226 Difference]: Without dead ends: 629 [2022-07-12 19:26:21,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:21,559 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 183 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:21,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 978 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-07-12 19:26:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 566. [2022-07-12 19:26:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 497 states have (on average 1.2816901408450705) internal successors, (637), 502 states have internal predecessors, (637), 43 states have call successors, (43), 19 states have call predecessors, (43), 25 states have return successors, (61), 45 states have call predecessors, (61), 35 states have call successors, (61) [2022-07-12 19:26:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 741 transitions. [2022-07-12 19:26:21,567 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 741 transitions. Word has length 40 [2022-07-12 19:26:21,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:21,567 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 741 transitions. [2022-07-12 19:26:21,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,567 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 741 transitions. [2022-07-12 19:26:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 19:26:21,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:21,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:21,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 19:26:21,568 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:21,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:21,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1016704727, now seen corresponding path program 1 times [2022-07-12 19:26:21,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:21,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355504765] [2022-07-12 19:26:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:21,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 19:26:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:21,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355504765] [2022-07-12 19:26:21,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355504765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:21,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:21,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:21,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496549232] [2022-07-12 19:26:21,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:21,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:21,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:21,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:21,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:21,609 INFO L87 Difference]: Start difference. First operand 566 states and 741 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:21,815 INFO L93 Difference]: Finished difference Result 562 states and 737 transitions. [2022-07-12 19:26:21,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:21,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 19:26:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:21,817 INFO L225 Difference]: With dead ends: 562 [2022-07-12 19:26:21,817 INFO L226 Difference]: Without dead ends: 562 [2022-07-12 19:26:21,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:21,818 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 457 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:21,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1061 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-07-12 19:26:21,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 523. [2022-07-12 19:26:21,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 458 states have (on average 1.2860262008733625) internal successors, (589), 470 states have internal predecessors, (589), 42 states have call successors, (42), 18 states have call predecessors, (42), 22 states have return successors, (51), 35 states have call predecessors, (51), 34 states have call successors, (51) [2022-07-12 19:26:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 682 transitions. [2022-07-12 19:26:21,824 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 682 transitions. Word has length 40 [2022-07-12 19:26:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:21,825 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 682 transitions. [2022-07-12 19:26:21,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 682 transitions. [2022-07-12 19:26:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-12 19:26:21,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:21,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:21,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 19:26:21,826 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash 58663888, now seen corresponding path program 1 times [2022-07-12 19:26:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:21,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155065573] [2022-07-12 19:26:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 19:26:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:21,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:21,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:21,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155065573] [2022-07-12 19:26:21,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155065573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:21,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:21,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:21,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157712139] [2022-07-12 19:26:21,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:21,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:21,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:21,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:21,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:21,863 INFO L87 Difference]: Start difference. First operand 523 states and 682 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:22,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:22,118 INFO L93 Difference]: Finished difference Result 546 states and 707 transitions. [2022-07-12 19:26:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:22,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-12 19:26:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:22,120 INFO L225 Difference]: With dead ends: 546 [2022-07-12 19:26:22,120 INFO L226 Difference]: Without dead ends: 545 [2022-07-12 19:26:22,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:22,121 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 82 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:22,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1964 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:22,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-07-12 19:26:22,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 529. [2022-07-12 19:26:22,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 464 states have (on average 1.2823275862068966) internal successors, (595), 476 states have internal predecessors, (595), 42 states have call successors, (42), 18 states have call predecessors, (42), 22 states have return successors, (51), 35 states have call predecessors, (51), 34 states have call successors, (51) [2022-07-12 19:26:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 688 transitions. [2022-07-12 19:26:22,127 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 688 transitions. Word has length 41 [2022-07-12 19:26:22,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:22,127 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 688 transitions. [2022-07-12 19:26:22,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:22,128 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 688 transitions. [2022-07-12 19:26:22,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-12 19:26:22,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:22,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:22,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 19:26:22,129 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:22,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:22,131 INFO L85 PathProgramCache]: Analyzing trace with hash 58387058, now seen corresponding path program 1 times [2022-07-12 19:26:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:22,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449780124] [2022-07-12 19:26:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:22,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 19:26:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:22,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:22,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449780124] [2022-07-12 19:26:22,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449780124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:22,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:22,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:22,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222862443] [2022-07-12 19:26:22,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:22,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:22,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:22,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:22,213 INFO L87 Difference]: Start difference. First operand 529 states and 688 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:22,477 INFO L93 Difference]: Finished difference Result 584 states and 761 transitions. [2022-07-12 19:26:22,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:22,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-12 19:26:22,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:22,479 INFO L225 Difference]: With dead ends: 584 [2022-07-12 19:26:22,479 INFO L226 Difference]: Without dead ends: 574 [2022-07-12 19:26:22,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:22,479 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 283 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:22,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1830 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:22,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-07-12 19:26:22,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 535. [2022-07-12 19:26:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 469 states have (on average 1.279317697228145) internal successors, (600), 482 states have internal predecessors, (600), 42 states have call successors, (42), 18 states have call predecessors, (42), 23 states have return successors, (58), 35 states have call predecessors, (58), 34 states have call successors, (58) [2022-07-12 19:26:22,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 700 transitions. [2022-07-12 19:26:22,486 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 700 transitions. Word has length 41 [2022-07-12 19:26:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:22,486 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 700 transitions. [2022-07-12 19:26:22,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 700 transitions. [2022-07-12 19:26:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-12 19:26:22,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:22,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:22,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 19:26:22,489 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:22,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1058782467, now seen corresponding path program 1 times [2022-07-12 19:26:22,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:22,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402940836] [2022-07-12 19:26:22,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:22,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 19:26:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:22,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:22,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402940836] [2022-07-12 19:26:22,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402940836] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:22,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:22,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:22,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22809410] [2022-07-12 19:26:22,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:22,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:22,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:22,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:22,534 INFO L87 Difference]: Start difference. First operand 535 states and 700 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:22,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:22,791 INFO L93 Difference]: Finished difference Result 600 states and 779 transitions. [2022-07-12 19:26:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:22,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-12 19:26:22,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:22,793 INFO L225 Difference]: With dead ends: 600 [2022-07-12 19:26:22,793 INFO L226 Difference]: Without dead ends: 588 [2022-07-12 19:26:22,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:22,793 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 630 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:22,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1112 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-07-12 19:26:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 521. [2022-07-12 19:26:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 457 states have (on average 1.2844638949671772) internal successors, (587), 469 states have internal predecessors, (587), 41 states have call successors, (41), 18 states have call predecessors, (41), 22 states have return successors, (50), 34 states have call predecessors, (50), 33 states have call successors, (50) [2022-07-12 19:26:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 678 transitions. [2022-07-12 19:26:22,800 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 678 transitions. Word has length 42 [2022-07-12 19:26:22,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:22,800 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 678 transitions. [2022-07-12 19:26:22,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:22,800 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 678 transitions. [2022-07-12 19:26:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-12 19:26:22,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:22,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:22,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 19:26:22,803 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash 109080568, now seen corresponding path program 1 times [2022-07-12 19:26:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:22,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732201323] [2022-07-12 19:26:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:22,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:22,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 19:26:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:22,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732201323] [2022-07-12 19:26:22,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732201323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:22,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:22,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:22,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611307826] [2022-07-12 19:26:22,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:22,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:22,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:22,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:22,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:22,875 INFO L87 Difference]: Start difference. First operand 521 states and 678 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:23,056 INFO L93 Difference]: Finished difference Result 487 states and 626 transitions. [2022-07-12 19:26:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:23,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-12 19:26:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:23,058 INFO L225 Difference]: With dead ends: 487 [2022-07-12 19:26:23,058 INFO L226 Difference]: Without dead ends: 487 [2022-07-12 19:26:23,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:23,058 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 106 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:23,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1774 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:23,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-07-12 19:26:23,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 475. [2022-07-12 19:26:23,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 417 states have (on average 1.2661870503597121) internal successors, (528), 425 states have internal predecessors, (528), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (45), 33 states have call predecessors, (45), 32 states have call successors, (45) [2022-07-12 19:26:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 612 transitions. [2022-07-12 19:26:23,064 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 612 transitions. Word has length 44 [2022-07-12 19:26:23,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:23,064 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 612 transitions. [2022-07-12 19:26:23,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:23,065 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 612 transitions. [2022-07-12 19:26:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 19:26:23,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:23,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:23,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 19:26:23,066 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:23,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1762527581, now seen corresponding path program 1 times [2022-07-12 19:26:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:23,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821591876] [2022-07-12 19:26:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:23,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 19:26:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:23,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:23,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821591876] [2022-07-12 19:26:23,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821591876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:23,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:23,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:23,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253671414] [2022-07-12 19:26:23,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:23,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:23,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:23,123 INFO L87 Difference]: Start difference. First operand 475 states and 612 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:23,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:23,340 INFO L93 Difference]: Finished difference Result 487 states and 624 transitions. [2022-07-12 19:26:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:23,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-07-12 19:26:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:23,342 INFO L225 Difference]: With dead ends: 487 [2022-07-12 19:26:23,342 INFO L226 Difference]: Without dead ends: 487 [2022-07-12 19:26:23,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:23,342 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 408 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:23,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1038 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-07-12 19:26:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 475. [2022-07-12 19:26:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 417 states have (on average 1.2613908872901678) internal successors, (526), 425 states have internal predecessors, (526), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (45), 33 states have call predecessors, (45), 32 states have call successors, (45) [2022-07-12 19:26:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 610 transitions. [2022-07-12 19:26:23,351 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 610 transitions. Word has length 46 [2022-07-12 19:26:23,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:23,351 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 610 transitions. [2022-07-12 19:26:23,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 610 transitions. [2022-07-12 19:26:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 19:26:23,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:23,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 19:26:23,352 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash -995885365, now seen corresponding path program 1 times [2022-07-12 19:26:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:23,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884898271] [2022-07-12 19:26:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 19:26:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:23,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:23,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884898271] [2022-07-12 19:26:23,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884898271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:23,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:23,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:23,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151773970] [2022-07-12 19:26:23,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:23,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:23,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:23,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:23,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:23,410 INFO L87 Difference]: Start difference. First operand 475 states and 610 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:23,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:23,650 INFO L93 Difference]: Finished difference Result 496 states and 632 transitions. [2022-07-12 19:26:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:23,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-07-12 19:26:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:23,652 INFO L225 Difference]: With dead ends: 496 [2022-07-12 19:26:23,652 INFO L226 Difference]: Without dead ends: 483 [2022-07-12 19:26:23,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:23,653 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 78 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:23,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1952 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-07-12 19:26:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 471. [2022-07-12 19:26:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 414 states have (on average 1.2608695652173914) internal successors, (522), 422 states have internal predecessors, (522), 38 states have call successors, (38), 17 states have call predecessors, (38), 18 states have return successors, (44), 32 states have call predecessors, (44), 31 states have call successors, (44) [2022-07-12 19:26:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 604 transitions. [2022-07-12 19:26:23,659 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 604 transitions. Word has length 46 [2022-07-12 19:26:23,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:23,659 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 604 transitions. [2022-07-12 19:26:23,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:23,659 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 604 transitions. [2022-07-12 19:26:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:23,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:23,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:23,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 19:26:23,660 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:23,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:23,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2101663171, now seen corresponding path program 1 times [2022-07-12 19:26:23,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:23,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539687233] [2022-07-12 19:26:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:23,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 19:26:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:23,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:23,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539687233] [2022-07-12 19:26:23,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539687233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:23,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:23,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:23,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857850048] [2022-07-12 19:26:23,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:23,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:23,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:23,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:23,713 INFO L87 Difference]: Start difference. First operand 471 states and 604 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:24,023 INFO L93 Difference]: Finished difference Result 510 states and 645 transitions. [2022-07-12 19:26:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:24,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-12 19:26:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:24,025 INFO L225 Difference]: With dead ends: 510 [2022-07-12 19:26:24,025 INFO L226 Difference]: Without dead ends: 491 [2022-07-12 19:26:24,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:24,026 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 171 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:24,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1423 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:24,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-12 19:26:24,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 466. [2022-07-12 19:26:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 411 states have (on average 1.2603406326034063) internal successors, (518), 418 states have internal predecessors, (518), 37 states have call successors, (37), 16 states have call predecessors, (37), 17 states have return successors, (43), 32 states have call predecessors, (43), 30 states have call successors, (43) [2022-07-12 19:26:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 598 transitions. [2022-07-12 19:26:24,032 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 598 transitions. Word has length 48 [2022-07-12 19:26:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:24,032 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 598 transitions. [2022-07-12 19:26:24,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 598 transitions. [2022-07-12 19:26:24,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-12 19:26:24,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:24,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:24,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 19:26:24,033 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:24,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:24,034 INFO L85 PathProgramCache]: Analyzing trace with hash -217509127, now seen corresponding path program 1 times [2022-07-12 19:26:24,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:24,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275127791] [2022-07-12 19:26:24,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:24,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 19:26:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:24,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275127791] [2022-07-12 19:26:24,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275127791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:24,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:24,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929890735] [2022-07-12 19:26:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:24,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:24,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:24,073 INFO L87 Difference]: Start difference. First operand 466 states and 598 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:24,204 INFO L93 Difference]: Finished difference Result 557 states and 709 transitions. [2022-07-12 19:26:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-07-12 19:26:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:24,206 INFO L225 Difference]: With dead ends: 557 [2022-07-12 19:26:24,206 INFO L226 Difference]: Without dead ends: 557 [2022-07-12 19:26:24,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:24,206 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 192 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:24,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 889 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-07-12 19:26:24,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 519. [2022-07-12 19:26:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 459 states have (on average 1.261437908496732) internal successors, (579), 465 states have internal predecessors, (579), 39 states have call successors, (39), 18 states have call predecessors, (39), 20 states have return successors, (49), 36 states have call predecessors, (49), 33 states have call successors, (49) [2022-07-12 19:26:24,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 667 transitions. [2022-07-12 19:26:24,214 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 667 transitions. Word has length 49 [2022-07-12 19:26:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:24,214 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 667 transitions. [2022-07-12 19:26:24,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 667 transitions. [2022-07-12 19:26:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:24,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:24,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:24,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 19:26:24,215 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:24,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1102392332, now seen corresponding path program 1 times [2022-07-12 19:26:24,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:24,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524498066] [2022-07-12 19:26:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:24,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:24,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524498066] [2022-07-12 19:26:24,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524498066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:24,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:24,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:24,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867373906] [2022-07-12 19:26:24,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:24,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:24,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:24,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:24,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:24,249 INFO L87 Difference]: Start difference. First operand 519 states and 667 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:24,389 INFO L93 Difference]: Finished difference Result 537 states and 690 transitions. [2022-07-12 19:26:24,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:24,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-12 19:26:24,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:24,391 INFO L225 Difference]: With dead ends: 537 [2022-07-12 19:26:24,391 INFO L226 Difference]: Without dead ends: 537 [2022-07-12 19:26:24,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:24,392 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 74 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:24,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1111 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:24,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-07-12 19:26:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 521. [2022-07-12 19:26:24,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 461 states have (on average 1.2603036876355749) internal successors, (581), 467 states have internal predecessors, (581), 39 states have call successors, (39), 18 states have call predecessors, (39), 20 states have return successors, (49), 36 states have call predecessors, (49), 33 states have call successors, (49) [2022-07-12 19:26:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 669 transitions. [2022-07-12 19:26:24,398 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 669 transitions. Word has length 48 [2022-07-12 19:26:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:24,398 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 669 transitions. [2022-07-12 19:26:24,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 669 transitions. [2022-07-12 19:26:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:24,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:24,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:24,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 19:26:24,400 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:24,400 INFO L85 PathProgramCache]: Analyzing trace with hash -460835788, now seen corresponding path program 1 times [2022-07-12 19:26:24,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:24,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587407421] [2022-07-12 19:26:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:24,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:24,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:24,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587407421] [2022-07-12 19:26:24,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587407421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:24,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:24,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:24,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870793052] [2022-07-12 19:26:24,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:24,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:24,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:24,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:24,447 INFO L87 Difference]: Start difference. First operand 521 states and 669 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:24,673 INFO L93 Difference]: Finished difference Result 510 states and 653 transitions. [2022-07-12 19:26:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:24,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-12 19:26:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:24,675 INFO L225 Difference]: With dead ends: 510 [2022-07-12 19:26:24,675 INFO L226 Difference]: Without dead ends: 507 [2022-07-12 19:26:24,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:24,676 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 56 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:24,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1897 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-07-12 19:26:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 504. [2022-07-12 19:26:24,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 446 states have (on average 1.2600896860986548) internal successors, (562), 451 states have internal predecessors, (562), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (47), 35 states have call predecessors, (47), 33 states have call successors, (47) [2022-07-12 19:26:24,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 647 transitions. [2022-07-12 19:26:24,683 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 647 transitions. Word has length 48 [2022-07-12 19:26:24,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:24,683 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 647 transitions. [2022-07-12 19:26:24,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 647 transitions. [2022-07-12 19:26:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 19:26:24,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:24,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:24,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 19:26:24,684 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1942433313, now seen corresponding path program 1 times [2022-07-12 19:26:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:24,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995624773] [2022-07-12 19:26:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:24,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 19:26:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:24,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995624773] [2022-07-12 19:26:24,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995624773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:24,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:24,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:24,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716005773] [2022-07-12 19:26:24,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:24,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:24,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:24,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:24,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:24,744 INFO L87 Difference]: Start difference. First operand 504 states and 647 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:24,973 INFO L93 Difference]: Finished difference Result 545 states and 695 transitions. [2022-07-12 19:26:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:24,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-07-12 19:26:24,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:24,975 INFO L225 Difference]: With dead ends: 545 [2022-07-12 19:26:24,975 INFO L226 Difference]: Without dead ends: 545 [2022-07-12 19:26:24,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:24,975 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 85 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:24,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1835 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-07-12 19:26:24,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 504. [2022-07-12 19:26:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 446 states have (on average 1.2556053811659194) internal successors, (560), 451 states have internal predecessors, (560), 38 states have call successors, (38), 18 states have call predecessors, (38), 19 states have return successors, (47), 35 states have call predecessors, (47), 33 states have call successors, (47) [2022-07-12 19:26:24,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 645 transitions. [2022-07-12 19:26:24,982 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 645 transitions. Word has length 51 [2022-07-12 19:26:24,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:24,982 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 645 transitions. [2022-07-12 19:26:24,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 645 transitions. [2022-07-12 19:26:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 19:26:24,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:24,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:24,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 19:26:24,983 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:24,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1454966093, now seen corresponding path program 1 times [2022-07-12 19:26:24,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:24,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348931644] [2022-07-12 19:26:24,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:24,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 19:26:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:25,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:25,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348931644] [2022-07-12 19:26:25,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348931644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:25,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:25,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:25,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407998071] [2022-07-12 19:26:25,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:25,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:25,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:25,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:25,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:25,046 INFO L87 Difference]: Start difference. First operand 504 states and 645 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:25,372 INFO L93 Difference]: Finished difference Result 514 states and 655 transitions. [2022-07-12 19:26:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:25,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-12 19:26:25,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:25,374 INFO L225 Difference]: With dead ends: 514 [2022-07-12 19:26:25,374 INFO L226 Difference]: Without dead ends: 500 [2022-07-12 19:26:25,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:25,374 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 128 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:25,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1643 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:25,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-12 19:26:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 487. [2022-07-12 19:26:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 431 states have (on average 1.2436194895591648) internal successors, (536), 436 states have internal predecessors, (536), 36 states have call successors, (36), 18 states have call predecessors, (36), 19 states have return successors, (45), 33 states have call predecessors, (45), 31 states have call successors, (45) [2022-07-12 19:26:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 617 transitions. [2022-07-12 19:26:25,380 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 617 transitions. Word has length 51 [2022-07-12 19:26:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:25,380 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 617 transitions. [2022-07-12 19:26:25,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 617 transitions. [2022-07-12 19:26:25,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:25,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:25,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:25,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-12 19:26:25,382 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1872588061, now seen corresponding path program 1 times [2022-07-12 19:26:25,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:25,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558879467] [2022-07-12 19:26:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 19:26:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:25,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:25,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558879467] [2022-07-12 19:26:25,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558879467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:25,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:25,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:25,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260854046] [2022-07-12 19:26:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:25,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:25,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:25,430 INFO L87 Difference]: Start difference. First operand 487 states and 617 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:25,730 INFO L93 Difference]: Finished difference Result 495 states and 626 transitions. [2022-07-12 19:26:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:25,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-07-12 19:26:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:25,732 INFO L225 Difference]: With dead ends: 495 [2022-07-12 19:26:25,733 INFO L226 Difference]: Without dead ends: 495 [2022-07-12 19:26:25,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:25,733 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 153 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:25,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1326 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-07-12 19:26:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 469. [2022-07-12 19:26:25,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 415 states have (on average 1.2481927710843375) internal successors, (518), 420 states have internal predecessors, (518), 35 states have call successors, (35), 17 states have call predecessors, (35), 18 states have return successors, (44), 32 states have call predecessors, (44), 30 states have call successors, (44) [2022-07-12 19:26:25,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 597 transitions. [2022-07-12 19:26:25,738 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 597 transitions. Word has length 52 [2022-07-12 19:26:25,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:25,739 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 597 transitions. [2022-07-12 19:26:25,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:25,739 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 597 transitions. [2022-07-12 19:26:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 19:26:25,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:25,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:25,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-12 19:26:25,740 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:25,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1296785642, now seen corresponding path program 1 times [2022-07-12 19:26:25,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:25,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796640660] [2022-07-12 19:26:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:25,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 