./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version eb692b52 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/forester-heap/dll-token-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 05:09:46,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 05:09:46,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 05:09:46,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 05:09:46,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 05:09:46,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 05:09:46,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 05:09:46,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 05:09:46,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 05:09:46,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 05:09:46,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 05:09:46,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 05:09:46,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 05:09:46,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 05:09:46,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 05:09:46,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 05:09:46,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 05:09:46,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 05:09:46,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 05:09:46,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 05:09:46,755 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 05:09:46,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 05:09:46,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 05:09:46,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 05:09:46,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 05:09:46,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 05:09:46,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 05:09:46,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 05:09:46,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 05:09:46,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 05:09:46,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 05:09:46,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 05:09:46,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 05:09:46,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 05:09:46,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 05:09:46,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 05:09:46,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 05:09:46,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 05:09:46,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 05:09:46,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 05:09:46,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 05:09:46,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 05:09:46,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2022-07-20 05:09:46,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 05:09:46,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 05:09:46,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 05:09:46,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 05:09:46,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 05:09:46,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 05:09:46,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 05:09:46,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 05:09:46,804 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 05:09:46,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 05:09:46,804 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 05:09:46,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 05:09:46,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 05:09:46,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 05:09:46,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 05:09:46,805 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 05:09:46,805 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 05:09:46,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 05:09:46,806 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 05:09:46,806 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 05:09:46,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 05:09:46,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 05:09:46,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 05:09:46,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 05:09:46,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:09:46,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 05:09:46,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 05:09:46,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 05:09:46,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 05:09:46,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 [2022-07-20 05:09:47,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 05:09:47,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 05:09:47,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 05:09:47,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 05:09:47,057 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 05:09:47,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-token-2.i [2022-07-20 05:09:47,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04a38f9f/439096e7ff624962a04325563c567e92/FLAG438c4bc38 [2022-07-20 05:09:47,548 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 05:09:47,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-token-2.i [2022-07-20 05:09:47,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04a38f9f/439096e7ff624962a04325563c567e92/FLAG438c4bc38 [2022-07-20 05:09:47,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04a38f9f/439096e7ff624962a04325563c567e92 [2022-07-20 05:09:47,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 05:09:47,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 05:09:47,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 05:09:47,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 05:09:47,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 05:09:47,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:47,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4971eb6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47, skipping insertion in model container [2022-07-20 05:09:47,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:47,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 05:09:47,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 05:09:47,876 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/forester-heap/dll-token-2.i[22229,22242] [2022-07-20 05:09:47,886 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/forester-heap/dll-token-2.i[22398,22411] [2022-07-20 05:09:47,887 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/forester-heap/dll-token-2.i[22489,22502] [2022-07-20 05:09:47,890 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/forester-heap/dll-token-2.i[22571,22584] [2022-07-20 05:09:47,892 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/forester-heap/dll-token-2.i[22649,22662] [2022-07-20 05:09:47,894 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/forester-heap/dll-token-2.i[22795,22808] [2022-07-20 05:09:47,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:09:47,904 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 05:09:47,930 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/forester-heap/dll-token-2.i[22229,22242] [2022-07-20 05:09:47,939 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/forester-heap/dll-token-2.i[22398,22411] [2022-07-20 05:09:47,939 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/forester-heap/dll-token-2.i[22489,22502] [2022-07-20 05:09:47,940 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/forester-heap/dll-token-2.i[22571,22584] [2022-07-20 05:09:47,949 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/forester-heap/dll-token-2.i[22649,22662] [2022-07-20 05:09:47,950 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/forester-heap/dll-token-2.i[22795,22808] [2022-07-20 05:09:47,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:09:47,970 INFO L208 MainTranslator]: Completed translation [2022-07-20 05:09:47,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47 WrapperNode [2022-07-20 05:09:47,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 05:09:47,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 05:09:47,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 05:09:47,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 05:09:47,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,024 INFO L137 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2022-07-20 05:09:48,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 05:09:48,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 05:09:48,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 05:09:48,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 05:09:48,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 05:09:48,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 05:09:48,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 05:09:48,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 05:09:48,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (1/1) ... [2022-07-20 05:09:48,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:09:48,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 05:09:48,096 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) [2022-07-20 05:09:48,118 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 [2022-07-20 05:09:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 05:09:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 05:09:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 05:09:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 05:09:48,232 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 05:09:48,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 05:09:48,553 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 05:09:48,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 05:09:48,559 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-07-20 05:09:48,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:09:48 BoogieIcfgContainer [2022-07-20 05:09:48,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 05:09:48,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 05:09:48,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 05:09:48,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 05:09:48,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:09:47" (1/3) ... [2022-07-20 05:09:48,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cc07aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:09:48, skipping insertion in model container [2022-07-20 05:09:48,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:09:47" (2/3) ... [2022-07-20 05:09:48,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cc07aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:09:48, skipping insertion in model container [2022-07-20 05:09:48,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:09:48" (3/3) ... [2022-07-20 05:09:48,566 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2022-07-20 05:09:48,577 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 05:09:48,577 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2022-07-20 05:09:48,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 05:09:48,615 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@5aeb48c0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76469c4f [2022-07-20 05:09:48,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-07-20 05:09:48,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 2.23943661971831) internal successors, (159), 135 states have internal predecessors, (159), 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) [2022-07-20 05:09:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-20 05:09:48,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:48,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-20 05:09:48,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:48,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:48,626 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-07-20 05:09:48,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:48,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422107034] [2022-07-20 05:09:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:48,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:48,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:48,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422107034] [2022-07-20 05:09:48,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422107034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:48,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:48,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 05:09:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796642923] [2022-07-20 05:09:48,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:48,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 05:09:48,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:48,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 05:09:48,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 05:09:48,774 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 2.23943661971831) internal successors, (159), 135 states have internal predecessors, (159), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-20 05:09:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:48,912 INFO L93 Difference]: Finished difference Result 153 states and 156 transitions. [2022-07-20 05:09:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 05:09:48,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-07-20 05:09:48,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:48,923 INFO L225 Difference]: With dead ends: 153 [2022-07-20 05:09:48,923 INFO L226 Difference]: Without dead ends: 151 [2022-07-20 05:09:48,925 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 [2022-07-20 05:09:48,930 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 110 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:48,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 103 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:48,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-07-20 05:09:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 131. [2022-07-20 05:09:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 70 states have (on average 1.9) internal successors, (133), 130 states have internal predecessors, (133), 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) [2022-07-20 05:09:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2022-07-20 05:09:48,959 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 3 [2022-07-20 05:09:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:48,959 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2022-07-20 05:09:48,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-20 05:09:48,959 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2022-07-20 05:09:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-20 05:09:48,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:48,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-20 05:09:48,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 05:09:48,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-07-20 05:09:48,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:48,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179579794] [2022-07-20 05:09:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:48,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:49,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:49,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179579794] [2022-07-20 05:09:49,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179579794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:49,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:49,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 05:09:49,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719599941] [2022-07-20 05:09:49,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:49,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 05:09:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 05:09:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 05:09:49,013 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-20 05:09:49,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:49,108 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2022-07-20 05:09:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 05:09:49,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-07-20 05:09:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:49,112 INFO L225 Difference]: With dead ends: 156 [2022-07-20 05:09:49,113 INFO L226 Difference]: Without dead ends: 156 [2022-07-20 05:09:49,113 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 [2022-07-20 05:09:49,114 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 115 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:49,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 105 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-07-20 05:09:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2022-07-20 05:09:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 states have internal predecessors, (130), 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) [2022-07-20 05:09:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2022-07-20 05:09:49,122 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2022-07-20 05:09:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2022-07-20 05:09:49,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-20 05:09:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2022-07-20 05:09:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-20 05:09:49,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:49,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:49,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 05:09:49,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:49,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1837112020, now seen corresponding path program 1 times [2022-07-20 05:09:49,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:49,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16488976] [2022-07-20 05:09:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:49,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:49,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:49,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:49,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16488976] [2022-07-20 05:09:49,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16488976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:49,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:49,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 05:09:49,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362578471] [2022-07-20 05:09:49,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:49,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 05:09:49,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:49,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 05:09:49,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 05:09:49,209 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-20 05:09:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:49,421 INFO L93 Difference]: Finished difference Result 241 states and 245 transitions. [2022-07-20 05:09:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 05:09:49,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-07-20 05:09:49,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:49,423 INFO L225 Difference]: With dead ends: 241 [2022-07-20 05:09:49,423 INFO L226 Difference]: Without