19:26:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:25,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:25,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796640660] [2022-07-12 19:26:25,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796640660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:25,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:25,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:25,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758216487] [2022-07-12 19:26:25,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:25,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:25,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:25,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:25,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:25,815 INFO L87 Difference]: Start difference. First operand 469 states and 597 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:26,101 INFO L93 Difference]: Finished difference Result 493 states and 623 transitions. [2022-07-12 19:26:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 19:26:26,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-07-12 19:26:26,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:26,103 INFO L225 Difference]: With dead ends: 493 [2022-07-12 19:26:26,103 INFO L226 Difference]: Without dead ends: 477 [2022-07-12 19:26:26,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:26,103 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 86 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:26,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1889 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-07-12 19:26:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 465. [2022-07-12 19:26:26,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 412 states have (on average 1.2475728155339805) internal successors, (514), 417 states have internal predecessors, (514), 34 states have call successors, (34), 17 states have call predecessors, (34), 18 states have return successors, (43), 31 states have call predecessors, (43), 29 states have call successors, (43) [2022-07-12 19:26:26,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 591 transitions. [2022-07-12 19:26:26,109 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 591 transitions. Word has length 51 [2022-07-12 19:26:26,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:26,109 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 591 transitions. [2022-07-12 19:26:26,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 591 transitions. [2022-07-12 19:26:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:26,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:26,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:26,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-12 19:26:26,110 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash 507953388, now seen corresponding path program 1 times [2022-07-12 19:26:26,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:26,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073692181] [2022-07-12 19:26:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:26,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 19:26:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:26,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:26,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073692181] [2022-07-12 19:26:26,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073692181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:26,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:26,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178990013] [2022-07-12 19:26:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:26,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:26,151 INFO L87 Difference]: Start difference. First operand 465 states and 591 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:26,416 INFO L93 Difference]: Finished difference Result 489 states and 617 transitions. [2022-07-12 19:26:26,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 19:26:26,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:26,418 INFO L225 Difference]: With dead ends: 489 [2022-07-12 19:26:26,418 INFO L226 Difference]: Without dead ends: 472 [2022-07-12 19:26:26,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:26,418 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 86 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:26,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1851 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-07-12 19:26:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 460. [2022-07-12 19:26:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 408 states have (on average 1.2475490196078431) internal successors, (509), 413 states have internal predecessors, (509), 33 states have call successors, (33), 17 states have call predecessors, (33), 18 states have return successors, (42), 30 states have call predecessors, (42), 28 states have call successors, (42) [2022-07-12 19:26:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 584 transitions. [2022-07-12 19:26:26,423 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 584 transitions. Word has length 52 [2022-07-12 19:26:26,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:26,423 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 584 transitions. [2022-07-12 19:26:26,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,424 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 584 transitions. [2022-07-12 19:26:26,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:26,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:26,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:26,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-12 19:26:26,425 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash 750831986, now seen corresponding path program 1 times [2022-07-12 19:26:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:26,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33073763] [2022-07-12 19:26:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:26,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 19:26:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:26,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33073763] [2022-07-12 19:26:26,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33073763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:26,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:26,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:26,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908646706] [2022-07-12 19:26:26,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:26,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:26,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:26,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:26,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:26,464 INFO L87 Difference]: Start difference. First operand 460 states and 584 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:26,699 INFO L93 Difference]: Finished difference Result 484 states and 610 transitions. [2022-07-12 19:26:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 19:26:26,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:26,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:26,701 INFO L225 Difference]: With dead ends: 484 [2022-07-12 19:26:26,701 INFO L226 Difference]: Without dead ends: 468 [2022-07-12 19:26:26,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:26,701 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 86 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:26,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1805 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-07-12 19:26:26,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 456. [2022-07-12 19:26:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 405 states have (on average 1.2469135802469136) internal successors, (505), 410 states have internal predecessors, (505), 32 states have call successors, (32), 17 states have call predecessors, (32), 18 states have return successors, (41), 29 states have call predecessors, (41), 27 states have call successors, (41) [2022-07-12 19:26:26,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 578 transitions. [2022-07-12 19:26:26,707 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 578 transitions. Word has length 52 [2022-07-12 19:26:26,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:26,707 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 578 transitions. [2022-07-12 19:26:26,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 578 transitions. [2022-07-12 19:26:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:26,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:26,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:26,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-12 19:26:26,709 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:26,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -831882757, now seen corresponding path program 1 times [2022-07-12 19:26:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:26,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117141651] [2022-07-12 19:26:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 19:26:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:26,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:26,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117141651] [2022-07-12 19:26:26,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117141651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:26,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:26,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:26,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457257429] [2022-07-12 19:26:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:26,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:26,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:26,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:26,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:26,745 INFO L87 Difference]: Start difference. First operand 456 states and 578 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:26,954 INFO L93 Difference]: Finished difference Result 476 states and 599 transitions. [2022-07-12 19:26:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:26,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:26,956 INFO L225 Difference]: With dead ends: 476 [2022-07-12 19:26:26,956 INFO L226 Difference]: Without dead ends: 446 [2022-07-12 19:26:26,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:26,956 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 76 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:26,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1642 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:26,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-07-12 19:26:26,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 434. [2022-07-12 19:26:26,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 384 states have (on average 1.25) internal successors, (480), 389 states have internal predecessors, (480), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (40), 28 states have call predecessors, (40), 26 states have call successors, (40) [2022-07-12 19:26:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 551 transitions. [2022-07-12 19:26:26,961 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 551 transitions. Word has length 52 [2022-07-12 19:26:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:26,962 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 551 transitions. [2022-07-12 19:26:26,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 551 transitions. [2022-07-12 19:26:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 19:26:26,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:26,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:26,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-12 19:26:26,965 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:26,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:26,965 INFO L85 PathProgramCache]: Analyzing trace with hash 860965226, now seen corresponding path program 1 times [2022-07-12 19:26:26,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:26,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872989372] [2022-07-12 19:26:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:26,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 19:26:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:27,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:27,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872989372] [2022-07-12 19:26:27,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872989372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:27,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:27,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:27,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826898451] [2022-07-12 19:26:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:27,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:27,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:27,025 INFO L87 Difference]: Start difference. First operand 434 states and 551 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:27,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:27,218 INFO L93 Difference]: Finished difference Result 578 states and 751 transitions. [2022-07-12 19:26:27,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:27,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-07-12 19:26:27,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:27,220 INFO L225 Difference]: With dead ends: 578 [2022-07-12 19:26:27,220 INFO L226 Difference]: Without dead ends: 578 [2022-07-12 19:26:27,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:27,221 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 137 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:27,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1682 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:27,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-07-12 19:26:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 434. [2022-07-12 19:26:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 389 states have internal predecessors, (479), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (40), 28 states have call predecessors, (40), 26 states have call successors, (40) [2022-07-12 19:26:27,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 550 transitions. [2022-07-12 19:26:27,227 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 550 transitions. Word has length 54 [2022-07-12 19:26:27,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:27,227 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 550 transitions. [2022-07-12 19:26:27,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:27,227 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 550 transitions. [2022-07-12 19:26:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 19:26:27,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:27,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:27,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-12 19:26:27,244 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:27,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:27,244 INFO L85 PathProgramCache]: Analyzing trace with hash 65580225, now seen corresponding path program 1 times [2022-07-12 19:26:27,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:27,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471978210] [2022-07-12 19:26:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:27,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 19:26:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:27,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:27,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471978210] [2022-07-12 19:26:27,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471978210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:27,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:27,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:27,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114510322] [2022-07-12 19:26:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:27,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:27,302 INFO L87 Difference]: Start difference. First operand 434 states and 550 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:27,543 INFO L93 Difference]: Finished difference Result 458 states and 576 transitions. [2022-07-12 19:26:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 19:26:27,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-12 19:26:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:27,545 INFO L225 Difference]: With dead ends: 458 [2022-07-12 19:26:27,545 INFO L226 Difference]: Without dead ends: 424 [2022-07-12 19:26:27,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:27,545 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 94 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:27,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1603 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-12 19:26:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 412. [2022-07-12 19:26:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 365 states have (on average 1.2465753424657535) internal successors, (455), 370 states have internal predecessors, (455), 29 states have call successors, (29), 16 states have call predecessors, (29), 17 states have return successors, (38), 26 states have call predecessors, (38), 24 states have call successors, (38) [2022-07-12 19:26:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 522 transitions. [2022-07-12 19:26:27,550 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 522 transitions. Word has length 56 [2022-07-12 19:26:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:27,550 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 522 transitions. [2022-07-12 19:26:27,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 522 transitions. [2022-07-12 19:26:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-12 19:26:27,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:27,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:27,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-12 19:26:27,551 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -867510019, now seen corresponding path program 1 times [2022-07-12 19:26:27,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:27,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8551828] [2022-07-12 19:26:27,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:27,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 19:26:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 19:26:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:27,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:27,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8551828] [2022-07-12 19:26:27,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8551828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:27,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:27,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:27,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401720768] [2022-07-12 19:26:27,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:27,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:27,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:27,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:27,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:27,590 INFO L87 Difference]: Start difference. First operand 412 states and 522 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:27,770 INFO L93 Difference]: Finished difference Result 399 states and 496 transitions. [2022-07-12 19:26:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:27,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2022-07-12 19:26:27,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:27,772 INFO L225 Difference]: With dead ends: 399 [2022-07-12 19:26:27,772 INFO L226 Difference]: Without dead ends: 399 [2022-07-12 19:26:27,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:27,772 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 198 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:27,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1084 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-07-12 19:26:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 379. [2022-07-12 19:26:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 337 states have (on average 1.2462908011869436) internal successors, (420), 341 states have internal predecessors, (420), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-12 19:26:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 472 transitions. [2022-07-12 19:26:27,777 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 472 transitions. Word has length 62 [2022-07-12 19:26:27,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:27,777 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 472 transitions. [2022-07-12 19:26:27,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 472 transitions. [2022-07-12 19:26:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 19:26:27,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:27,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:27,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-12 19:26:27,779 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:27,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:27,779 INFO L85 PathProgramCache]: Analyzing trace with hash 695777282, now seen corresponding path program 1 times [2022-07-12 19:26:27,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:27,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154072082] [2022-07-12 19:26:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:27,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 19:26:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 19:26:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:27,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:27,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154072082] [2022-07-12 19:26:27,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154072082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:27,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:27,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 19:26:27,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734290789] [2022-07-12 19:26:27,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:27,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 19:26:27,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:27,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 19:26:27,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:27,847 INFO L87 Difference]: Start difference. First operand 379 states and 472 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:28,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:28,122 INFO L93 Difference]: Finished difference Result 435 states and 539 transitions. [2022-07-12 19:26:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 19:26:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 66 [2022-07-12 19:26:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:28,124 INFO L225 Difference]: With dead ends: 435 [2022-07-12 19:26:28,124 INFO L226 Difference]: Without dead ends: 419 [2022-07-12 19:26:28,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-07-12 19:26:28,125 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 294 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:28,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1507 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:28,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-12 19:26:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 387. [2022-07-12 19:26:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 344 states have (on average 1.2412790697674418) internal successors, (427), 348 states have internal predecessors, (427), 26 states have call successors, (26), 15 states have call predecessors, (26), 16 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-12 19:26:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 482 transitions. [2022-07-12 19:26:28,129 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 482 transitions. Word has length 66 [2022-07-12 19:26:28,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:28,129 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 482 transitions. [2022-07-12 19:26:28,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:28,129 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 482 transitions. [2022-07-12 19:26:28,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 19:26:28,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:28,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:28,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-12 19:26:28,130 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:28,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1973586757, now seen corresponding path program 1 times [2022-07-12 19:26:28,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:28,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029583510] [2022-07-12 19:26:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:28,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 19:26:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 19:26:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:28,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:28,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029583510] [2022-07-12 19:26:28,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029583510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:28,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:28,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363147962] [2022-07-12 19:26:28,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:28,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:28,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:28,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:28,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:28,179 INFO L87 Difference]: Start difference. First operand 387 states and 482 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 19:26:28,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:28,483 INFO L93 Difference]: Finished difference Result 507 states and 612 transitions. [2022-07-12 19:26:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:28,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2022-07-12 19:26:28,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:28,485 INFO L225 Difference]: With dead ends: 507 [2022-07-12 19:26:28,485 INFO L226 Difference]: Without dead ends: 507 [2022-07-12 19:26:28,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-07-12 19:26:28,486 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 511 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:28,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1248 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-07-12 19:26:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 481. [2022-07-12 19:26:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 428 states have (on average 1.2313084112149533) internal successors, (527), 434 states have internal predecessors, (527), 28 states have call successors, (28), 21 states have call predecessors, (28), 24 states have return successors, (31), 26 states have call predecessors, (31), 24 states have call successors, (31) [2022-07-12 19:26:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 586 transitions. [2022-07-12 19:26:28,491 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 586 transitions. Word has length 68 [2022-07-12 19:26:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:28,491 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 586 transitions. [2022-07-12 19:26:28,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 19:26:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 586 transitions. [2022-07-12 19:26:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 19:26:28,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:28,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:28,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-12 19:26:28,501 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:28,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1438395151, now seen corresponding path program 1 times [2022-07-12 19:26:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:28,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678452242] [2022-07-12 19:26:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 19:26:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 19:26:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:28,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:28,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678452242] [2022-07-12 19:26:28,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678452242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:28,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:28,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 19:26:28,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481318853] [2022-07-12 19:26:28,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:28,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 19:26:28,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:28,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 19:26:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:28,576 INFO L87 Difference]: Start difference. First operand 481 states and 586 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:28,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:28,877 INFO L93 Difference]: Finished difference Result 517 states and 624 transitions. [2022-07-12 19:26:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 19:26:28,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2022-07-12 19:26:28,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:28,879 INFO L225 Difference]: With dead ends: 517 [2022-07-12 19:26:28,879 INFO L226 Difference]: Without dead ends: 501 [2022-07-12 19:26:28,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-12 19:26:28,879 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 95 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:28,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1752 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-07-12 19:26:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 473. [2022-07-12 19:26:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 421 states have (on average 1.2327790973871735) internal successors, (519), 427 states have internal predecessors, (519), 28 states have call successors, (28), 21 states have call predecessors, (28), 23 states have return successors, (29), 25 states have call predecessors, (29), 24 states have call successors, (29) [2022-07-12 19:26:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 576 transitions. [2022-07-12 19:26:28,884 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 576 transitions. Word has length 67 [2022-07-12 19:26:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:28,885 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 576 transitions. [2022-07-12 19:26:28,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 576 transitions. [2022-07-12 19:26:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 19:26:28,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:28,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:28,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-12 19:26:28,886 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:28,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1419148950, now seen corresponding path program 1 times [2022-07-12 19:26:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:28,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954993009] [2022-07-12 19:26:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:28,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 19:26:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 19:26:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 19:26:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:28,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:28,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954993009] [2022-07-12 19:26:28,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954993009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:28,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:28,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 19:26:28,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054276693] [2022-07-12 19:26:28,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:28,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 19:26:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:28,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 19:26:28,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:28,953 INFO L87 Difference]: Start difference. First operand 473 states and 576 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 19:26:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:29,337 INFO L93 Difference]: Finished difference Result 473 states and 575 transitions. [2022-07-12 19:26:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 19:26:29,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 69 [2022-07-12 19:26:29,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:29,339 INFO L225 Difference]: With dead ends: 473 [2022-07-12 19:26:29,339 INFO L226 Difference]: Without dead ends: 423 [2022-07-12 19:26:29,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-07-12 19:26:29,339 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 220 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:29,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1414 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-12 19:26:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 420. [2022-07-12 19:26:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 374 states have (on average 1.2379679144385027) internal successors, (463), 379 states have internal predecessors, (463), 25 states have call successors, (25), 19 states have call predecessors, (25), 20 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-12 19:26:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 514 transitions. [2022-07-12 19:26:29,355 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 514 transitions. Word has length 69 [2022-07-12 19:26:29,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:29,355 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 514 transitions. [2022-07-12 19:26:29,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 19:26:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 514 transitions. [2022-07-12 19:26:29,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 19:26:29,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:29,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:29,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-12 19:26:29,357 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:29,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1845717767, now seen corresponding path program 1 times [2022-07-12 19:26:29,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:29,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300896032] [2022-07-12 19:26:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:29,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:29,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 19:26:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:29,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 19:26:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:29,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:29,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300896032] [2022-07-12 19:26:29,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300896032] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:29,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:29,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:29,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892781746] [2022-07-12 19:26:29,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:29,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:29,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:29,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:29,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:29,435 INFO L87 Difference]: Start difference. First operand 420 states and 514 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:29,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:29,659 INFO L93 Difference]: Finished difference Result 472 states and 578 transitions. [2022-07-12 19:26:29,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:29,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2022-07-12 19:26:29,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:29,661 INFO L225 Difference]: With dead ends: 472 [2022-07-12 19:26:29,661 INFO L226 Difference]: Without dead ends: 447 [2022-07-12 19:26:29,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:26:29,662 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:29,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1429 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:29,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-07-12 19:26:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 431. [2022-07-12 19:26:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 384 states have (on average 1.21875) internal successors, (468), 390 states have internal predecessors, (468), 26 states have call successors, (26), 19 states have call predecessors, (26), 20 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-12 19:26:29,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 520 transitions. [2022-07-12 19:26:29,669 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 520 transitions. Word has length 71 [2022-07-12 19:26:29,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:29,669 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 520 transitions. [2022-07-12 19:26:29,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 520 transitions. [2022-07-12 19:26:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 19:26:29,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:29,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:29,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-12 19:26:29,670 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:29,670 INFO L85 PathProgramCache]: Analyzing trace with hash 661499576, now seen corresponding path program 1 times [2022-07-12 19:26:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:29,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922022742] [2022-07-12 19:26:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 19:26:29,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 19:26:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 19:26:29,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 19:26:29,738 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 19:26:29,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-12 19:26:29,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-12 19:26:29,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-12 19:26:29,746 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:29,748 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 19:26:29,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 07:26:29 BoogieIcfgContainer [2022-07-12 19:26:29,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 19:26:29,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 19:26:29,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 19:26:29,834 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 19:26:29,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:15" (3/4) ... [2022-07-12 19:26:29,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 19:26:29,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 19:26:29,837 INFO L158 Benchmark]: Toolchain (without parser) took 15776.80ms. Allocated memory was 113.2MB in the beginning and 257.9MB in the end (delta: 144.7MB). Free memory was 84.7MB in the beginning and 186.5MB in the end (delta: -101.7MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2022-07-12 19:26:29,837 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory was 69.8MB in the beginning and 69.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 19:26:29,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.56ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 76.1MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 19:26:29,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.24ms. Allocated memory is still 113.2MB. Free memory was 76.1MB in the beginning and 69.6MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 19:26:29,838 INFO L158 Benchmark]: Boogie Preprocessor took 62.27ms. Allocated memory is still 113.2MB. Free memory was 69.6MB in the beginning and 65.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 19:26:29,838 INFO L158 Benchmark]: RCFGBuilder took 871.37ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 65.8MB in the beginning and 116.0MB in the end (delta: -50.2MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-07-12 19:26:29,842 INFO L158 Benchmark]: TraceAbstraction took 14410.49ms. Allocated memory was 146.8MB in the beginning and 257.9MB in the end (delta: 111.1MB). Free memory was 116.0MB in the beginning and 186.5MB in the end (delta: -70.5MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2022-07-12 19:26:29,842 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 257.9MB. Free memory is still 186.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 19:26:29,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 113.2MB. Free memory was 69.8MB in the beginning and 69.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.56ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 76.1MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.24ms. Allocated memory is still 113.2MB. Free memory was 76.1MB in the beginning and 69.6MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.27ms. Allocated memory is still 113.2MB. Free memory was 69.6MB in the beginning and 65.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 871.37ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 65.8MB in the beginning and 116.0MB in the end (delta: -50.2MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14410.49ms. Allocated memory was 146.8MB in the beginning and 257.9MB in the end (delta: 111.1MB). Free memory was 116.0MB in the beginning and 186.5MB in the end (delta: -70.5MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 257.9MB. Free memory is still 186.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L705] CALL _BLAST_init() [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=-6, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-4, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=-6, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-4, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=-6, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-4, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=-6, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-4, UNLOADED=0] [L157] return (259); VAL [\old(DisketteExtension)=0, \old(Irp)=0, \old(myStatus)=-1073741637, \old(PagingReferenceCount)=1, \old(pended)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=-6, DisketteExtension__PoweringDown=-5, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=-4, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(DeviceObject)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1094] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND FALSE !(disketteExtension__FloppyThread != 0) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=7, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] RET, EXPR FloppyPnp(devobj, pirp) [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=-1, tmp_ndt_2=-2, tmp_ndt_3=-3, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 667]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 320 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 53, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12339 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12030 mSDsluCounter, 69637 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49814 mSDsCounter, 2009 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18037 IncrementalHoareTripleChecker+Invalid, 20046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2009 mSolverCounterUnsat, 19823 mSDtfsCounter, 18037 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 545 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=734occurred in iteration=21, InterpolantAutomatonStates: 364, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 52 MinimizatonAttempts, 1324 StatesRemovedByMinimization, 49 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2242 NumberOfCodeBlocks, 2242 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 2117 ConstructedInterpolants, 0 QuantifiedInterpolants, 5060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 52 InterpolantComputations, 52 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 [2022-07-12 19:26:29,874 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 ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -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 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 19:26:31,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 19:26:31,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 19:26:31,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 19:26:31,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 19:26:31,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 19:26:31,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 19:26:31,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 19:26:31,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 19:26:31,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 19:26:31,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 19:26:31,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 19:26:31,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 19:26:31,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 19:26:31,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 19:26:31,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 19:26:31,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 19:26:31,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 19:26:31,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 19:26:31,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 19:26:31,612 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 19:26:31,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 19:26:31,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 19:26:31,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 19:26:31,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 19:26:31,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 19:26:31,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 19:26:31,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 19:26:31,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 19:26:31,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 19:26:31,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 19:26:31,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 19:26:31,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 19:26:31,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 19:26:31,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 19:26:31,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 19:26:31,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 19:26:31,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 19:26:31,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 19:26:31,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 19:26:31,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 19:26:31,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 19:26:31,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-12 19:26:31,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 19:26:31,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 19:26:31,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 19:26:31,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 19:26:31,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 19:26:31,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 19:26:31,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 19:26:31,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 19:26:31,662 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 19:26:31,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 19:26:31,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 19:26:31,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-12 19:26:31,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 19:26:31,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 19:26:31,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 19:26:31,664 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 19:26:31,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 19:26:31,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 19:26:31,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 19:26:31,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 19:26:31,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 19:26:31,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 19:26:31,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 19:26:31,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 19:26:31,666 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 19:26:31,666 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 19:26:31,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 19:26:31,666 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2022-07-12 19:26:31,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 19:26:31,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 19:26:31,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 19:26:31,922 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 19:26:31,923 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 19:26:31,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-07-12 19:26:31,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95cd9420b/97e7f0a3a1614cb09b53dea9e9de820c/FLAGd3466e66a [2022-07-12 19:26:32,405 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 19:26:32,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2022-07-12 19:26:32,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95cd9420b/97e7f0a3a1614cb09b53dea9e9de820c/FLAGd3466e66a [2022-07-12 19:26:32,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95cd9420b/97e7f0a3a1614cb09b53dea9e9de820c [2022-07-12 19:26:32,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 19:26:32,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 19:26:32,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 19:26:32,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 19:26:32,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 19:26:32,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3d0285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32, skipping insertion in model container [2022-07-12 19:26:32,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 19:26:32,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 19:26:32,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-07-12 19:26:32,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 19:26:32,760 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 19:26:32,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2022-07-12 19:26:32,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 19:26:32,875 INFO L208 MainTranslator]: Completed translation [2022-07-12 19:26:32,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32 WrapperNode [2022-07-12 19:26:32,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 19:26:32,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 19:26:32,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 19:26:32,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 19:26:32,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,947 INFO L137 Inliner]: procedures = 41, calls = 77, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 1193 [2022-07-12 19:26:32,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 19:26:32,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 19:26:32,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 19:26:32,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 19:26:32,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:32,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:33,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:33,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:33,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 19:26:33,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 19:26:33,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 19:26:33,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 19:26:33,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (1/1) ... [2022-07-12 19:26:33,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 19:26:33,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 19:26:33,052 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) [2022-07-12 19:26:33,066 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 [2022-07-12 19:26:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 19:26:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-07-12 19:26:33,081 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-07-12 19:26:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 19:26:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-07-12 19:26:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-07-12 19:26:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-12 19:26:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-12 19:26:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-12 19:26:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-12 19:26:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-12 19:26:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-12 19:26:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-12 19:26:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-12 19:26:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-07-12 19:26:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-07-12 19:26:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 19:26:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 19:26:33,239 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 19:26:33,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 19:26:33,244 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,296 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-12 19:26:33,296 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-12 19:26:33,296 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,303 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-12 19:26:33,303 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-12 19:26:33,313 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,318 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,328 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,329 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,333 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,334 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,337 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,742 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false; [2022-07-12 19:26:33,742 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2022-07-12 19:26:33,742 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume !false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-07-12 19:26:33,743 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2022-07-12 19:26:33,744 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !false; [2022-07-12 19:26:33,744 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##235: assume false; [2022-07-12 19:26:33,744 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-07-12 19:26:33,745 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,765 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-12 19:26:33,765 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-12 19:26:33,766 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,766 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,766 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-12 19:26:33,792 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-07-12 19:26:33,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-07-12 19:26:33,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-07-12 19:26:33,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-07-12 19:26:33,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-07-12 19:26:33,793 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-07-12 19:26:33,817 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 19:26:33,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 19:26:33,823 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 19:26:33,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:33 BoogieIcfgContainer [2022-07-12 19:26:33,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 19:26:33,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 19:26:33,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 19:26:33,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 19:26:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:26:32" (1/3) ... [2022-07-12 19:26:33,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2bc76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:33, skipping insertion in model container [2022-07-12 19:26:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:32" (2/3) ... [2022-07-12 19:26:33,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2bc76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:33, skipping insertion in model container [2022-07-12 19:26:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:33" (3/3) ... [2022-07-12 19:26:33,830 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2022-07-12 19:26:33,839 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 19:26:33,839 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 19:26:33,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 19:26:33,889 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@45b4d1f8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@773ff1a0 [2022-07-12 19:26:33,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 19:26:33,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) [2022-07-12 19:26:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 19:26:33,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:33,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:33,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:33,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:33,899 INFO L85 PathProgramCache]: Analyzing trace with hash -207662659, now seen corresponding path program 1 times [2022-07-12 19:26:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:33,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959532483] [2022-07-12 19:26:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:33,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:33,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:33,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:33,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 19:26:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:34,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:34,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:34,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:34,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959532483] [2022-07-12 19:26:34,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959532483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:34,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:34,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:34,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035924504] [2022-07-12 19:26:34,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:34,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:34,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:34,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:34,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:34,139 INFO L87 Difference]: Start difference. First operand has 320 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 286 states have internal predecessors, (395), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 45 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:34,233 INFO L93 Difference]: Finished difference Result 318 states and 469 transitions. [2022-07-12 19:26:34,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-12 19:26:34,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:34,250 INFO L225 Difference]: With dead ends: 318 [2022-07-12 19:26:34,250 INFO L226 Difference]: Without dead ends: 316 [2022-07-12 19:26:34,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:34,256 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 262 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:34,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 631 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-12 19:26:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-07-12 19:26:34,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 257 states have (on average 1.5058365758754864) internal successors, (387), 282 states have internal predecessors, (387), 51 states have call successors, (51), 7 states have call predecessors, (51), 6 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-07-12 19:26:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 467 transitions. [2022-07-12 19:26:34,313 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 467 transitions. Word has length 8 [2022-07-12 19:26:34,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:34,314 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 467 transitions. [2022-07-12 19:26:34,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 467 transitions. [2022-07-12 19:26:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-12 19:26:34,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:34,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:34,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:34,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:34,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:34,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash -922150621, now seen corresponding path program 1 times [2022-07-12 19:26:34,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:34,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390952326] [2022-07-12 19:26:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:34,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:34,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:34,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:34,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 19:26:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:34,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 19:26:34,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:34,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:34,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:34,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390952326] [2022-07-12 19:26:34,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390952326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:34,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:34,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:34,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443178015] [2022-07-12 19:26:34,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:34,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:34,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:34,694 INFO L87 Difference]: Start difference. First operand 316 states and 467 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:34,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:34,923 INFO L93 Difference]: Finished difference Result 440 states and 643 transitions. [2022-07-12 19:26:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:34,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-12 19:26:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:34,925 INFO L225 Difference]: With dead ends: 440 [2022-07-12 19:26:34,925 INFO L226 Difference]: Without dead ends: 440 [2022-07-12 19:26:34,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:34,926 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 617 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:34,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 720 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-07-12 19:26:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 418. [2022-07-12 19:26:34,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 358 states have (on average 1.4245810055865922) internal successors, (510), 363 states have internal predecessors, (510), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2022-07-12 19:26:34,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 611 transitions. [2022-07-12 19:26:34,964 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 611 transitions. Word has length 16 [2022-07-12 19:26:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:34,965 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 611 transitions. [2022-07-12 19:26:34,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 611 transitions. [2022-07-12 19:26:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-12 19:26:34,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:34,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:34,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:35,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:35,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:35,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:35,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851736, now seen corresponding path program 1 times [2022-07-12 19:26:35,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:35,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18443690] [2022-07-12 19:26:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:35,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:35,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:35,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:35,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 19:26:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:35,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:35,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:35,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:35,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:35,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18443690] [2022-07-12 19:26:35,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18443690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:35,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:35,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 19:26:35,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010816227] [2022-07-12 19:26:35,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:35,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:35,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:35,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:35,297 INFO L87 Difference]: Start difference. First operand 418 states and 611 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:35,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:35,338 INFO L93 Difference]: Finished difference Result 417 states and 610 transitions. [2022-07-12 19:26:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:35,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-12 19:26:35,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:35,341 INFO L225 Difference]: With dead ends: 417 [2022-07-12 19:26:35,342 INFO L226 Difference]: Without dead ends: 413 [2022-07-12 19:26:35,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:35,344 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 272 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:35,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 544 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-12 19:26:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-07-12 19:26:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 354 states have (on average 1.4039548022598871) internal successors, (497), 358 states have internal predecessors, (497), 49 states have call successors, (49), 11 states have call predecessors, (49), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2022-07-12 19:26:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 598 transitions. [2022-07-12 19:26:35,362 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 598 transitions. Word has length 14 [2022-07-12 19:26:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:35,362 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 598 transitions. [2022-07-12 19:26:35,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:35,362 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 598 transitions. [2022-07-12 19:26:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 19:26:35,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:35,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:35,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:35,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:35,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:35,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:35,571 INFO L85 PathProgramCache]: Analyzing trace with hash -866854925, now seen corresponding path program 1 times [2022-07-12 19:26:35,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:35,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096718498] [2022-07-12 19:26:35,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:35,571 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:35,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:35,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:35,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 19:26:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:35,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:35,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:35,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:35,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:35,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096718498] [2022-07-12 19:26:35,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096718498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:35,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:35,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:35,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131316475] [2022-07-12 19:26:35,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:35,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:35,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:35,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:35,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:35,718 INFO L87 Difference]: Start difference. First operand 413 states and 598 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:35,744 INFO L93 Difference]: Finished difference Result 499 states and 706 transitions. [2022-07-12 19:26:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:35,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-12 19:26:35,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:35,747 INFO L225 Difference]: With dead ends: 499 [2022-07-12 19:26:35,747 INFO L226 Difference]: Without dead ends: 499 [2022-07-12 19:26:35,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:35,750 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 407 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:35,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 545 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:35,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-07-12 19:26:35,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 467. [2022-07-12 19:26:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.399002493765586) internal successors, (561), 412 states have internal predecessors, (561), 51 states have call successors, (51), 14 states have call predecessors, (51), 14 states have return successors, (59), 43 states have call predecessors, (59), 41 states have call successors, (59) [2022-07-12 19:26:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 671 transitions. [2022-07-12 19:26:35,761 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 671 transitions. Word has length 19 [2022-07-12 19:26:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:35,761 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 671 transitions. [2022-07-12 19:26:35,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:35,761 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 671 transitions. [2022-07-12 19:26:35,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-12 19:26:35,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:35,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:35,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:35,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:35,969 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:35,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:35,969 INFO L85 PathProgramCache]: Analyzing trace with hash 122564240, now seen corresponding path program 1 times [2022-07-12 19:26:35,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:35,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457249860] [2022-07-12 19:26:35,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:35,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:35,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:35,971 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:35,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 19:26:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:36,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:36,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:36,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:36,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:36,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457249860] [2022-07-12 19:26:36,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457249860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:36,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:36,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790904022] [2022-07-12 19:26:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:36,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:36,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:36,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:36,116 INFO L87 Difference]: Start difference. First operand 467 states and 671 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:36,138 INFO L93 Difference]: Finished difference Result 646 states and 916 transitions. [2022-07-12 19:26:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-12 19:26:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:36,140 INFO L225 Difference]: With dead ends: 646 [2022-07-12 19:26:36,140 INFO L226 Difference]: Without dead ends: 646 [2022-07-12 19:26:36,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:36,141 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 397 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:36,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 658 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:36,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-07-12 19:26:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 621. [2022-07-12 19:26:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 538 states have (on average 1.3866171003717471) internal successors, (746), 546 states have internal predecessors, (746), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-12 19:26:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 887 transitions. [2022-07-12 19:26:36,165 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 887 transitions. Word has length 22 [2022-07-12 19:26:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:36,165 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 887 transitions. [2022-07-12 19:26:36,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 887 transitions. [2022-07-12 19:26:36,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 19:26:36,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:36,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:36,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:36,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:36,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:36,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:36,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1248863601, now seen corresponding path program 1 times [2022-07-12 19:26:36,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:36,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838608938] [2022-07-12 19:26:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:36,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:36,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:36,377 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:36,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 19:26:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:36,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:36,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:36,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:36,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:36,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838608938] [2022-07-12 19:26:36,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838608938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:36,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:36,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:36,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174541520] [2022-07-12 19:26:36,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:36,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:36,479 INFO L87 Difference]: Start difference. First operand 621 states and 887 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:36,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:36,532 INFO L93 Difference]: Finished difference Result 654 states and 928 transitions. [2022-07-12 19:26:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-07-12 19:26:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:36,535 INFO L225 Difference]: With dead ends: 654 [2022-07-12 19:26:36,535 INFO L226 Difference]: Without dead ends: 654 [2022-07-12 19:26:36,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:36,535 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 41 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:36,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 789 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:36,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-07-12 19:26:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 650. [2022-07-12 19:26:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 567 states have (on average 1.382716049382716) internal successors, (784), 573 states have internal predecessors, (784), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-12 19:26:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 925 transitions. [2022-07-12 19:26:36,547 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 925 transitions. Word has length 29 [2022-07-12 19:26:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:36,547 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 925 transitions. [2022-07-12 19:26:36,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 925 transitions. [2022-07-12 19:26:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 19:26:36,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:36,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:36,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-12 19:26:36,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:36,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1346397447, now seen corresponding path program 1 times [2022-07-12 19:26:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:36,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460632120] [2022-07-12 19:26:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:36,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:36,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:36,757 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:36,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 19:26:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:36,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 19:26:36,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:36,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:36,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:36,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460632120] [2022-07-12 19:26:36,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460632120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:36,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:36,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:36,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584548870] [2022-07-12 19:26:36,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:36,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:36,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:36,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:36,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:36,922 INFO L87 Difference]: Start difference. First operand 650 states and 925 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:37,078 INFO L93 Difference]: Finished difference Result 662 states and 941 transitions. [2022-07-12 19:26:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:37,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-12 19:26:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:37,082 INFO L225 Difference]: With dead ends: 662 [2022-07-12 19:26:37,082 INFO L226 Difference]: Without dead ends: 662 [2022-07-12 19:26:37,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:37,082 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 440 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:37,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 717 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-07-12 19:26:37,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 661. [2022-07-12 19:26:37,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 578 states have (on average 1.3806228373702423) internal successors, (798), 583 states have internal predecessors, (798), 61 states have call successors, (61), 23 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-12 19:26:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 939 transitions. [2022-07-12 19:26:37,094 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 939 transitions. Word has length 28 [2022-07-12 19:26:37,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:37,094 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 939 transitions. [2022-07-12 19:26:37,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 939 transitions. [2022-07-12 19:26:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:37,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:37,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:37,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:37,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:37,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:37,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:37,306 INFO L85 PathProgramCache]: Analyzing trace with hash 392976058, now seen corresponding path program 1 times [2022-07-12 19:26:37,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:37,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032861572] [2022-07-12 19:26:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:37,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:37,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:37,307 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:37,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 19:26:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:37,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:37,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:37,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:37,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:37,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032861572] [2022-07-12 19:26:37,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032861572] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:37,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:37,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:37,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028528919] [2022-07-12 19:26:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:37,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:37,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:37,493 INFO L87 Difference]: Start difference. First operand 661 states and 939 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:37,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:37,663 INFO L93 Difference]: Finished difference Result 665 states and 940 transitions. [2022-07-12 19:26:37,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:37,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-07-12 19:26:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:37,666 INFO L225 Difference]: With dead ends: 665 [2022-07-12 19:26:37,666 INFO L226 Difference]: Without dead ends: 665 [2022-07-12 19:26:37,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:37,666 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 442 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:37,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1035 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:37,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-07-12 19:26:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 661. [2022-07-12 19:26:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 578 states have (on average 1.3771626297577855) internal successors, (796), 583 states have internal predecessors, (796), 61 states have call successors, (61), 23 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-12 19:26:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 937 transitions. [2022-07-12 19:26:37,677 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 937 transitions. Word has length 30 [2022-07-12 19:26:37,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:37,678 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 937 transitions. [2022-07-12 19:26:37,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 937 transitions. [2022-07-12 19:26:37,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:37,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:37,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:37,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:37,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:37,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1591455653, now seen corresponding path program 1 times [2022-07-12 19:26:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:37,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505899891] [2022-07-12 19:26:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:37,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:37,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:37,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:37,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 19:26:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:37,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:37,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:38,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:38,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:38,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505899891] [2022-07-12 19:26:38,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505899891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:38,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:38,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:38,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348042765] [2022-07-12 19:26:38,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:38,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:38,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:38,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:38,072 INFO L87 Difference]: Start difference. First operand 661 states and 937 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:38,215 INFO L93 Difference]: Finished difference Result 665 states and 938 transitions. [2022-07-12 19:26:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:38,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-07-12 19:26:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:38,217 INFO L225 Difference]: With dead ends: 665 [2022-07-12 19:26:38,217 INFO L226 Difference]: Without dead ends: 665 [2022-07-12 19:26:38,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:38,218 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 496 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:38,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 732 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-07-12 19:26:38,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 661. [2022-07-12 19:26:38,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 578 states have (on average 1.3737024221453287) internal successors, (794), 583 states have internal predecessors, (794), 61 states have call successors, (61), 23 states have call predecessors, (61), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-12 19:26:38,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 935 transitions. [2022-07-12 19:26:38,228 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 935 transitions. Word has length 31 [2022-07-12 19:26:38,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:38,229 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 935 transitions. [2022-07-12 19:26:38,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:38,229 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 935 transitions. [2022-07-12 19:26:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:26:38,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:38,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:38,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:38,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:38,436 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash -565183302, now seen corresponding path program 1 times [2022-07-12 19:26:38,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:38,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165357074] [2022-07-12 19:26:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:38,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:38,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:38,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:38,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 19:26:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:38,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:38,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:38,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:38,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:38,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165357074] [2022-07-12 19:26:38,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165357074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:38,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:38,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:38,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924021592] [2022-07-12 19:26:38,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:38,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:38,551 INFO L87 Difference]: Start difference. First operand 661 states and 935 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:38,581 INFO L93 Difference]: Finished difference Result 671 states and 944 transitions. [2022-07-12 19:26:38,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:38,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-12 19:26:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:38,584 INFO L225 Difference]: With dead ends: 671 [2022-07-12 19:26:38,584 INFO L226 Difference]: Without dead ends: 659 [2022-07-12 19:26:38,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:38,584 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 245 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:38,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1439 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:38,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-07-12 19:26:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2022-07-12 19:26:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 577 states have (on average 1.3726169844020797) internal successors, (792), 582 states have internal predecessors, (792), 60 states have call successors, (60), 23 states have call predecessors, (60), 21 states have return successors, (79), 54 states have call predecessors, (79), 52 states have call successors, (79) [2022-07-12 19:26:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 931 transitions. [2022-07-12 19:26:38,597 