dead ends: 241 [2022-07-20 05:09:49,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:49,424 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 271 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:49,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 113 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 05:09:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-07-20 05:09:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 167. [2022-07-20 05:09:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.81651376146789) internal successors, (198), 166 states have internal predecessors, (198), 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) [2022-07-20 05:09:49,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 198 transitions. [2022-07-20 05:09:49,433 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 198 transitions. Word has length 9 [2022-07-20 05:09:49,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:49,433 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 198 transitions. [2022-07-20 05:09:49,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-20 05:09:49,433 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 198 transitions. [2022-07-20 05:09:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-20 05:09:49,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:49,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:49,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 05:09:49,434 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:49,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:49,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1837112019, now seen corresponding path program 1 times [2022-07-20 05:09:49,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:49,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026497705] [2022-07-20 05:09:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:49,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:49,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:49,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:49,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026497705] [2022-07-20 05:09:49,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026497705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:49,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:49,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 05:09:49,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547542406] [2022-07-20 05:09:49,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:49,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 05:09:49,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:49,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 05:09:49,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 05:09:49,471 INFO L87 Difference]: Start difference. First operand 167 states and 198 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-20 05:09:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:49,552 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2022-07-20 05:09:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 05:09:49,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-07-20 05:09:49,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:49,553 INFO L225 Difference]: With dead ends: 157 [2022-07-20 05:09:49,553 INFO L226 Difference]: Without dead ends: 157 [2022-07-20 05:09:49,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:49,554 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 181 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:49,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 74 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:49,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-07-20 05:09:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152. [2022-07-20 05:09:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 109 states have (on average 1.5321100917431192) internal successors, (167), 151 states have internal predecessors, (167), 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) [2022-07-20 05:09:49,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 167 transitions. [2022-07-20 05:09:49,560 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 167 transitions. Word has length 9 [2022-07-20 05:09:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:49,560 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 167 transitions. [2022-07-20 05:09:49,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-20 05:09:49,560 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 167 transitions. [2022-07-20 05:09:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-20 05:09:49,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:49,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:49,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 05:09:49,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:49,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1363413642, now seen corresponding path program 1 times [2022-07-20 05:09:49,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:49,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120864121] [2022-07-20 05:09:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:49,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:49,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120864121] [2022-07-20 05:09:49,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120864121] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:49,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:49,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 05:09:49,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209773173] [2022-07-20 05:09:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 05:09:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 05:09:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:49,622 INFO L87 Difference]: Start difference. First operand 152 states and 167 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-07-20 05:09:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:49,724 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2022-07-20 05:09:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 05:09:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-07-20 05:09:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:49,725 INFO L225 Difference]: With dead ends: 151 [2022-07-20 05:09:49,726 INFO L226 Difference]: Without dead ends: 151 [2022-07-20 05:09:49,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-20 05:09:49,727 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 6 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:49,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 278 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:49,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-07-20 05:09:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-07-20 05:09:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 150 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 05:09:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2022-07-20 05:09:49,731 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 12 [2022-07-20 05:09:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:49,731 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2022-07-20 05:09:49,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-07-20 05:09:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2022-07-20 05:09:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-20 05:09:49,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:49,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:49,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 05:09:49,732 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1363413643, now seen corresponding path program 1 times [2022-07-20 05:09:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:49,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672721616] [2022-07-20 05:09:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:49,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:49,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:49,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672721616] [2022-07-20 05:09:49,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672721616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:49,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:49,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 05:09:49,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750008672] [2022-07-20 05:09:49,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:49,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 05:09:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:49,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 05:09:49,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:49,773 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-07-20 05:09:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:49,865 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2022-07-20 05:09:49,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 05:09:49,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-07-20 05:09:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:49,866 INFO L225 Difference]: With dead ends: 150 [2022-07-20 05:09:49,866 INFO L226 Difference]: Without dead ends: 150 [2022-07-20 05:09:49,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-20 05:09:49,867 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 7 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:49,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 283 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:49,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-07-20 05:09:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-07-20 05:09:49,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 109 states have (on average 1.4954128440366972) internal