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 931 transitions. Word has length 33 [2022-07-12 19:26:38,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:38,597 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 931 transitions. [2022-07-12 19:26:38,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:38,597 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 931 transitions. [2022-07-12 19:26:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 19:26:38,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:38,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:38,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:38,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:38,805 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2035129213, now seen corresponding path program 1 times [2022-07-12 19:26:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:38,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188445659] [2022-07-12 19:26:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:38,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:38,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:38,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:38,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 19:26:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:38,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:38,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:38,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:38,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:38,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188445659] [2022-07-12 19:26:38,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188445659] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:38,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:38,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770282376] [2022-07-12 19:26:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:38,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:38,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:38,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:38,923 INFO L87 Difference]: Start difference. First operand 659 states and 931 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:38,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:38,957 INFO L93 Difference]: Finished difference Result 669 states and 940 transitions. [2022-07-12 19:26:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:38,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-12 19:26:38,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:38,960 INFO L225 Difference]: With dead ends: 669 [2022-07-12 19:26:38,960 INFO L226 Difference]: Without dead ends: 652 [2022-07-12 19:26:38,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:38,960 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 244 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:38,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1406 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:38,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-07-12 19:26:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2022-07-12 19:26:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 573 states have (on average 1.3734729493891797) internal successors, (787), 578 states have internal predecessors, (787), 58 states have call successors, (58), 22 states have call predecessors, (58), 20 states have return successors, (77), 52 states have call predecessors, (77), 50 states have call successors, (77) [2022-07-12 19:26:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 922 transitions. [2022-07-12 19:26:38,971 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 922 transitions. Word has length 32 [2022-07-12 19:26:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:38,971 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 922 transitions. [2022-07-12 19:26:38,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 19:26:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 922 transitions. [2022-07-12 19:26:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:38,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:38,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:38,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:39,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:39,178 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:39,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:39,179 INFO L85 PathProgramCache]: Analyzing trace with hash -594269944, now seen corresponding path program 1 times [2022-07-12 19:26:39,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:39,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446337848] [2022-07-12 19:26:39,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:39,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:39,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:39,180 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:39,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 19:26:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:39,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:39,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:39,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:39,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:39,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446337848] [2022-07-12 19:26:39,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446337848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:39,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:39,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:39,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892049860] [2022-07-12 19:26:39,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:39,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:39,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:39,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:39,296 INFO L87 Difference]: Start difference. First operand 652 states and 922 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:39,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:39,313 INFO L93 Difference]: Finished difference Result 656 states and 918 transitions. [2022-07-12 19:26:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:39,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-12 19:26:39,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:39,316 INFO L225 Difference]: With dead ends: 656 [2022-07-12 19:26:39,316 INFO L226 Difference]: Without dead ends: 641 [2022-07-12 19:26:39,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:39,317 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 87 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:39,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 882 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-07-12 19:26:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 636. [2022-07-12 19:26:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 558 states have (on average 1.3655913978494623) internal successors, (762), 563 states have internal predecessors, (762), 58 states have call successors, (58), 22 states have call predecessors, (58), 19 states have return successors, (76), 51 states have call predecessors, (76), 50 states have call successors, (76) [2022-07-12 19:26:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 896 transitions. [2022-07-12 19:26:39,332 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 896 transitions. Word has length 30 [2022-07-12 19:26:39,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:39,332 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 896 transitions. [2022-07-12 19:26:39,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:39,332 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 896 transitions. [2022-07-12 19:26:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:39,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:39,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:39,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:39,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:39,541 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:39,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:39,541 INFO L85 PathProgramCache]: Analyzing trace with hash -444205741, now seen corresponding path program 1 times [2022-07-12 19:26:39,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:39,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762246191] [2022-07-12 19:26:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:39,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:39,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:39,542 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:39,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 19:26:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:39,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:39,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:39,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:39,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:39,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762246191] [2022-07-12 19:26:39,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762246191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:39,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:39,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:39,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181755188] [2022-07-12 19:26:39,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:39,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:39,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:39,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:39,652 INFO L87 Difference]: Start difference. First operand 636 states and 896 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:39,684 INFO L93 Difference]: Finished difference Result 652 states and 913 transitions. [2022-07-12 19:26:39,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:39,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-12 19:26:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:39,686 INFO L225 Difference]: With dead ends: 652 [2022-07-12 19:26:39,686 INFO L226 Difference]: Without dead ends: 652 [2022-07-12 19:26:39,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:39,687 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 27 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:39,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1222 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-07-12 19:26:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 638. [2022-07-12 19:26:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 560 states have (on average 1.3642857142857143) internal successors, (764), 565 states have internal predecessors, (764), 58 states have call successors, (58), 22 states have call predecessors, (58), 19 states have return successors, (76), 51 states have call predecessors, (76), 50 states have call successors, (76) [2022-07-12 19:26:39,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 898 transitions. [2022-07-12 19:26:39,702 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 898 transitions. Word has length 30 [2022-07-12 19:26:39,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:39,702 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 898 transitions. [2022-07-12 19:26:39,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:39,702 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 898 transitions. [2022-07-12 19:26:39,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:39,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:39,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:39,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:39,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:39,910 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:39,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:39,910 INFO L85 PathProgramCache]: Analyzing trace with hash -146055581, now seen corresponding path program 1 times [2022-07-12 19:26:39,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:39,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065085273] [2022-07-12 19:26:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:39,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:39,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:39,911 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:39,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 19:26:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:39,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:39,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:40,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:40,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:40,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065085273] [2022-07-12 19:26:40,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065085273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:40,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:40,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:40,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12075816] [2022-07-12 19:26:40,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:40,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:40,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:40,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:40,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:40,007 INFO L87 Difference]: Start difference. First operand 638 states and 898 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:40,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:40,043 INFO L93 Difference]: Finished difference Result 654 states and 915 transitions. [2022-07-12 19:26:40,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:40,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-12 19:26:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:40,045 INFO L225 Difference]: With dead ends: 654 [2022-07-12 19:26:40,046 INFO L226 Difference]: Without dead ends: 654 [2022-07-12 19:26:40,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:40,046 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 27 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:40,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1227 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-07-12 19:26:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 638. [2022-07-12 19:26:40,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 560 states have (on average 1.3642857142857143) internal successors, (764), 565 states have internal predecessors, (764), 58 states have call successors, (58), 22 states have call predecessors, (58), 19 states have return successors, (76), 51 states have call predecessors, (76), 50 states have call successors, (76) [2022-07-12 19:26:40,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 898 transitions. [2022-07-12 19:26:40,057 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 898 transitions. Word has length 31 [2022-07-12 19:26:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:40,057 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 898 transitions. [2022-07-12 19:26:40,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 898 transitions. [2022-07-12 19:26:40,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:40,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:40,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:40,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:40,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:40,265 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:40,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:40,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1157172831, now seen corresponding path program 1 times [2022-07-12 19:26:40,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:40,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338577925] [2022-07-12 19:26:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:40,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:40,267 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:40,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 19:26:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:40,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:40,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:40,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:40,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:40,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:40,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338577925] [2022-07-12 19:26:40,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338577925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:40,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:40,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:40,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780095458] [2022-07-12 19:26:40,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:40,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:40,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:40,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:40,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:40,365 INFO L87 Difference]: Start difference. First operand 638 states and 898 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:40,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:40,407 INFO L93 Difference]: Finished difference Result 654 states and 915 transitions. [2022-07-12 19:26:40,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:40,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-12 19:26:40,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:40,409 INFO L225 Difference]: With dead ends: 654 [2022-07-12 19:26:40,409 INFO L226 Difference]: Without dead ends: 654 [2022-07-12 19:26:40,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:40,411 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 28 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:40,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1226 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:40,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-07-12 19:26:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 638. [2022-07-12 19:26:40,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 560 states have (on average 1.3642857142857143) internal successors, (764), 565 states have internal predecessors, (764), 58 states have call successors, (58), 22 states have call predecessors, (58), 19 states have return successors, (76), 51 states have call predecessors, (76), 50 states have call successors, (76) [2022-07-12 19:26:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 898 transitions. [2022-07-12 19:26:40,421 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 898 transitions. Word has length 31 [2022-07-12 19:26:40,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:40,422 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 898 transitions. [2022-07-12 19:26:40,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 898 transitions. [2022-07-12 19:26:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 19:26:40,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:40,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:40,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:40,634 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:40,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash -984672399, now seen corresponding path program 1 times [2022-07-12 19:26:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:40,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297314072] [2022-07-12 19:26:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:40,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:40,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:40,638 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:40,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 19:26:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:40,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 19:26:40,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:40,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:40,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:40,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:40,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297314072] [2022-07-12 19:26:40,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297314072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:40,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:40,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:40,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530987219] [2022-07-12 19:26:40,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:40,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:40,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:40,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:40,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:40,765 INFO L87 Difference]: Start difference. First operand 638 states and 898 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:40,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:40,785 INFO L93 Difference]: Finished difference Result 658 states and 921 transitions. [2022-07-12 19:26:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:40,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-12 19:26:40,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:40,787 INFO L225 Difference]: With dead ends: 658 [2022-07-12 19:26:40,787 INFO L226 Difference]: Without dead ends: 658 [2022-07-12 19:26:40,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:40,788 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 16 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:40,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1683 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-12 19:26:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 642. [2022-07-12 19:26:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 563 states have (on average 1.3623445825932505) internal successors, (767), 568 states have internal predecessors, (767), 58 states have call successors, (58), 22 states have call predecessors, (58), 20 states have return successors, (78), 52 states have call predecessors, (78), 50 states have call successors, (78) [2022-07-12 19:26:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 903 transitions. [2022-07-12 19:26:40,798 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 903 transitions. Word has length 34 [2022-07-12 19:26:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:40,798 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 903 transitions. [2022-07-12 19:26:40,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 903 transitions. [2022-07-12 19:26:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:26:40,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:40,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:40,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:41,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:41,007 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:41,007 INFO L85 PathProgramCache]: Analyzing trace with hash -703098920, now seen corresponding path program 1 times [2022-07-12 19:26:41,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:41,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664436090] [2022-07-12 19:26:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:41,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:41,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:41,009 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:41,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 19:26:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:41,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:41,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:41,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:41,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:41,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:41,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664436090] [2022-07-12 19:26:41,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664436090] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:41,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:41,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:41,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741007759] [2022-07-12 19:26:41,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:41,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:41,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:41,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:41,121 INFO L87 Difference]: Start difference. First operand 642 states and 903 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:41,143 INFO L93 Difference]: Finished difference Result 653 states and 913 transitions. [2022-07-12 19:26:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:41,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-07-12 19:26:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:41,145 INFO L225 Difference]: With dead ends: 653 [2022-07-12 19:26:41,145 INFO L226 Difference]: Without dead ends: 640 [2022-07-12 19:26:41,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:41,146 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 10 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:41,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1218 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:41,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-07-12 19:26:41,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2022-07-12 19:26:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 562 states have (on average 1.3612099644128113) internal successors, (765), 567 states have internal predecessors, (765), 57 states have call successors, (57), 22 states have call predecessors, (57), 20 states have return successors, (77), 51 states have call predecessors, (77), 49 states have call successors, (77) [2022-07-12 19:26:41,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 899 transitions. [2022-07-12 19:26:41,156 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 899 transitions. Word has length 33 [2022-07-12 19:26:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:41,156 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 899 transitions. [2022-07-12 19:26:41,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:41,156 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 899 transitions. [2022-07-12 19:26:41,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 19:26:41,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:41,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:41,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:41,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:41,364 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:41,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:41,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1034428387, now seen corresponding path program 1 times [2022-07-12 19:26:41,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:41,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047287312] [2022-07-12 19:26:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:41,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:41,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:41,366 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:41,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 19:26:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:41,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:41,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:41,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:41,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:41,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047287312] [2022-07-12 19:26:41,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047287312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:41,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:41,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:41,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334632984] [2022-07-12 19:26:41,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:41,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:41,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:41,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:41,473 INFO L87 Difference]: Start difference. First operand 640 states and 899 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:41,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:41,507 INFO L93 Difference]: Finished difference Result 651 states and 909 transitions. [2022-07-12 19:26:41,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:41,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-12 19:26:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:41,509 INFO L225 Difference]: With dead ends: 651 [2022-07-12 19:26:41,509 INFO L226 Difference]: Without dead ends: 638 [2022-07-12 19:26:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:41,510 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 10 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:41,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1208 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-07-12 19:26:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2022-07-12 19:26:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 561 states have (on average 1.3600713012477719) internal successors, (763), 566 states have internal predecessors, (763), 56 states have call successors, (56), 22 states have call predecessors, (56), 20 states have return successors, (76), 50 states have call predecessors, (76), 48 states have call successors, (76) [2022-07-12 19:26:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 895 transitions. [2022-07-12 19:26:41,531 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 895 transitions. Word has length 35 [2022-07-12 19:26:41,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:41,531 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 895 transitions. [2022-07-12 19:26:41,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 895 transitions. [2022-07-12 19:26:41,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 19:26:41,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:41,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:41,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:41,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:41,739 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:41,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 108213321, now seen corresponding path program 1 times [2022-07-12 19:26:41,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:41,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753034676] [2022-07-12 19:26:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:41,740 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:41,741 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:41,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 19:26:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:41,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:41,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:41,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:41,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:41,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753034676] [2022-07-12 19:26:41,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753034676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:41,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:41,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:41,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184709575] [2022-07-12 19:26:41,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:41,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:41,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:41,971 INFO L87 Difference]: Start difference. First operand 638 states and 895 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:42,178 INFO L93 Difference]: Finished difference Result 672 states and 926 transitions. [2022-07-12 19:26:42,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:42,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-12 19:26:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:42,181 INFO L225 Difference]: With dead ends: 672 [2022-07-12 19:26:42,181 INFO L226 Difference]: Without dead ends: 672 [2022-07-12 19:26:42,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:42,182 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 670 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:42,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 657 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-07-12 19:26:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 635. [2022-07-12 19:26:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 558 states have (on average 1.3458781362007168) internal successors, (751), 563 states have internal predecessors, (751), 56 states have call successors, (56), 22 states have call predecessors, (56), 20 states have return successors, (76), 50 states have call predecessors, (76), 48 states have call successors, (76) [2022-07-12 19:26:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 883 transitions. [2022-07-12 19:26:42,209 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 883 transitions. Word has length 37 [2022-07-12 19:26:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:42,209 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 883 transitions. [2022-07-12 19:26:42,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:42,210 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 883 transitions. [2022-07-12 19:26:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 19:26:42,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:42,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:42,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:42,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:42,427 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:42,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:42,428 INFO L85 PathProgramCache]: Analyzing trace with hash 447341985, now seen corresponding path program 1 times [2022-07-12 19:26:42,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:42,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237894667] [2022-07-12 19:26:42,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:42,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:42,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:42,429 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:42,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 19:26:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:42,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:42,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:42,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:42,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:42,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237894667] [2022-07-12 19:26:42,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237894667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:42,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:42,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:42,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932473126] [2022-07-12 19:26:42,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:42,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:42,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:42,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:42,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:42,534 INFO L87 Difference]: Start difference. First operand 635 states and 883 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:42,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:42,586 INFO L93 Difference]: Finished difference Result 643 states and 894 transitions. [2022-07-12 19:26:42,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:42,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-12 19:26:42,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:42,590 INFO L225 Difference]: With dead ends: 643 [2022-07-12 19:26:42,590 INFO L226 Difference]: Without dead ends: 643 [2022-07-12 19:26:42,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:42,593 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 5 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:42,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 772 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-07-12 19:26:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2022-07-12 19:26:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 566 states have (on average 1.3462897526501767) internal successors, (762), 571 states have internal predecessors, (762), 56 states have call successors, (56), 22 states have call predecessors, (56), 20 states have return successors, (76), 50 states have call predecessors, (76), 48 states have call successors, (76) [2022-07-12 19:26:42,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 894 transitions. [2022-07-12 19:26:42,612 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 894 transitions. Word has length 37 [2022-07-12 19:26:42,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:42,612 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 894 transitions. [2022-07-12 19:26:42,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:42,612 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 894 transitions. [2022-07-12 19:26:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 19:26:42,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:42,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:42,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:42,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:42,833 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1984798963, now seen corresponding path program 1 times [2022-07-12 19:26:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:42,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485498108] [2022-07-12 19:26:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:42,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:42,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:42,834 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:42,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-12 19:26:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:42,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:42,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:42,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:42,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:42,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485498108] [2022-07-12 19:26:42,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485498108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:42,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:42,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590337833] [2022-07-12 19:26:42,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:42,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:42,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:42,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:42,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:42,948 INFO L87 Difference]: Start difference. First operand 643 states and 894 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:43,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:43,001 INFO L93 Difference]: Finished difference Result 658 states and 909 transitions. [2022-07-12 19:26:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:43,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-12 19:26:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:43,003 INFO L225 Difference]: With dead ends: 658 [2022-07-12 19:26:43,003 INFO L226 Difference]: Without dead ends: 643 [2022-07-12 19:26:43,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:43,003 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 21 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:43,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1583 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-07-12 19:26:43,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2022-07-12 19:26:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 566 states have (on average 1.3303886925795052) internal successors, (753), 571 states have internal predecessors, (753), 56 states have call successors, (56), 22 states have call predecessors, (56), 20 states have return successors, (76), 50 states have call predecessors, (76), 48 states have call successors, (76) [2022-07-12 19:26:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 885 transitions. [2022-07-12 19:26:43,012 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 885 transitions. Word has length 38 [2022-07-12 19:26:43,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:43,012 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 885 transitions. [2022-07-12 19:26:43,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 885 transitions. [2022-07-12 19:26:43,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 19:26:43,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:43,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:43,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:43,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:43,220 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash -615689806, now seen corresponding path program 1 times [2022-07-12 19:26:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:43,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605864186] [2022-07-12 19:26:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:43,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:43,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:43,222 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:43,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-12 19:26:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:43,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:43,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:43,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:43,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:43,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605864186] [2022-07-12 19:26:43,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605864186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:43,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:43,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:43,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412611840] [2022-07-12 19:26:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:43,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:43,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:43,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:43,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:43,418 INFO L87 Difference]: Start difference. First operand 643 states and 885 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:43,756 INFO L93 Difference]: Finished difference Result 672 states and 921 transitions. [2022-07-12 19:26:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-12 19:26:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:43,759 INFO L225 Difference]: With dead ends: 672 [2022-07-12 19:26:43,759 INFO L226 Difference]: Without dead ends: 672 [2022-07-12 19:26:43,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:43,759 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 492 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:43,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1169 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:43,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-07-12 19:26:43,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 665. [2022-07-12 19:26:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 583 states have (on average 1.3224699828473414) internal successors, (771), 593 states have internal predecessors, (771), 56 states have call successors, (56), 22 states have call predecessors, (56), 25 states have return successors, (85), 50 states have call predecessors, (85), 48 states have call successors, (85) [2022-07-12 19:26:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 912 transitions. [2022-07-12 19:26:43,768 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 912 transitions. Word has length 38 [2022-07-12 19:26:43,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:43,769 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 912 transitions. [2022-07-12 19:26:43,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:43,769 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 912 transitions. [2022-07-12 19:26:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 19:26:43,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:43,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:43,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:43,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:43,971 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1498719409, now seen corresponding path program 1 times [2022-07-12 19:26:43,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444481854] [2022-07-12 19:26:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:43,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:43,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:43,974 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:43,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-12 19:26:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:44,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:44,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:44,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:44,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:44,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444481854] [2022-07-12 19:26:44,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444481854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:44,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:44,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:44,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702164219] [2022-07-12 19:26:44,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:44,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:44,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:44,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:44,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:44,086 INFO L87 Difference]: Start difference. First operand 665 states and 912 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:44,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:44,098 INFO L93 Difference]: Finished difference Result 552 states and 730 transitions. [2022-07-12 19:26:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 19:26:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:44,100 INFO L225 Difference]: With dead ends: 552 [2022-07-12 19:26:44,100 INFO L226 Difference]: Without dead ends: 552 [2022-07-12 19:26:44,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:44,101 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 152 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:44,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 729 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-07-12 19:26:44,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 517. [2022-07-12 19:26:44,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 453 states have (on average 1.304635761589404) internal successors, (591), 463 states have internal predecessors, (591), 43 states have call successors, (43), 17 states have call predecessors, (43), 20 states have return successors, (51), 37 states have call predecessors, (51), 35 states have call successors, (51) [2022-07-12 19:26:44,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 685 transitions. [2022-07-12 19:26:44,107 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 685 transitions. Word has length 40 [2022-07-12 19:26:44,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:44,108 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 685 transitions. [2022-07-12 19:26:44,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:44,108 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 685 transitions. [2022-07-12 19:26:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:44,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:44,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:44,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:44,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:44,317 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:44,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1374115068, now seen corresponding path program 1 times [2022-07-12 19:26:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:44,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004924745] [2022-07-12 19:26:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:44,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:44,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:44,319 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:44,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-12 19:26:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:44,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:44,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:44,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:44,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:44,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004924745] [2022-07-12 19:26:44,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004924745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:44,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:44,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:44,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368971492] [2022-07-12 19:26:44,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:44,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:44,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:44,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:44,447 INFO L87 Difference]: Start difference. First operand 517 states and 685 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:44,479 INFO L93 Difference]: Finished difference Result 528 states and 695 transitions. [2022-07-12 19:26:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:44,481 INFO L225 Difference]: With dead ends: 528 [2022-07-12 19:26:44,481 INFO L226 Difference]: Without dead ends: 509 [2022-07-12 19:26:44,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:44,482 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 33 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:44,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1946 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-07-12 19:26:44,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2022-07-12 19:26:44,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 446 states have (on average 1.3026905829596414) internal successors, (581), 456 states have internal predecessors, (581), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 36 states have call predecessors, (50), 34 states have call successors, (50) [2022-07-12 19:26:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 673 transitions. [2022-07-12 19:26:44,488 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 673 transitions. Word has length 39 [2022-07-12 19:26:44,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:44,488 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 673 transitions. [2022-07-12 19:26:44,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 673 transitions. [2022-07-12 19:26:44,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:44,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:44,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:44,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:44,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:44,696 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:44,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:44,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1222703619, now seen corresponding path program 1 times [2022-07-12 19:26:44,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:44,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688315182] [2022-07-12 19:26:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:44,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:44,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:44,698 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:44,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-07-12 19:26:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:44,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:44,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:44,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:44,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:44,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688315182] [2022-07-12 19:26:44,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688315182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:44,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:44,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660487038] [2022-07-12 19:26:44,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:44,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:44,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:44,816 INFO L87 Difference]: Start difference. First operand 509 states and 673 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:44,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:44,862 INFO L93 Difference]: Finished difference Result 524 states and 688 transitions. [2022-07-12 19:26:44,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:44,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:44,863 INFO L225 Difference]: With dead ends: 524 [2022-07-12 19:26:44,864 INFO L226 Difference]: Without dead ends: 509 [2022-07-12 19:26:44,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:44,867 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 21 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:44,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1510 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:44,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-07-12 19:26:44,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2022-07-12 19:26:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 446 states have (on average 1.295964125560538) internal successors, (578), 456 states have internal predecessors, (578), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 36 states have call predecessors, (50), 34 states have call successors, (50) [2022-07-12 19:26:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 670 transitions. [2022-07-12 19:26:44,887 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 670 transitions. Word has length 39 [2022-07-12 19:26:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:44,888 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 670 transitions. [2022-07-12 19:26:44,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 670 transitions. [2022-07-12 19:26:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:44,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:44,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:44,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:45,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:45,089 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1441558337, now seen corresponding path program 1 times [2022-07-12 19:26:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:45,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012385309] [2022-07-12 19:26:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:45,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:45,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:45,091 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:45,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-07-12 19:26:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:45,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:45,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:45,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:45,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:45,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012385309] [2022-07-12 19:26:45,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012385309] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:45,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:45,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:45,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252253849] [2022-07-12 19:26:45,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:45,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:45,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:45,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:45,208 INFO L87 Difference]: Start difference. First operand 509 states and 670 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:45,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:45,246 INFO L93 Difference]: Finished difference Result 522 states and 683 transitions. [2022-07-12 19:26:45,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:45,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:45,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:45,248 INFO L225 Difference]: With dead ends: 522 [2022-07-12 19:26:45,248 INFO L226 Difference]: Without dead ends: 501 [2022-07-12 19:26:45,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:45,248 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 237 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:45,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1249 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-07-12 19:26:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2022-07-12 19:26:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 438 states have (on average 1.2945205479452055) internal successors, (567), 448 states have internal predecessors, (567), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 36 states have call predecessors, (50), 34 states have call successors, (50) [2022-07-12 19:26:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 659 transitions. [2022-07-12 19:26:45,254 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 659 transitions. Word has length 39 [2022-07-12 19:26:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:45,255 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 659 transitions. [2022-07-12 19:26:45,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 659 transitions. [2022-07-12 19:26:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:45,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:45,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:45,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:45,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:45,463 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:45,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1087199807, now seen corresponding path program 1 times [2022-07-12 19:26:45,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:45,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552363227] [2022-07-12 19:26:45,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:45,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:45,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:45,480 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:45,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-07-12 19:26:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:45,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 19:26:45,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:45,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:45,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:45,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:45,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552363227] [2022-07-12 19:26:45,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552363227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:45,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:45,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:45,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071112436] [2022-07-12 19:26:45,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:45,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:45,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:45,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:45,602 INFO L87 Difference]: Start difference. First operand 501 states and 659 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:45,632 INFO L93 Difference]: Finished difference Result 518 states and 677 transitions. [2022-07-12 19:26:45,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:45,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-12 19:26:45,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:45,634 INFO L225 Difference]: With dead ends: 518 [2022-07-12 19:26:45,634 INFO L226 Difference]: Without dead ends: 518 [2022-07-12 19:26:45,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:45,635 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 27 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:45,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1868 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:45,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-07-12 19:26:45,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 504. [2022-07-12 19:26:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 441 states have (on average 1.2925170068027212) internal successors, (570), 450 states have internal predecessors, (570), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2022-07-12 19:26:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 662 transitions. [2022-07-12 19:26:45,641 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 662 transitions. Word has length 39 [2022-07-12 19:26:45,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:45,641 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 662 transitions. [2022-07-12 19:26:45,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 662 transitions. [2022-07-12 19:26:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 19:26:45,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:45,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:45,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:45,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:45,849 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1532469617, now seen corresponding path program 1 times [2022-07-12 19:26:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:45,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817192729] [2022-07-12 19:26:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:45,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:45,851 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:45,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-07-12 19:26:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:45,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:45,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:45,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:45,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:45,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817192729] [2022-07-12 19:26:45,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817192729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:45,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:45,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:45,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531108575] [2022-07-12 19:26:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:45,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:45,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:45,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:45,955 INFO L87 Difference]: Start difference. First operand 504 states and 662 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:45,972 INFO L93 Difference]: Finished difference Result 520 states and 679 transitions. [2022-07-12 19:26:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:45,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-07-12 19:26:45,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:45,973 INFO L225 Difference]: With dead ends: 520 [2022-07-12 19:26:45,973 INFO L226 Difference]: Without dead ends: 520 [2022-07-12 19:26:45,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:45,974 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 27 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:45,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1120 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-07-12 19:26:45,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 504. [2022-07-12 19:26:45,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 441 states have (on average 1.2925170068027212) internal successors, (570), 450 states have internal predecessors, (570), 42 states have call successors, (42), 17 states have call predecessors, (42), 20 states have return successors, (50), 37 states have call predecessors, (50), 34 states have call successors, (50) [2022-07-12 19:26:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 662 transitions. [2022-07-12 19:26:45,980 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 662 transitions. Word has length 39 [2022-07-12 19:26:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:45,980 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 662 transitions. [2022-07-12 19:26:45,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 662 transitions. [2022-07-12 19:26:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 19:26:45,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:45,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:45,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:46,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:46,188 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash 402911191, now seen corresponding path program 1 times [2022-07-12 19:26:46,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:46,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124574307] [2022-07-12 19:26:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:46,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:46,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:46,190 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:46,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-07-12 19:26:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:46,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 19:26:46,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:46,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:46,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:46,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124574307] [2022-07-12 19:26:46,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124574307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:46,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:46,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:46,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53101254] [2022-07-12 19:26:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:46,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:46,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:46,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:46,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:46,292 INFO L87 Difference]: Start difference. First operand 504 states and 662 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:46,349 INFO L93 Difference]: Finished difference Result 623 states and 816 transitions. [2022-07-12 19:26:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:46,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 19:26:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:46,351 INFO L225 Difference]: With dead ends: 623 [2022-07-12 19:26:46,351 INFO L226 Difference]: Without dead ends: 623 [2022-07-12 19:26:46,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:46,352 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 120 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:46,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 770 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-07-12 19:26:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 572. [2022-07-12 19:26:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 502 states have (on average 1.2808764940239044) internal successors, (643), 505 states have internal predecessors, (643), 44 states have call successors, (44), 19 states have call predecessors, (44), 25 states have return successors, (63), 48 states have call predecessors, (63), 36 states have call successors, (63) [2022-07-12 19:26:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 750 transitions. [2022-07-12 19:26:46,358 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 750 transitions. Word has length 40 [2022-07-12 19:26:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:46,358 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 750 transitions. [2022-07-12 19:26:46,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 750 transitions. [2022-07-12 19:26:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 19:26:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:46,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:46,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:46,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:46,566 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:46,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1016704727, now seen corresponding path program 1 times [2022-07-12 19:26:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:46,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970625306] [2022-07-12 19:26:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:46,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:46,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:46,567 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:46,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-07-12 19:26:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:46,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:46,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:46,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:46,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:46,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970625306] [2022-07-12 19:26:46,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970625306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:46,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:46,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741415249] [2022-07-12 19:26:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:46,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:46,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:46,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:46,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:46,749 INFO L87 Difference]: Start difference. First operand 572 states and 750 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:47,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:47,051 INFO L93 Difference]: Finished difference Result 535 states and 696 transitions. [2022-07-12 19:26:47,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:47,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 19:26:47,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:47,053 INFO L225 Difference]: With dead ends: 535 [2022-07-12 19:26:47,053 INFO L226 Difference]: Without dead ends: 535 [2022-07-12 19:26:47,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:47,054 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 451 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:47,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1072 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 19:26:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-07-12 19:26:47,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 523. [2022-07-12 19:26:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 457 states have (on average 1.2822757111597374) internal successors, (586), 467 states have internal predecessors, (586), 43 states have call successors, (43), 18 states have call predecessors, (43), 22 states have return successors, (53), 38 states have call predecessors, (53), 35 states have call successors, (53) [2022-07-12 19:26:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 682 transitions. [2022-07-12 19:26:47,059 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 682 transitions. Word has length 40 [2022-07-12 19:26:47,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:47,060 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 682 transitions. [2022-07-12 19:26:47,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:47,060 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 682 transitions. [2022-07-12 19:26:47,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-12 19:26:47,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:47,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:47,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:47,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:47,267 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:47,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:47,267 INFO L85 PathProgramCache]: Analyzing trace with hash 58663888, now seen corresponding path program 1 times [2022-07-12 19:26:47,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:47,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171724489] [2022-07-12 19:26:47,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:47,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:47,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:47,269 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:47,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-07-12 19:26:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:47,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:47,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:47,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:47,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:47,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171724489] [2022-07-12 19:26:47,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171724489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:47,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:47,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:47,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120824590] [2022-07-12 19:26:47,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:47,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:47,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:47,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:47,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:47,426 INFO L87 Difference]: Start difference. First operand 523 states and 682 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:47,636 INFO L93 Difference]: Finished difference Result 702 states and 952 transitions. [2022-07-12 19:26:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-12 19:26:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:47,639 INFO L225 Difference]: With dead ends: 702 [2022-07-12 19:26:47,639 INFO L226 Difference]: Without dead ends: 691 [2022-07-12 19:26:47,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:47,639 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 220 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:47,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 1890 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-07-12 19:26:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 535. [2022-07-12 19:26:47,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 468 states have (on average 1.2820512820512822) internal successors, (600), 479 states have internal predecessors, (600), 43 states have call successors, (43), 18 states have call predecessors, (43), 23 states have return successors, (60), 38 states have call predecessors, (60), 35 states have call successors, (60) [2022-07-12 19:26:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 703 transitions. [2022-07-12 19:26:47,653 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 703 transitions. Word has length 41 [2022-07-12 19:26:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:47,653 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 703 transitions. [2022-07-12 19:26:47,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 703 transitions. [2022-07-12 19:26:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-12 19:26:47,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:47,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:47,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:47,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:47,863 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:47,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:47,864 INFO L85 PathProgramCache]: Analyzing trace with hash -127339668, now seen corresponding path program 1 times [2022-07-12 19:26:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:47,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527926287] [2022-07-12 19:26:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:47,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:47,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:47,866 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:47,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-07-12 19:26:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:47,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:47,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:47,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:47,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:47,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527926287] [2022-07-12 19:26:47,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527926287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:47,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:47,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:47,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496068593] [2022-07-12 19:26:47,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:47,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:47,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:47,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:47,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:47,983 INFO L87 Difference]: Start difference. First operand 535 states and 703 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:47,993 INFO L93 Difference]: Finished difference Result 491 states and 640 transitions. [2022-07-12 19:26:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:47,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-07-12 19:26:47,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:47,995 INFO L225 Difference]: With dead ends: 491 [2022-07-12 19:26:47,995 INFO L226 Difference]: Without dead ends: 491 [2022-07-12 19:26:47,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:47,998 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 39 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:47,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1092 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-12 19:26:48,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2022-07-12 19:26:48,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 430 states have (on average 1.2651162790697674) internal successors, (544), 437 states have internal predecessors, (544), 41 states have call successors, (41), 17 states have call predecessors, (41), 19 states have return successors, (55), 37 states have call predecessors, (55), 34 states have call successors, (55) [2022-07-12 19:26:48,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 640 transitions. [2022-07-12 19:26:48,005 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 640 transitions. Word has length 43 [2022-07-12 19:26:48,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,005 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 640 transitions. [2022-07-12 19:26:48,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:48,005 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 640 transitions. [2022-07-12 19:26:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-12 19:26:48,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:48,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:48,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:48,213 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1059059297, now seen corresponding path program 1 times [2022-07-12 19:26:48,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:48,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045786825] [2022-07-12 19:26:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:48,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:48,214 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:48,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-07-12 19:26:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:48,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:48,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:48,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045786825] [2022-07-12 19:26:48,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045786825] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:48,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041515934] [2022-07-12 19:26:48,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:48,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:48,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:48,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:48,371 INFO L87 Difference]: Start difference. First operand 491 states and 640 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,486 INFO L93 Difference]: Finished difference Result 523 states and 685 transitions. [2022-07-12 19:26:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:48,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-12 19:26:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,488 INFO L225 Difference]: With dead ends: 523 [2022-07-12 19:26:48,488 INFO L226 Difference]: Without dead ends: 512 [2022-07-12 19:26:48,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:48,489 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 18 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2176 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:48,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-07-12 19:26:48,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 491. [2022-07-12 19:26:48,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 430 states have (on average 1.2651162790697674) internal successors, (544), 437 states have internal predecessors, (544), 41 states have call successors, (41), 17 states have call predecessors, (41), 19 states have return successors, (55), 37 states have call predecessors, (55), 34 states have call successors, (55) [2022-07-12 19:26:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 640 transitions. [2022-07-12 19:26:48,494 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 640 transitions. Word has length 42 [2022-07-12 19:26:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,494 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 640 transitions. [2022-07-12 19:26:48,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 640 transitions. [2022-07-12 19:26:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-12 19:26:48,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:48,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:48,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:48,696 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1447532895, now seen corresponding path program 1 times [2022-07-12 19:26:48,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:48,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139851583] [2022-07-12 19:26:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:48,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:48,698 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:48,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-07-12 19:26:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:48,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:48,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:48,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139851583] [2022-07-12 19:26:48,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139851583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018553616] [2022-07-12 19:26:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:48,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:48,878 INFO L87 Difference]: Start difference. First operand 491 states and 640 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,018 INFO L93 Difference]: Finished difference Result 511 states and 662 transitions. [2022-07-12 19:26:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:49,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-12 19:26:49,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,020 INFO L225 Difference]: With dead ends: 511 [2022-07-12 19:26:49,020 INFO L226 Difference]: Without dead ends: 510 [2022-07-12 19:26:49,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:49,021 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 16 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2514 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:49,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-07-12 19:26:49,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 497. [2022-07-12 19:26:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 436 states have (on average 1.2591743119266054) internal successors, (549), 443 states have internal predecessors, (549), 41 states have call successors, (41), 17 states have call predecessors, (41), 19 states have return successors, (55), 37 states have call predecessors, (55), 34 states have call successors, (55) [2022-07-12 19:26:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 645 transitions. [2022-07-12 19:26:49,026 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 645 transitions. Word has length 42 [2022-07-12 19:26:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,027 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 645 transitions. [2022-07-12 19:26:49,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 645 transitions. [2022-07-12 19:26:49,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-12 19:26:49,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:49,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:49,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:49,234 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1447809725, now seen corresponding path program 1 times [2022-07-12 19:26:49,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:49,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573824915] [2022-07-12 19:26:49,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:49,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:49,236 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:49,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-07-12 19:26:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:49,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:49,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:49,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573824915] [2022-07-12 19:26:49,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573824915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:49,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629054240] [2022-07-12 19:26:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:49,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:49,416 INFO L87 Difference]: Start difference. First operand 497 states and 645 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:49,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,532 INFO L93 Difference]: Finished difference Result 508 states and 654 transitions. [2022-07-12 19:26:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:49,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-07-12 19:26:49,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,534 INFO L225 Difference]: With dead ends: 508 [2022-07-12 19:26:49,534 INFO L226 Difference]: Without dead ends: 496 [2022-07-12 19:26:49,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:49,535 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 373 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 630 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-12 19:26:49,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2022-07-12 19:26:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 424 states have (on average 1.2641509433962264) internal successors, (536), 430 states have internal predecessors, (536), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (47), 36 states have call predecessors, (47), 33 states have call successors, (47) [2022-07-12 19:26:49,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 623 transitions. [2022-07-12 19:26:49,540 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 623 transitions. Word has length 42 [2022-07-12 19:26:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,540 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 623 transitions. [2022-07-12 19:26:49,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:49,540 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 623 transitions. [2022-07-12 19:26:49,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-12 19:26:49,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:49,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:49,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:49,748 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1598023321, now seen corresponding path program 1 times [2022-07-12 19:26:49,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:49,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027995169] [2022-07-12 19:26:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:49,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:49,749 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:49,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-07-12 19:26:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:49,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:50,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:50,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:50,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027995169] [2022-07-12 19:26:50,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027995169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:50,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:50,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:50,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321303792] [2022-07-12 19:26:50,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:50,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:50,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:50,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:50,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:50,016 INFO L87 Difference]: Start difference. First operand 483 states and 623 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:50,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:50,125 INFO L93 Difference]: Finished difference Result 483 states and 621 transitions. [2022-07-12 19:26:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:50,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-12 19:26:50,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:50,127 INFO L225 Difference]: With dead ends: 483 [2022-07-12 19:26:50,127 INFO L226 Difference]: Without dead ends: 483 [2022-07-12 19:26:50,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:50,127 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 340 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:50,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 616 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-07-12 19:26:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-07-12 19:26:50,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 424 states have (on average 1.259433962264151) internal successors, (534), 430 states have internal predecessors, (534), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (47), 36 states have call predecessors, (47), 33 states have call successors, (47) [2022-07-12 19:26:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 621 transitions. [2022-07-12 19:26:50,133 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 621 transitions. Word has length 45 [2022-07-12 19:26:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:50,134 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 621 transitions. [2022-07-12 19:26:50,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 621 transitions. [2022-07-12 19:26:50,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 19:26:50,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:50,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:50,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:50,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:50,350 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash -995885365, now seen corresponding path program 1 times [2022-07-12 19:26:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:50,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204844135] [2022-07-12 19:26:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:50,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:50,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:50,352 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:50,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-07-12 19:26:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:50,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:50,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:50,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:50,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:50,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204844135] [2022-07-12 19:26:50,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204844135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:50,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:50,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:50,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163226361] [2022-07-12 19:26:50,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:50,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:50,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:50,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:50,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:50,524 INFO L87 Difference]: Start difference. First operand 483 states and 621 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:50,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:50,794 INFO L93 Difference]: Finished difference Result 592 states and 774 transitions. [2022-07-12 19:26:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:50,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-07-12 19:26:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:50,797 INFO L225 Difference]: With dead ends: 592 [2022-07-12 19:26:50,797 INFO L226 Difference]: Without dead ends: 582 [2022-07-12 19:26:50,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:50,797 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 209 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:50,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2213 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:50,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-07-12 19:26:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 489. [2022-07-12 19:26:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 429 states have (on average 1.2564102564102564) internal successors, (539), 436 states have internal predecessors, (539), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (53), 36 states have call predecessors, (53), 33 states have call successors, (53) [2022-07-12 19:26:50,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 632 transitions. [2022-07-12 19:26:50,803 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 632 transitions. Word has length 46 [2022-07-12 19:26:50,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:50,803 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 632 transitions. [2022-07-12 19:26:50,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 632 transitions. [2022-07-12 19:26:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-12 19:26:50,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:50,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:50,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-07-12 19:26:51,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:51,004 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:51,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1515060383, now seen corresponding path program 1 times [2022-07-12 19:26:51,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:51,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728149469] [2022-07-12 19:26:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:51,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:51,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:51,006 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:51,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-07-12 19:26:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:51,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:51,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:51,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:51,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:51,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728149469] [2022-07-12 19:26:51,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728149469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:51,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:51,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 19:26:51,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901248687] [2022-07-12 19:26:51,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:51,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 19:26:51,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:51,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 19:26:51,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:51,153 INFO L87 Difference]: Start difference. First operand 489 states and 632 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:51,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:51,204 INFO L93 Difference]: Finished difference Result 504 states and 647 transitions. [2022-07-12 19:26:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 19:26:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-12 19:26:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:51,206 INFO L225 Difference]: With dead ends: 504 [2022-07-12 19:26:51,206 INFO L226 Difference]: Without dead ends: 488 [2022-07-12 19:26:51,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:51,210 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 21 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:51,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2153 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-07-12 19:26:51,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-07-12 19:26:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 428 states have (on average 1.2570093457943925) internal successors, (538), 436 states have internal predecessors, (538), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (52), 35 states have call predecessors, (52), 33 states have call successors, (52) [2022-07-12 19:26:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 630 transitions. [2022-07-12 19:26:51,216 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 630 transitions. Word has length 47 [2022-07-12 19:26:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:51,216 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 630 transitions. [2022-07-12 19:26:51,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 630 transitions. [2022-07-12 19:26:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:51,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:51,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:51,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:51,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:51,423 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:51,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1800442805, now seen corresponding path program 1 times [2022-07-12 19:26:51,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:51,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179700443] [2022-07-12 19:26:51,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:51,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:51,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:51,425 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:51,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-07-12 19:26:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:51,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 19:26:51,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:51,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:51,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:51,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179700443] [2022-07-12 19:26:51,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179700443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:51,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:51,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:51,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635928549] [2022-07-12 19:26:51,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:51,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:51,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:51,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:51,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:51,585 INFO L87 Difference]: Start difference. First operand 488 states and 630 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:51,717 INFO L93 Difference]: Finished difference Result 481 states and 617 transitions. [2022-07-12 19:26:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:51,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-12 19:26:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:51,719 INFO L225 Difference]: With dead ends: 481 [2022-07-12 19:26:51,719 INFO L226 Difference]: Without dead ends: 481 [2022-07-12 19:26:51,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:51,719 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 411 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:51,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 709 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-12 19:26:51,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2022-07-12 19:26:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 420 states have (on average 1.2547619047619047) internal successors, (527), 430 states have internal predecessors, (527), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (49), 32 states have call predecessors, (49), 33 states have call successors, (49) [2022-07-12 19:26:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 616 transitions. [2022-07-12 19:26:51,724 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 616 transitions. Word has length 48 [2022-07-12 19:26:51,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:51,724 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 616 transitions. [2022-07-12 19:26:51,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 616 transitions. [2022-07-12 19:26:51,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:51,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:51,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:51,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:51,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:51,940 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:51,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2101663171, now seen corresponding path program 1 times [2022-07-12 19:26:51,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:51,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426577738] [2022-07-12 19:26:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:51,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:51,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:51,941 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:51,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-07-12 19:26:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:52,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:52,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:52,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:52,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:52,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426577738] [2022-07-12 19:26:52,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426577738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:52,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:52,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675881219] [2022-07-12 19:26:52,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:52,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:52,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:52,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:52,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:52,065 INFO L87 Difference]: Start difference. First operand 479 states and 616 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:52,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:52,100 INFO L93 Difference]: Finished difference Result 505 states and 642 transitions. [2022-07-12 19:26:52,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:52,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-12 19:26:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:52,102 INFO L225 Difference]: With dead ends: 505 [2022-07-12 19:26:52,102 INFO L226 Difference]: Without dead ends: 486 [2022-07-12 19:26:52,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:52,103 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 40 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:52,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1422 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:52,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-07-12 19:26:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 474. [2022-07-12 19:26:52,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 417 states have (on average 1.2517985611510791) internal successors, (522), 426 states have internal predecessors, (522), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (47), 31 states have call predecessors, (47), 32 states have call successors, (47) [2022-07-12 19:26:52,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 608 transitions. [2022-07-12 19:26:52,113 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 608 transitions. Word has length 48 [2022-07-12 19:26:52,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:52,114 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 608 transitions. [2022-07-12 19:26:52,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 608 transitions. [2022-07-12 19:26:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-12 19:26:52,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:52,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:52,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:52,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:52,322 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:52,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash 217951924, now seen corresponding path program 1 times [2022-07-12 19:26:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:52,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984933002] [2022-07-12 19:26:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:52,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:52,324 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:52,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-07-12 19:26:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:52,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:52,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:52,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:52,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:52,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984933002] [2022-07-12 19:26:52,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984933002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:52,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:52,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:52,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149981178] [2022-07-12 19:26:52,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:52,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:52,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:52,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:52,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:52,479 INFO L87 Difference]: Start difference. First operand 474 states and 608 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:52,580 INFO L93 Difference]: Finished difference Result 502 states and 644 transitions. [2022-07-12 19:26:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:52,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2022-07-12 19:26:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:52,582 INFO L225 Difference]: With dead ends: 502 [2022-07-12 19:26:52,582 INFO L226 Difference]: Without dead ends: 492 [2022-07-12 19:26:52,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:52,583 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 15 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:52,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2148 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:52,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-12 19:26:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-07-12 19:26:52,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 417 states have (on average 1.2517985611510791) internal successors, (522), 426 states have internal predecessors, (522), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (47), 31 states have call predecessors, (47), 32 states have call successors, (47) [2022-07-12 19:26:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 608 transitions. [2022-07-12 19:26:52,588 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 608 transitions. Word has length 47 [2022-07-12 19:26:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:52,588 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 608 transitions. [2022-07-12 19:26:52,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 608 transitions. [2022-07-12 19:26:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-12 19:26:52,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:52,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:52,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:52,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:52,796 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:52,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:52,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2006327028, now seen corresponding path program 1 times [2022-07-12 19:26:52,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:52,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162431875] [2022-07-12 19:26:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:52,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:52,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:52,798 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:52,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-07-12 19:26:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:52,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:52,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:52,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:52,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:52,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162431875] [2022-07-12 19:26:52,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162431875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:52,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:52,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:52,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394503405] [2022-07-12 19:26:52,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:52,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:52,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:52,942 INFO L87 Difference]: Start difference. First operand 474 states and 608 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:53,070 INFO L93 Difference]: Finished difference Result 489 states and 622 transitions. [2022-07-12 19:26:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:53,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2022-07-12 19:26:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:53,072 INFO L225 Difference]: With dead ends: 489 [2022-07-12 19:26:53,072 INFO L226 Difference]: Without dead ends: 476 [2022-07-12 19:26:53,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:26:53,073 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 12 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:53,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2493 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:53,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-12 19:26:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 464. [2022-07-12 19:26:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 409 states have (on average 1.254278728606357) internal successors, (513), 417 states have internal predecessors, (513), 38 states have call successors, (38), 17 states have call predecessors, (38), 16 states have return successors, (40), 30 states have call predecessors, (40), 31 states have call successors, (40) [2022-07-12 19:26:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 591 transitions. [2022-07-12 19:26:53,078 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 591 transitions. Word has length 47 [2022-07-12 19:26:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:53,078 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 591 transitions. [2022-07-12 19:26:53,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 591 transitions. [2022-07-12 19:26:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-12 19:26:53,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:53,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:53,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:53,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:53,286 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:53,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash -989786577, now seen corresponding path program 1 times [2022-07-12 19:26:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:53,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204725961] [2022-07-12 19:26:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:53,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:53,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:53,288 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:53,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-07-12 19:26:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:53,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:53,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:53,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:53,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:53,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204725961] [2022-07-12 19:26:53,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204725961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:53,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:53,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:53,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644016029] [2022-07-12 19:26:53,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:53,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:53,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:53,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:53,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:53,394 INFO L87 Difference]: Start difference. First operand 464 states and 591 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:53,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:53,428 INFO L93 Difference]: Finished difference Result 477 states and 604 transitions. [2022-07-12 19:26:53,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:53,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2022-07-12 19:26:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:53,430 INFO L225 Difference]: With dead ends: 477 [2022-07-12 19:26:53,430 INFO L226 Difference]: Without dead ends: 460 [2022-07-12 19:26:53,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:53,430 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 21 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:53,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1389 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-07-12 19:26:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-07-12 19:26:53,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 405 states have (on average 1.2518518518518518) internal successors, (507), 413 states have internal predecessors, (507), 38 states have call successors, (38), 17 states have call predecessors, (38), 16 states have return successors, (40), 30 states have call predecessors, (40), 31 states have call successors, (40) [2022-07-12 19:26:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 585 transitions. [2022-07-12 19:26:53,441 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 585 transitions. Word has length 47 [2022-07-12 19:26:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:53,441 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 585 transitions. [2022-07-12 19:26:53,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 585 transitions. [2022-07-12 19:26:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-12 19:26:53,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:53,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:53,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:53,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:53,649 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:53,649 INFO L85 PathProgramCache]: Analyzing trace with hash -217509127, now seen corresponding path program 1 times [2022-07-12 19:26:53,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:53,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029341663] [2022-07-12 19:26:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:53,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:53,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:53,651 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:53,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-07-12 19:26:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:53,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:26:53,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:53,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:53,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:53,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029341663] [2022-07-12 19:26:53,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029341663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:53,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:53,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:53,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775790471] [2022-07-12 19:26:53,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:53,783 INFO L87 Difference]: Start difference. First operand 460 states and 585 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:53,795 INFO L93 Difference]: Finished difference Result 535 states and 676 transitions. [2022-07-12 19:26:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-07-12 19:26:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:53,797 INFO L225 Difference]: With dead ends: 535 [2022-07-12 19:26:53,797 INFO L226 Difference]: Without dead ends: 535 [2022-07-12 19:26:53,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:53,797 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 121 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:53,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-07-12 19:26:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 507. [2022-07-12 19:26:53,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 448 states have (on average 1.2566964285714286) internal successors, (563), 454 states have internal predecessors, (563), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2022-07-12 19:26:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 643 transitions. [2022-07-12 19:26:53,803 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 643 transitions. Word has length 49 [2022-07-12 19:26:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 643 transitions. [2022-07-12 19:26:53,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 643 transitions. [2022-07-12 19:26:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:53,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:53,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:53,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:54,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:54,011 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:54,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1102392332, now seen corresponding path program 1 times [2022-07-12 19:26:54,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:54,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774474426] [2022-07-12 19:26:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:54,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:54,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:54,012 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:54,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-07-12 19:26:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:54,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:26:54,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:54,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:54,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:54,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774474426] [2022-07-12 19:26:54,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774474426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:54,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:54,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:26:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238348844] [2022-07-12 19:26:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:54,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:26:54,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:54,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:26:54,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:26:54,116 INFO L87 Difference]: Start difference. First operand 507 states and 643 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:54,145 INFO L93 Difference]: Finished difference Result 524 states and 665 transitions. [2022-07-12 19:26:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:26:54,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-12 19:26:54,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:54,146 INFO L225 Difference]: With dead ends: 524 [2022-07-12 19:26:54,147 INFO L226 Difference]: Without dead ends: 524 [2022-07-12 19:26:54,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:54,147 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 22 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:54,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1039 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-07-12 19:26:54,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 509. [2022-07-12 19:26:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 450 states have (on average 1.2555555555555555) internal successors, (565), 456 states have internal predecessors, (565), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2022-07-12 19:26:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 645 transitions. [2022-07-12 19:26:54,152 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 645 transitions. Word has length 48 [2022-07-12 19:26:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:54,153 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 645 transitions. [2022-07-12 19:26:54,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 645 transitions. [2022-07-12 19:26:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 19:26:54,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:54,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:54,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:54,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:54,361 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:54,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash -460835788, now seen corresponding path program 1 times [2022-07-12 19:26:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:54,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979315051] [2022-07-12 19:26:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:54,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:54,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:54,362 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:54,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-07-12 19:26:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:54,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 19:26:54,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:54,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:54,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:54,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:54,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979315051] [2022-07-12 19:26:54,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979315051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:54,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:54,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607299980] [2022-07-12 19:26:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:54,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:54,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:54,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:54,504 INFO L87 Difference]: Start difference. First operand 509 states and 645 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:54,562 INFO L93 Difference]: Finished difference Result 528 states and 665 transitions. [2022-07-12 19:26:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:54,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-12 19:26:54,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:54,567 INFO L225 Difference]: With dead ends: 528 [2022-07-12 19:26:54,567 INFO L226 Difference]: Without dead ends: 528 [2022-07-12 19:26:54,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:54,568 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 36 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:54,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2476 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-07-12 19:26:54,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 514. [2022-07-12 19:26:54,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 454 states have (on average 1.251101321585903) internal successors, (568), 460 states have internal predecessors, (568), 40 states have call successors, (40), 19 states have call predecessors, (40), 19 states have return successors, (42), 35 states have call predecessors, (42), 34 states have call successors, (42) [2022-07-12 19:26:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 650 transitions. [2022-07-12 19:26:54,573 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 650 transitions. Word has length 48 [2022-07-12 19:26:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:54,574 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 650 transitions. [2022-07-12 19:26:54,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 650 transitions. [2022-07-12 19:26:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 19:26:54,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:54,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:54,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:54,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:54,781 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:54,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:54,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1942433313, now seen corresponding path program 1 times [2022-07-12 19:26:54,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:54,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829783558] [2022-07-12 19:26:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:54,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:54,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:54,783 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:54,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-07-12 19:26:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:54,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:54,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:54,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:54,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:54,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829783558] [2022-07-12 19:26:54,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829783558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:54,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:54,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:54,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875826636] [2022-07-12 19:26:54,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:54,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:54,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:54,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:54,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:54,900 INFO L87 Difference]: Start difference. First operand 514 states and 650 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:54,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:54,940 INFO L93 Difference]: Finished difference Result 541 states and 682 transitions. [2022-07-12 19:26:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:54,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-07-12 19:26:54,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:54,942 INFO L225 Difference]: With dead ends: 541 [2022-07-12 19:26:54,942 INFO L226 Difference]: Without dead ends: 541 [2022-07-12 19:26:54,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:54,943 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 21 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:54,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1842 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:54,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-07-12 19:26:54,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 512. [2022-07-12 19:26:54,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 453 states have (on average 1.249448123620309) internal successors, (566), 458 states have internal predecessors, (566), 39 states have call successors, (39), 19 states have call predecessors, (39), 19 states have return successors, (41), 35 states have call predecessors, (41), 33 states have call successors, (41) [2022-07-12 19:26:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 646 transitions. [2022-07-12 19:26:54,950 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 646 transitions. Word has length 51 [2022-07-12 19:26:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:54,951 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 646 transitions. [2022-07-12 19:26:54,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 646 transitions. [2022-07-12 19:26:54,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 19:26:54,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:54,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:54,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:55,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:55,158 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:55,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1454966093, now seen corresponding path program 1 times [2022-07-12 19:26:55,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:55,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779431257] [2022-07-12 19:26:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:55,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:55,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:55,160 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:55,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-07-12 19:26:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:55,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 19:26:55,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:55,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:55,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:55,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779431257] [2022-07-12 19:26:55,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779431257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:55,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:55,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:55,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598153396] [2022-07-12 19:26:55,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:55,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:55,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:55,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:55,271 INFO L87 Difference]: Start difference. First operand 512 states and 646 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:55,299 INFO L93 Difference]: Finished difference Result 517 states and 649 transitions. [2022-07-12 19:26:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 19:26:55,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-12 19:26:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:55,300 INFO L225 Difference]: With dead ends: 517 [2022-07-12 19:26:55,301 INFO L226 Difference]: Without dead ends: 514 [2022-07-12 19:26:55,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:55,301 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 18 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:55,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1759 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-07-12 19:26:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 506. [2022-07-12 19:26:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 448 states have (on average 1.2522321428571428) internal successors, (561), 454 states have internal predecessors, (561), 38 states have call successors, (38), 19 states have call predecessors, (38), 19 states have return successors, (39), 33 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-12 19:26:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 638 transitions. [2022-07-12 19:26:55,309 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 638 transitions. Word has length 51 [2022-07-12 19:26:55,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:55,309 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 638 transitions. [2022-07-12 19:26:55,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 638 transitions. [2022-07-12 19:26:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:55,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:55,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:55,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:55,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:55,517 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1872588061, now seen corresponding path program 1 times [2022-07-12 19:26:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:55,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106024588] [2022-07-12 19:26:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:55,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:55,518 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:55,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-07-12 19:26:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:55,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 19:26:55,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:55,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:55,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:55,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106024588] [2022-07-12 19:26:55,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106024588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:55,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:55,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:26:55,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332617822] [2022-07-12 19:26:55,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:55,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:26:55,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:55,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:26:55,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:55,632 INFO L87 Difference]: Start difference. First operand 506 states and 638 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:55,643 INFO L93 Difference]: Finished difference Result 501 states and 632 transitions. [2022-07-12 19:26:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 19:26:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-07-12 19:26:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:55,650 INFO L225 Difference]: With dead ends: 501 [2022-07-12 19:26:55,650 INFO L226 Difference]: Without dead ends: 501 [2022-07-12 19:26:55,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:26:55,651 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 27 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:55,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1390 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:55,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-07-12 19:26:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 488. [2022-07-12 19:26:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 432 states have (on average 1.2569444444444444) internal successors, (543), 438 states have internal predecessors, (543), 37 states have call successors, (37), 18 states have call predecessors, (37), 18 states have return successors, (38), 32 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-12 19:26:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 618 transitions. [2022-07-12 19:26:55,663 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 618 transitions. Word has length 52 [2022-07-12 19:26:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:55,663 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 618 transitions. [2022-07-12 19:26:55,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:26:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 618 transitions. [2022-07-12 19:26:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-12 19:26:55,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:55,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:55,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:55,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:55,870 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:55,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:55,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1296785642, now seen corresponding path program 1 times [2022-07-12 19:26:55,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:55,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201109495] [2022-07-12 19:26:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:55,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:55,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:55,872 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:55,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-07-12 19:26:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:55,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:55,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:56,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:56,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:56,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201109495] [2022-07-12 19:26:56,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201109495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:56,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:56,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:56,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063674407] [2022-07-12 19:26:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:56,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:56,042 INFO L87 Difference]: Start difference. First operand 488 states and 618 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:56,293 INFO L93 Difference]: Finished difference Result 599 states and 770 transitions. [2022-07-12 19:26:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:56,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-07-12 19:26:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:56,295 INFO L225 Difference]: With dead ends: 599 [2022-07-12 19:26:56,295 INFO L226 Difference]: Without dead ends: 586 [2022-07-12 19:26:56,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:26:56,295 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 314 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:56,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 2048 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-07-12 19:26:56,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 494. [2022-07-12 19:26:56,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 437 states have (on average 1.2540045766590389) internal successors, (548), 444 states have internal predecessors, (548), 37 states have call successors, (37), 18 states have call predecessors, (37), 19 states have return successors, (43), 32 states have call predecessors, (43), 31 states have call successors, (43) [2022-07-12 19:26:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 628 transitions. [2022-07-12 19:26:56,301 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 628 transitions. Word has length 51 [2022-07-12 19:26:56,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:56,301 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 628 transitions. [2022-07-12 19:26:56,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 628 transitions. [2022-07-12 19:26:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:56,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:56,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:56,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-07-12 19:26:56,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:56,509 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1023462319, now seen corresponding path program 1 times [2022-07-12 19:26:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:56,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204505917] [2022-07-12 19:26:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:56,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:56,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:56,511 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:56,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-07-12 19:26:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:56,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:56,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:56,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:56,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:56,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204505917] [2022-07-12 19:26:56,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204505917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:56,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:56,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:56,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832219071] [2022-07-12 19:26:56,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:56,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:56,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:56,667 INFO L87 Difference]: Start difference. First operand 494 states and 628 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:56,780 INFO L93 Difference]: Finished difference Result 525 states and 667 transitions. [2022-07-12 19:26:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:56,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:56,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:56,782 INFO L225 Difference]: With dead ends: 525 [2022-07-12 19:26:56,782 INFO L226 Difference]: Without dead ends: 512 [2022-07-12 19:26:56,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:56,782 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 25 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:56,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2356 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-07-12 19:26:56,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 494. [2022-07-12 19:26:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 437 states have (on average 1.2540045766590389) internal successors, (548), 444 states have internal predecessors, (548), 37 states have call successors, (37), 18 states have call predecessors, (37), 19 states have return successors, (43), 32 states have call predecessors, (43), 31 states have call successors, (43) [2022-07-12 19:26:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 628 transitions. [2022-07-12 19:26:56,787 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 628 transitions. Word has length 52 [2022-07-12 19:26:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:56,787 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 628 transitions. [2022-07-12 19:26:56,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 628 transitions. [2022-07-12 19:26:56,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:56,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:56,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:56,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Ended with exit code 0 [2022-07-12 19:26:56,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:56,995 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:56,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:56,995 INFO L85 PathProgramCache]: Analyzing trace with hash -563121297, now seen corresponding path program 1 times [2022-07-12 19:26:56,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:56,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358232464] [2022-07-12 19:26:56,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:56,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:56,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:56,997 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:56,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-07-12 19:26:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:57,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:57,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:57,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:57,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:57,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358232464] [2022-07-12 19:26:57,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358232464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:57,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:57,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:57,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176601837] [2022-07-12 19:26:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:57,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:57,169 INFO L87 Difference]: Start difference. First operand 494 states and 628 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:57,284 INFO L93 Difference]: Finished difference Result 512 states and 646 transitions. [2022-07-12 19:26:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:57,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:57,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:57,285 INFO L225 Difference]: With dead ends: 512 [2022-07-12 19:26:57,285 INFO L226 Difference]: Without dead ends: 496 [2022-07-12 19:26:57,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:57,286 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 25 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:57,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2354 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:57,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-12 19:26:57,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-07-12 19:26:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 429 states have (on average 1.2564102564102564) internal successors, (539), 435 states have internal predecessors, (539), 36 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (37), 31 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-12 19:26:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 612 transitions. [2022-07-12 19:26:57,290 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 612 transitions. Word has length 52 [2022-07-12 19:26:57,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:57,291 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 612 transitions. [2022-07-12 19:26:57,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:57,291 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 612 transitions. [2022-07-12 19:26:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:57,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:57,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:57,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-07-12 19:26:57,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:57,498 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash 507953388, now seen corresponding path program 1 times [2022-07-12 19:26:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:57,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87152569] [2022-07-12 19:26:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:57,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:57,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:57,499 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:57,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-07-12 19:26:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:57,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:57,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:57,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:57,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:57,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87152569] [2022-07-12 19:26:57,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87152569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:57,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:57,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:57,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719506961] [2022-07-12 19:26:57,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:57,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:57,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:57,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:57,667 INFO L87 Difference]: Start difference. First operand 484 states and 612 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:57,921 INFO L93 Difference]: Finished difference Result 594 states and 762 transitions. [2022-07-12 19:26:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:57,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:57,922 INFO L225 Difference]: With dead ends: 594 [2022-07-12 19:26:57,922 INFO L226 Difference]: Without dead ends: 581 [2022-07-12 19:26:57,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:26:57,923 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 300 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:57,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 2374 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-12 19:26:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 490. [2022-07-12 19:26:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 434 states have (on average 1.2534562211981566) internal successors, (544), 441 states have internal predecessors, (544), 36 states have call successors, (36), 18 states have call predecessors, (36), 19 states have return successors, (41), 31 states have call predecessors, (41), 30 states have call successors, (41) [2022-07-12 19:26:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 621 transitions. [2022-07-12 19:26:57,930 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 621 transitions. Word has length 52 [2022-07-12 19:26:57,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:57,930 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 621 transitions. [2022-07-12 19:26:57,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 621 transitions. [2022-07-12 19:26:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:57,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:57,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:57,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:58,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:58,141 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:58,141 INFO L85 PathProgramCache]: Analyzing trace with hash 750831986, now seen corresponding path program 1 times [2022-07-12 19:26:58,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:58,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553359570] [2022-07-12 19:26:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:58,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:58,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:58,143 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:58,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-07-12 19:26:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:58,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:58,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:58,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:58,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:58,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553359570] [2022-07-12 19:26:58,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553359570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:58,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:58,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:58,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009959805] [2022-07-12 19:26:58,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:58,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:58,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:58,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:58,317 INFO L87 Difference]: Start difference. First operand 490 states and 621 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:58,577 INFO L93 Difference]: Finished difference Result 593 states and 760 transitions. [2022-07-12 19:26:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:58,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:58,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:58,578 INFO L225 Difference]: With dead ends: 593 [2022-07-12 19:26:58,579 INFO L226 Difference]: Without dead ends: 580 [2022-07-12 19:26:58,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:26:58,579 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 303 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:58,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 2319 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:26:58,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-07-12 19:26:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 490. [2022-07-12 19:26:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 434 states have (on average 1.2534562211981566) internal successors, (544), 441 states have internal predecessors, (544), 36 states have call successors, (36), 18 states have call predecessors, (36), 19 states have return successors, (40), 31 states have call predecessors, (40), 30 states have call successors, (40) [2022-07-12 19:26:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 620 transitions. [2022-07-12 19:26:58,583 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 620 transitions. Word has length 52 [2022-07-12 19:26:58,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:58,584 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 620 transitions. [2022-07-12 19:26:58,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:58,584 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 620 transitions. [2022-07-12 19:26:58,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 19:26:58,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:58,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:58,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:58,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:58,787 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:58,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:58,788 INFO L85 PathProgramCache]: Analyzing trace with hash -831882757, now seen corresponding path program 1 times [2022-07-12 19:26:58,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:58,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356744182] [2022-07-12 19:26:58,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:58,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:58,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:58,789 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:58,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-07-12 19:26:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:58,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:58,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:58,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:58,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:58,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356744182] [2022-07-12 19:26:58,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356744182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:58,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:58,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:26:58,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057911696] [2022-07-12 19:26:58,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:58,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:26:58,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:58,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:26:58,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:26:58,939 INFO L87 Difference]: Start difference. First operand 490 states and 620 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:59,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:59,109 INFO L93 Difference]: Finished difference Result 588 states and 753 transitions. [2022-07-12 19:26:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:26:59,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-12 19:26:59,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:59,110 INFO L225 Difference]: With dead ends: 588 [2022-07-12 19:26:59,110 INFO L226 Difference]: Without dead ends: 578 [2022-07-12 19:26:59,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:26:59,111 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 197 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:59,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1838 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-07-12 19:26:59,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 490. [2022-07-12 19:26:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 434 states have (on average 1.2534562211981566) internal successors, (544), 441 states have internal predecessors, (544), 36 states have call successors, (36), 18 states have call predecessors, (36), 19 states have return successors, (39), 31 states have call predecessors, (39), 30 states have call successors, (39) [2022-07-12 19:26:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 619 transitions. [2022-07-12 19:26:59,116 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 619 transitions. Word has length 52 [2022-07-12 19:26:59,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:59,116 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 619 transitions. [2022-07-12 19:26:59,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:59,116 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 619 transitions. [2022-07-12 19:26:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 19:26:59,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:59,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:59,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2022-07-12 19:26:59,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:59,322 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 860965226, now seen corresponding path program 1 times [2022-07-12 19:26:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:59,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579853149] [2022-07-12 19:26:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:59,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:59,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:59,324 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:59,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-07-12 19:26:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:59,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 19:26:59,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:59,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:59,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:59,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579853149] [2022-07-12 19:26:59,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579853149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:59,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:59,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 19:26:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389569068] [2022-07-12 19:26:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:59,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 19:26:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:59,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 19:26:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 19:26:59,450 INFO L87 Difference]: Start difference. First operand 490 states and 619 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:59,492 INFO L93 Difference]: Finished difference Result 607 states and 785 transitions. [2022-07-12 19:26:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:26:59,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-07-12 19:26:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:59,494 INFO L225 Difference]: With dead ends: 607 [2022-07-12 19:26:59,494 INFO L226 Difference]: Without dead ends: 607 [2022-07-12 19:26:59,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:26:59,494 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 75 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:59,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 2021 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:59,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-12 19:26:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 476. [2022-07-12 19:26:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 422 states have (on average 1.2511848341232228) internal successors, (528), 428 states have internal predecessors, (528), 34 states have call successors, (34), 17 states have call predecessors, (34), 19 states have return successors, (37), 31 states have call predecessors, (37), 29 states have call successors, (37) [2022-07-12 19:26:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 599 transitions. [2022-07-12 19:26:59,499 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 599 transitions. Word has length 54 [2022-07-12 19:26:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:59,499 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 599 transitions. [2022-07-12 19:26:59,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 599 transitions. [2022-07-12 19:26:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:26:59,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:59,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:59,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-07-12 19:26:59,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:26:59,700 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1142364733, now seen corresponding path program 1 times [2022-07-12 19:26:59,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:26:59,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293917889] [2022-07-12 19:26:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:59,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:26:59,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:26:59,702 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:26:59,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-07-12 19:26:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:59,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:26:59,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:26:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:59,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:26:59,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:26:59,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293917889] [2022-07-12 19:26:59,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293917889] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:59,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:59,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:26:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840887191] [2022-07-12 19:26:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:59,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:26:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:26:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:26:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:26:59,864 INFO L87 Difference]: Start difference. First operand 476 states and 599 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:59,984 INFO L93 Difference]: Finished difference Result 507 states and 636 transitions. [2022-07-12 19:26:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:26:59,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:26:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:59,985 INFO L225 Difference]: With dead ends: 507 [2022-07-12 19:26:59,985 INFO L226 Difference]: Without dead ends: 494 [2022-07-12 19:26:59,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:26:59,986 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 25 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:59,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2340 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:26:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-07-12 19:26:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 482. [2022-07-12 19:26:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 427 states have (on average 1.2482435597189696) internal successors, (533), 434 states have internal predecessors, (533), 34 states have call successors, (34), 17 states have call predecessors, (34), 20 states have return successors, (41), 31 states have call predecessors, (41), 29 states have call successors, (41) [2022-07-12 19:26:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 608 transitions. [2022-07-12 19:26:59,990 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 608 transitions. Word has length 53 [2022-07-12 19:26:59,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:59,990 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 608 transitions. [2022-07-12 19:26:59,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:26:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 608 transitions. [2022-07-12 19:26:59,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:26:59,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:59,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:59,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:00,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:00,192 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:00,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1566018947, now seen corresponding path program 1 times [2022-07-12 19:27:00,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:00,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678931] [2022-07-12 19:27:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:00,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:00,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:00,193 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:00,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-07-12 19:27:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:00,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:00,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:00,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:00,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:00,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678931] [2022-07-12 19:27:00,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:00,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:00,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950581208] [2022-07-12 19:27:00,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:00,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:00,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:00,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:00,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:00,356 INFO L87 Difference]: Start difference. First operand 482 states and 608 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:00,479 INFO L93 Difference]: Finished difference Result 500 states and 626 transitions. [2022-07-12 19:27:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:00,480 INFO L225 Difference]: With dead ends: 500 [2022-07-12 19:27:00,480 INFO L226 Difference]: Without dead ends: 483 [2022-07-12 19:27:00,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:27:00,480 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 22 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:00,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2682 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-07-12 19:27:00,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 471. [2022-07-12 19:27:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.2511961722488039) internal successors, (523), 424 states have internal predecessors, (523), 33 states have call successors, (33), 17 states have call predecessors, (33), 19 states have return successors, (36), 30 states have call predecessors, (36), 28 states have call successors, (36) [2022-07-12 19:27:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 592 transitions. [2022-07-12 19:27:00,485 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 592 transitions. Word has length 53 [2022-07-12 19:27:00,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:00,485 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 592 transitions. [2022-07-12 19:27:00,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 592 transitions. [2022-07-12 19:27:00,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:27:00,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:00,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:00,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:00,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:00,693 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:00,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:00,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1800376175, now seen corresponding path program 1 times [2022-07-12 19:27:00,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:00,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268642013] [2022-07-12 19:27:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:00,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:00,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:00,695 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:00,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-07-12 19:27:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:00,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:00,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:00,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:00,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:00,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268642013] [2022-07-12 19:27:00,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268642013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:00,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:00,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:00,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769085536] [2022-07-12 19:27:00,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:00,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:00,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:00,857 INFO L87 Difference]: Start difference. First operand 471 states and 592 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:00,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:00,963 INFO L93 Difference]: Finished difference Result 502 states and 628 transitions. [2022-07-12 19:27:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:00,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:00,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:00,965 INFO L225 Difference]: With dead ends: 502 [2022-07-12 19:27:00,965 INFO L226 Difference]: Without dead ends: 489 [2022-07-12 19:27:00,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:27:00,965 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 25 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:00,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2242 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-07-12 19:27:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 477. [2022-07-12 19:27:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 423 states have (on average 1.24822695035461) internal successors, (528), 430 states have internal predecessors, (528), 33 states have call successors, (33), 17 states have call predecessors, (33), 20 states have return successors, (39), 30 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-12 19:27:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 600 transitions. [2022-07-12 19:27:00,969 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 600 transitions. Word has length 53 [2022-07-12 19:27:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:00,970 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 600 transitions. [2022-07-12 19:27:00,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 600 transitions. [2022-07-12 19:27:00,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:27:00,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:00,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:00,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:01,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:01,178 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:01,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:01,179 INFO L85 PathProgramCache]: Analyzing trace with hash 908007505, now seen corresponding path program 1 times [2022-07-12 19:27:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:01,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293615331] [2022-07-12 19:27:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:01,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:01,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:01,181 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:01,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-07-12 19:27:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:01,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:01,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:01,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:01,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:01,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293615331] [2022-07-12 19:27:01,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293615331] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:01,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:01,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:01,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335104221] [2022-07-12 19:27:01,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:01,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:01,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:01,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:01,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:01,336 INFO L87 Difference]: Start difference. First operand 477 states and 600 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:01,474 INFO L93 Difference]: Finished difference Result 495 states and 618 transitions. [2022-07-12 19:27:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:01,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:01,475 INFO L225 Difference]: With dead ends: 495 [2022-07-12 19:27:01,476 INFO L226 Difference]: Without dead ends: 479 [2022-07-12 19:27:01,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:27:01,476 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 22 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:01,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2558 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:01,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-12 19:27:01,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 467. [2022-07-12 19:27:01,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 415 states have (on average 1.2506024096385542) internal successors, (519), 421 states have internal predecessors, (519), 32 states have call successors, (32), 17 states have call predecessors, (32), 19 states have return successors, (35), 29 states have call predecessors, (35), 27 states have call successors, (35) [2022-07-12 19:27:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 586 transitions. [2022-07-12 19:27:01,481 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 586 transitions. Word has length 53 [2022-07-12 19:27:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:01,481 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 586 transitions. [2022-07-12 19:27:01,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 586 transitions. [2022-07-12 19:27:01,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:27:01,482 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:01,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:01,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:01,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:01,689 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:01,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:01,689 INFO L85 PathProgramCache]: Analyzing trace with hash 543462463, now seen corresponding path program 1 times [2022-07-12 19:27:01,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:01,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805236467] [2022-07-12 19:27:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:01,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:01,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:01,691 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:01,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-07-12 19:27:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:01,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 19:27:01,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:01,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:01,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:01,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805236467] [2022-07-12 19:27:01,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805236467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:01,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:01,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 19:27:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043487351] [2022-07-12 19:27:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:01,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 19:27:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:01,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 19:27:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 19:27:01,809 INFO L87 Difference]: Start difference. First operand 467 states and 586 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:01,827 INFO L93 Difference]: Finished difference Result 477 states and 597 transitions. [2022-07-12 19:27:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 19:27:01,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:01,829 INFO L225 Difference]: With dead ends: 477 [2022-07-12 19:27:01,829 INFO L226 Difference]: Without dead ends: 477 [2022-07-12 19:27:01,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:27:01,829 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 16 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:01,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 961 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-07-12 19:27:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 473. [2022-07-12 19:27:01,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 421 states have (on average 1.2494061757719714) internal successors, (526), 427 states have internal predecessors, (526), 32 states have call successors, (32), 17 states have call predecessors, (32), 19 states have return successors, (35), 29 states have call predecessors, (35), 27 states have call successors, (35) [2022-07-12 19:27:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 593 transitions. [2022-07-12 19:27:01,834 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 593 transitions. Word has length 53 [2022-07-12 19:27:01,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:01,835 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 593 transitions. [2022-07-12 19:27:01,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 593 transitions. [2022-07-12 19:27:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:27:01,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:01,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:01,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:02,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:02,044 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:02,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:02,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1043121153, now seen corresponding path program 1 times [2022-07-12 19:27:02,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:02,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932007888] [2022-07-12 19:27:02,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:02,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:02,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:02,046 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:02,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-07-12 19:27:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:02,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 19:27:02,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:02,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:02,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:02,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932007888] [2022-07-12 19:27:02,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932007888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:02,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:02,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:27:02,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218749715] [2022-07-12 19:27:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:02,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:27:02,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:27:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:27:02,188 INFO L87 Difference]: Start difference. First operand 473 states and 593 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:02,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:02,246 INFO L93 Difference]: Finished difference Result 475 states and 590 transitions. [2022-07-12 19:27:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:27:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:02,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:02,247 INFO L225 Difference]: With dead ends: 475 [2022-07-12 19:27:02,247 INFO L226 Difference]: Without dead ends: 475 [2022-07-12 19:27:02,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:27:02,248 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 39 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:02,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2316 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-07-12 19:27:02,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 456. [2022-07-12 19:27:02,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 406 states have (on average 1.2438423645320198) internal successors, (505), 411 states have internal predecessors, (505), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (33), 28 states have call predecessors, (33), 27 states have call successors, (33) [2022-07-12 19:27:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 569 transitions. [2022-07-12 19:27:02,252 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 569 transitions. Word has length 53 [2022-07-12 19:27:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:02,252 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 569 transitions. [2022-07-12 19:27:02,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 569 transitions. [2022-07-12 19:27:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:27:02,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:02,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:02,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:02,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:02,460 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1485518840, now seen corresponding path program 1 times [2022-07-12 19:27:02,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:02,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207157714] [2022-07-12 19:27:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:02,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:02,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:02,462 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:02,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-07-12 19:27:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:02,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:02,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:02,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:02,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:02,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207157714] [2022-07-12 19:27:02,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207157714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:02,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:02,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:27:02,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923818158] [2022-07-12 19:27:02,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:02,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:27:02,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:27:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:27:02,606 INFO L87 Difference]: Start difference. First operand 456 states and 569 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:02,683 INFO L93 Difference]: Finished difference Result 484 states and 600 transitions. [2022-07-12 19:27:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:27:02,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:02,685 INFO L225 Difference]: With dead ends: 484 [2022-07-12 19:27:02,685 INFO L226 Difference]: Without dead ends: 474 [2022-07-12 19:27:02,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:27:02,686 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:02,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1910 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-07-12 19:27:02,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 456. [2022-07-12 19:27:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 406 states have (on average 1.2438423645320198) internal successors, (505), 411 states have internal predecessors, (505), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (33), 28 states have call predecessors, (33), 27 states have call successors, (33) [2022-07-12 19:27:02,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 569 transitions. [2022-07-12 19:27:02,690 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 569 transitions. Word has length 53 [2022-07-12 19:27:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:02,690 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 569 transitions. [2022-07-12 19:27:02,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 569 transitions. [2022-07-12 19:27:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 19:27:02,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:02,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:02,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-07-12 19:27:02,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:02,897 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:02,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1021073352, now seen corresponding path program 1 times [2022-07-12 19:27:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:02,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520292565] [2022-07-12 19:27:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:02,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:02,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:02,899 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:02,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-07-12 19:27:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:02,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:02,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:03,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:03,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:03,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520292565] [2022-07-12 19:27:03,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520292565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:03,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:03,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:27:03,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877575242] [2022-07-12 19:27:03,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:03,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:27:03,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:27:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:27:03,041 INFO L87 Difference]: Start difference. First operand 456 states and 569 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:03,114 INFO L93 Difference]: Finished difference Result 470 states and 582 transitions. [2022-07-12 19:27:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:27:03,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-12 19:27:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:03,115 INFO L225 Difference]: With dead ends: 470 [2022-07-12 19:27:03,115 INFO L226 Difference]: Without dead ends: 453 [2022-07-12 19:27:03,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 19:27:03,115 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 15 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:03,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1908 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-07-12 19:27:03,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 441. [2022-07-12 19:27:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 393 states have (on average 1.2442748091603053) internal successors, (489), 397 states have internal predecessors, (489), 30 states have call successors, (30), 17 states have call predecessors, (30), 17 states have return successors, (30), 27 states have call predecessors, (30), 26 states have call successors, (30) [2022-07-12 19:27:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 549 transitions. [2022-07-12 19:27:03,119 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 549 transitions. Word has length 53 [2022-07-12 19:27:03,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:03,120 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 549 transitions. [2022-07-12 19:27:03,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 549 transitions. [2022-07-12 19:27:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 19:27:03,120 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:03,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:03,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Ended with exit code 0 [2022-07-12 19:27:03,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:03,327 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:03,327 INFO L85 PathProgramCache]: Analyzing trace with hash 911699668, now seen corresponding path program 1 times [2022-07-12 19:27:03,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:03,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554986262] [2022-07-12 19:27:03,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:03,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:03,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:03,329 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:03,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-07-12 19:27:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:03,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:03,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:03,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:03,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:03,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554986262] [2022-07-12 19:27:03,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554986262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:03,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:03,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:03,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448318750] [2022-07-12 19:27:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:03,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:03,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:03,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:03,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:03,497 INFO L87 Difference]: Start difference. First operand 441 states and 549 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:03,568 INFO L93 Difference]: Finished difference Result 459 states and 568 transitions. [2022-07-12 19:27:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2022-07-12 19:27:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:03,569 INFO L225 Difference]: With dead ends: 459 [2022-07-12 19:27:03,569 INFO L226 Difference]: Without dead ends: 443 [2022-07-12 19:27:03,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:27:03,569 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 30 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:03,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 2387 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-12 19:27:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-07-12 19:27:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 399 states have internal predecessors, (490), 30 states have call successors, (30), 17 states have call predecessors, (30), 18 states have return successors, (31), 27 states have call predecessors, (31), 26 states have call successors, (31) [2022-07-12 19:27:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 551 transitions. [2022-07-12 19:27:03,574 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 551 transitions. Word has length 56 [2022-07-12 19:27:03,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:03,574 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 551 transitions. [2022-07-12 19:27:03,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 551 transitions. [2022-07-12 19:27:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 19:27:03,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:03,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:03,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:03,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:03,779 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:03,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash 65580225, now seen corresponding path program 1 times [2022-07-12 19:27:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:03,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500488645] [2022-07-12 19:27:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:03,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:03,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:03,781 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:03,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-07-12 19:27:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:03,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:03,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:03,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:03,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:03,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500488645] [2022-07-12 19:27:03,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500488645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:03,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:03,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:03,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445866605] [2022-07-12 19:27:03,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:03,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:03,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:03,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:03,940 INFO L87 Difference]: Start difference. First operand 443 states and 551 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:04,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:04,127 INFO L93 Difference]: Finished difference Result 549 states and 693 transitions. [2022-07-12 19:27:04,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:04,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-12 19:27:04,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:04,128 INFO L225 Difference]: With dead ends: 549 [2022-07-12 19:27:04,128 INFO L226 Difference]: Without dead ends: 527 [2022-07-12 19:27:04,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:27:04,128 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 288 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:04,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1835 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:04,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-07-12 19:27:04,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 449. [2022-07-12 19:27:04,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 399 states have (on average 1.2406015037593985) internal successors, (495), 405 states have internal predecessors, (495), 30 states have call successors, (30), 17 states have call predecessors, (30), 19 states have return successors, (32), 27 states have call predecessors, (32), 26 states have call successors, (32) [2022-07-12 19:27:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 557 transitions. [2022-07-12 19:27:04,132 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 557 transitions. Word has length 56 [2022-07-12 19:27:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:04,133 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 557 transitions. [2022-07-12 19:27:04,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:04,133 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 557 transitions. [2022-07-12 19:27:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 19:27:04,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:04,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:04,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2022-07-12 19:27:04,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:04,334 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1208729314, now seen corresponding path program 1 times [2022-07-12 19:27:04,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:04,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415261863] [2022-07-12 19:27:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:04,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:04,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:04,336 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:04,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-07-12 19:27:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:04,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:04,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:04,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:04,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:04,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415261863] [2022-07-12 19:27:04,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415261863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:04,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:04,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196127105] [2022-07-12 19:27:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:04,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:04,498 INFO L87 Difference]: Start difference. First operand 449 states and 557 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:04,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:04,608 INFO L93 Difference]: Finished difference Result 489 states and 604 transitions. [2022-07-12 19:27:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:04,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-07-12 19:27:04,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:04,609 INFO L225 Difference]: With dead ends: 489 [2022-07-12 19:27:04,609 INFO L226 Difference]: Without dead ends: 467 [2022-07-12 19:27:04,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:27:04,609 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 30 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:04,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2377 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-07-12 19:27:04,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 449. [2022-07-12 19:27:04,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 399 states have (on average 1.2406015037593985) internal successors, (495), 405 states have internal predecessors, (495), 30 states have call successors, (30), 17 states have call predecessors, (30), 19 states have return successors, (32), 27 states have call predecessors, (32), 26 states have call successors, (32) [2022-07-12 19:27:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 557 transitions. [2022-07-12 19:27:04,613 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 557 transitions. Word has length 57 [2022-07-12 19:27:04,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:04,613 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 557 transitions. [2022-07-12 19:27:04,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 557 transitions. [2022-07-12 19:27:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 19:27:04,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:04,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:04,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:04,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:04,818 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:04,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:04,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1411317538, now seen corresponding path program 1 times [2022-07-12 19:27:04,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:04,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689944424] [2022-07-12 19:27:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:04,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:04,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:04,820 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:04,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-07-12 19:27:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:04,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:04,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:04,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:04,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:04,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689944424] [2022-07-12 19:27:04,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689944424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:04,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:04,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:04,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786606738] [2022-07-12 19:27:04,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:04,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:04,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:04,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:04,979 INFO L87 Difference]: Start difference. First operand 449 states and 557 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:05,108 INFO L93 Difference]: Finished difference Result 467 states and 575 transitions. [2022-07-12 19:27:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-07-12 19:27:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:05,109 INFO L225 Difference]: With dead ends: 467 [2022-07-12 19:27:05,109 INFO L226 Difference]: Without dead ends: 433 [2022-07-12 19:27:05,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:27:05,109 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 30 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:05,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2356 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-07-12 19:27:05,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 421. [2022-07-12 19:27:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 375 states have (on average 1.2426666666666666) internal successors, (466), 380 states have internal predecessors, (466), 28 states have call successors, (28), 16 states have call predecessors, (28), 17 states have return successors, (29), 25 states have call predecessors, (29), 24 states have call successors, (29) [2022-07-12 19:27:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 523 transitions. [2022-07-12 19:27:05,114 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 523 transitions. Word has length 57 [2022-07-12 19:27:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:05,114 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 523 transitions. [2022-07-12 19:27:05,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 19:27:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 523 transitions. [2022-07-12 19:27:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-12 19:27:05,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:05,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:05,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:05,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:05,322 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:05,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:05,323 INFO L85 PathProgramCache]: Analyzing trace with hash 166689695, now seen corresponding path program 1 times [2022-07-12 19:27:05,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:05,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809081165] [2022-07-12 19:27:05,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:05,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:05,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:05,324 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:05,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-07-12 19:27:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:05,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 19:27:05,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:05,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:05,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809081165] [2022-07-12 19:27:05,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809081165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:05,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:05,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 19:27:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062292510] [2022-07-12 19:27:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:05,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 19:27:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 19:27:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 19:27:05,476 INFO L87 Difference]: Start difference. First operand 421 states and 523 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:05,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:05,539 INFO L93 Difference]: Finished difference Result 431 states and 532 transitions. [2022-07-12 19:27:05,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 19:27:05,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2022-07-12 19:27:05,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:05,540 INFO L225 Difference]: With dead ends: 431 [2022-07-12 19:27:05,540 INFO L226 Difference]: Without dead ends: 387 [2022-07-12 19:27:05,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:27:05,540 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 33 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:05,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 2242 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-07-12 19:27:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2022-07-12 19:27:05,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 343 states have (on average 1.2361516034985423) internal successors, (424), 347 states have internal predecessors, (424), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-12 19:27:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 476 transitions. [2022-07-12 19:27:05,544 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 476 transitions. Word has length 61 [2022-07-12 19:27:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:05,544 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 476 transitions. [2022-07-12 19:27:05,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 476 transitions. [2022-07-12 19:27:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 19:27:05,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:05,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:05,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Ended with exit code 0 [2022-07-12 19:27:05,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:05,751 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:05,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:05,751 INFO L85 PathProgramCache]: Analyzing trace with hash 695777282, now seen corresponding path program 1 times [2022-07-12 19:27:05,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:05,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754529406] [2022-07-12 19:27:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:05,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:05,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:05,753 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:05,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-07-12 19:27:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:05,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 19:27:05,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:05,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:05,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:05,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754529406] [2022-07-12 19:27:05,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754529406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:05,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:05,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:27:05,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878458415] [2022-07-12 19:27:05,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:05,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:27:05,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:27:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:27:05,914 INFO L87 Difference]: Start difference. First operand 385 states and 476 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:05,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:05,999 INFO L93 Difference]: Finished difference Result 423 states and 519 transitions. [2022-07-12 19:27:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:27:05,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 66 [2022-07-12 19:27:06,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:06,000 INFO L225 Difference]: With dead ends: 423 [2022-07-12 19:27:06,000 INFO L226 Difference]: Without dead ends: 407 [2022-07-12 19:27:06,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-07-12 19:27:06,000 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 224 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:06,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1473 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 19:27:06,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-12 19:27:06,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 393. [2022-07-12 19:27:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 354 states have internal predecessors, (431), 26 states have call successors, (26), 15 states have call predecessors, (26), 16 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-07-12 19:27:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 486 transitions. [2022-07-12 19:27:06,004 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 486 transitions. Word has length 66 [2022-07-12 19:27:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:06,004 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 486 transitions. [2022-07-12 19:27:06,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 486 transitions. [2022-07-12 19:27:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 19:27:06,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:06,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:06,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:06,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:06,205 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1438395151, now seen corresponding path program 1 times [2022-07-12 19:27:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:06,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974538422] [2022-07-12 19:27:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:06,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:06,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:06,207 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:06,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-07-12 19:27:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:06,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 19:27:06,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:06,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:06,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:06,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974538422] [2022-07-12 19:27:06,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974538422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:06,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:06,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:27:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680601999] [2022-07-12 19:27:06,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:06,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:27:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:27:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:27:06,341 INFO L87 Difference]: Start difference. First operand 393 states and 486 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:06,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:06,399 INFO L93 Difference]: Finished difference Result 423 states and 518 transitions. [2022-07-12 19:27:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:27:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2022-07-12 19:27:06,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:06,399 INFO L225 Difference]: With dead ends: 423 [2022-07-12 19:27:06,399 INFO L226 Difference]: Without dead ends: 407 [2022-07-12 19:27:06,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-12 19:27:06,400 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 27 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:06,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1791 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-12 19:27:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 385. [2022-07-12 19:27:06,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 343 states have (on average 1.2332361516034986) internal successors, (423), 347 states have internal predecessors, (423), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 23 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-12 19:27:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 475 transitions. [2022-07-12 19:27:06,403 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 475 transitions. Word has length 67 [2022-07-12 19:27:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:06,403 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 475 transitions. [2022-07-12 19:27:06,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 475 transitions. [2022-07-12 19:27:06,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 19:27:06,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:06,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:06,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Ended with exit code 0 [2022-07-12 19:27:06,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:06,604 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:06,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1845717767, now seen corresponding path program 1 times [2022-07-12 19:27:06,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:06,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197826061] [2022-07-12 19:27:06,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:06,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:06,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:06,606 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:06,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-07-12 19:27:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:06,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 19:27:06,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:06,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:06,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:06,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197826061] [2022-07-12 19:27:06,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197826061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:06,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:06,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 19:27:06,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518080915] [2022-07-12 19:27:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:06,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 19:27:06,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:06,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 19:27:06,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 19:27:06,752 INFO L87 Difference]: Start difference. First operand 385 states and 475 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:06,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:06,832 INFO L93 Difference]: Finished difference Result 409 states and 501 transitions. [2022-07-12 19:27:06,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 19:27:06,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2022-07-12 19:27:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:06,833 INFO L225 Difference]: With dead ends: 409 [2022-07-12 19:27:06,833 INFO L226 Difference]: Without dead ends: 385 [2022-07-12 19:27:06,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-12 19:27:06,833 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 72 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:06,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1633 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-07-12 19:27:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 378. [2022-07-12 19:27:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 336 states have (on average 1.2291666666666667) internal successors, (413), 341 states have internal predecessors, (413), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-12 19:27:06,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 465 transitions. [2022-07-12 19:27:06,837 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 465 transitions. Word has length 71 [2022-07-12 19:27:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:06,837 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 465 transitions. [2022-07-12 19:27:06,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 19:27:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 465 transitions. [2022-07-12 19:27:06,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 19:27:06,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:06,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:06,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Ended with exit code 0 [2022-07-12 19:27:07,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:07,045 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:07,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:07,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1182982275, now seen corresponding path program 1 times [2022-07-12 19:27:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:07,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399883985] [2022-07-12 19:27:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:07,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:07,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:07,046 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:07,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-07-12 19:27:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:07,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 19:27:07,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 19:27:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:07,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 19:27:07,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 19:27:07,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399883985] [2022-07-12 19:27:07,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399883985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:07,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:07,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 19:27:07,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058156108] [2022-07-12 19:27:07,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:07,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 19:27:07,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 19:27:07,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 19:27:07,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 19:27:07,190 INFO L87 Difference]: Start difference. First operand 378 states and 465 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 19:27:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:07,358 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2022-07-12 19:27:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 19:27:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 72 [2022-07-12 19:27:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:07,359 INFO L225 Difference]: With dead ends: 491 [2022-07-12 19:27:07,360 INFO L226 Difference]: Without dead ends: 491 [2022-07-12 19:27:07,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 19:27:07,360 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 304 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:07,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 750 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 19:27:07,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-12 19:27:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 472. [2022-07-12 19:27:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 420 states have (on average 1.2214285714285715) internal successors, (513), 427 states have internal predecessors, (513), 28 states have call successors, (28), 21 states have call predecessors, (28), 23 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2022-07-12 19:27:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 570 transitions. [2022-07-12 19:27:07,364 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 570 transitions. Word has length 72 [2022-07-12 19:27:07,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:07,364 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 570 transitions. [2022-07-12 19:27:07,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 19:27:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 570 transitions. [2022-07-12 19:27:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 19:27:07,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:07,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:07,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:07,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:07,565 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash 661499576, now seen corresponding path program 1 times [2022-07-12 19:27:07,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 19:27:07,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080982541] [2022-07-12 19:27:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:07,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 19:27:07,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 19:27:07,567 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 19:27:07,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-07-12 19:27:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 19:27:07,661 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 19:27:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 19:27:07,811 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 19:27:07,812 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 19:27:07,813 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-12 19:27:07,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-12 19:27:07,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-07-12 19:27:08,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 19:27:08,025 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:08,027 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 19:27:08,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 07:27:08 BoogieIcfgContainer [2022-07-12 19:27:08,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 19:27:08,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 19:27:08,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 19:27:08,133 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 19:27:08,133 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:33" (3/4) ... [2022-07-12 19:27:08,135 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 19:27:08,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 19:27:08,135 INFO L158 Benchmark]: Toolchain (without parser) took 35702.28ms. Allocated memory was 52.4MB in the beginning and 130.0MB in the end (delta: 77.6MB). Free memory was 28.4MB in the beginning and 47.3MB in the end (delta: -19.0MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2022-07-12 19:27:08,135 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 19:27:08,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.93ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 28.2MB in the beginning and 43.3MB in the end (delta: -15.1MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-07-12 19:27:08,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.85ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 37.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 19:27:08,136 INFO L158 Benchmark]: Boogie Preprocessor took 70.48ms. Allocated memory is still 73.4MB. Free memory was 37.5MB in the beginning and 51.2MB in the end (delta: -13.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-12 19:27:08,136 INFO L158 Benchmark]: RCFGBuilder took 806.16ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 48.1MB in the end (delta: 3.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2022-07-12 19:27:08,136 INFO L158 Benchmark]: TraceAbstraction took 34306.09ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 47.6MB in the beginning and 47.3MB in the end (delta: 301.3kB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2022-07-12 19:27:08,138 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 130.0MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 19:27:08,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.93ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 28.2MB in the beginning and 43.3MB in the end (delta: -15.1MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.85ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 37.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.48ms. Allocated memory is still 73.4MB. Free memory was 37.5MB in the beginning and 51.2MB in the end (delta: -13.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * RCFGBuilder took 806.16ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 48.1MB in the end (delta: 3.1MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * TraceAbstraction took 34306.09ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 47.6MB in the beginning and 47.3MB in the end (delta: 301.3kB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 130.0MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L705] CALL _BLAST_init() [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L705] RET _BLAST_init() [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L721] CALL stub_driver_init() [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L721] RET stub_driver_init() [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L767] CALL, EXPR FloppyPnp(devobj, pirp) [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L157] return (259); VAL [\old(DisketteExtension)=10, \old(Irp)=9, \old(myStatus)=3221225659, \old(PagingReferenceCount)=1, \old(pended)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__FloppyThread=14, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ObjAttributes=15, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=13, UNLOADED=0] [L256] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L262-L263] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1066] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1075] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1079] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1094] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=0, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L262-L263] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND FALSE !(disketteExtension__FloppyThread != 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1036] return (returnVal2); VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=16, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L281] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] RET, EXPR FloppyPnp(devobj, pirp) [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L814] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 667]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 320 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 34.2s, OverallIterations: 74, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11012 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10760 mSDsluCounter, 112056 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84363 mSDsCounter, 622 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7177 IncrementalHoareTripleChecker+Invalid, 7799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 622 mSolverCounterUnsat, 27693 mSDtfsCounter, 7177 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3250 GetRequests, 2828 SyntacticMatches, 0 SemanticMatches, 422 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=665occurred in iteration=22, InterpolantAutomatonStates: 441, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 73 MinimizatonAttempts, 1573 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3260 NumberOfCodeBlocks, 3260 NumberOfCodeBlocksAsserted, 74 NumberOfCheckSat, 3114 ConstructedInterpolants, 0 QuantifiedInterpolants, 7583 SizeOfPredicates, 146 NumberOfNonLiveVariables, 11315 ConjunctsInSsa, 396 ConjunctsInUnsatCore, 73 InterpolantComputations, 73 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 [2022-07-12 19:27:08,167 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