successors, (163), 149 states have internal predecessors, (163), 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) [2022-07-20 05:09:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2022-07-20 05:09:49,871 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 12 [2022-07-20 05:09:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:49,871 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2022-07-20 05:09:49,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-07-20 05:09:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2022-07-20 05:09:49,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-20 05:09:49,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:49,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:49,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 05:09:49,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:49,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:49,873 INFO L85 PathProgramCache]: Analyzing trace with hash -896738186, now seen corresponding path program 1 times [2022-07-20 05:09:49,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:49,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598664743] [2022-07-20 05:09:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:49,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:49,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:49,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598664743] [2022-07-20 05:09:49,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598664743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:49,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:49,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 05:09:49,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647459148] [2022-07-20 05:09:49,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:49,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 05:09:49,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:49,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 05:09:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:49,914 INFO L87 Difference]: Start difference. First operand 150 states and 163 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-07-20 05:09:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:50,002 INFO L93 Difference]: Finished difference Result 149 states and 161 transitions. [2022-07-20 05:09:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 05:09:50,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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 [2022-07-20 05:09:50,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:50,004 INFO L225 Difference]: With dead ends: 149 [2022-07-20 05:09:50,004 INFO L226 Difference]: Without dead ends: 149 [2022-07-20 05:09:50,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-20 05:09:50,005 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 11 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:50,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 275 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-20 05:09:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-07-20 05:09:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 148 states have internal predecessors, (161), 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) [2022-07-20 05:09:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2022-07-20 05:09:50,022 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 14 [2022-07-20 05:09:50,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:50,022 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2022-07-20 05:09:50,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-07-20 05:09:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2022-07-20 05:09:50,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-20 05:09:50,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:50,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:50,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 05:09:50,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:50,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:50,024 INFO L85 PathProgramCache]: Analyzing trace with hash -896738185, now seen corresponding path program 1 times [2022-07-20 05:09:50,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:50,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891335500] [2022-07-20 05:09:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:50,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:50,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:50,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891335500] [2022-07-20 05:09:50,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891335500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:50,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:50,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 05:09:50,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001761931] [2022-07-20 05:09:50,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:50,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 05:09:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:50,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 05:09:50,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:50,109 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-07-20 05:09:50,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:50,207 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2022-07-20 05:09:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 05:09:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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 [2022-07-20 05:09:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:50,210 INFO L225 Difference]: With dead ends: 148 [2022-07-20 05:09:50,210 INFO L226 Difference]: Without dead ends: 148 [2022-07-20 05:09:50,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-20 05:09:50,211 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 4 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:50,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 273 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-20 05:09:50,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-07-20 05:09:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 109 states have (on average 1.4587155963302751) internal successors, (159), 147 states have internal predecessors, (159), 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) [2022-07-20 05:09:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 159 transitions. [2022-07-20 05:09:50,214 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 159 transitions. Word has length 14 [2022-07-20 05:09:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:50,215 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 159 transitions. [2022-07-20 05:09:50,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-07-20 05:09:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2022-07-20 05:09:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-20 05:09:50,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:50,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:50,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 05:09:50,216 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:50,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1546362871, now seen corresponding path program 1 times [2022-07-20 05:09:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:50,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193558359] [2022-07-20 05:09:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:50,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:50,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:50,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:50,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193558359] [2022-07-20 05:09:50,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193558359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:50,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:50,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 05:09:50,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033172850] [2022-07-20 05:09:50,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:50,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 05:09:50,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:50,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 05:09:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-20 05:09:50,298 INFO L87 Difference]: Start difference. First operand 148 states and 159 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 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) [2022-07-20 05:09:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:50,489 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2022-07-20 05:09:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 05:09:50,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 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 16 [2022-07-20 05:09:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:50,490 INFO L225 Difference]: With dead ends: 152 [2022-07-20 05:09:50,490 INFO L226 Difference]: Without dead ends: 152 [2022-07-20 05:09:50,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-07-20 05:09:50,494 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 184 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:50,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 188 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-07-20 05:09:50,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2022-07-20 05:09:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 146 states have internal predecessors, (158), 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) [2022-07-20 05:09:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2022-07-20 05:09:50,497 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 16 [2022-07-20 05:09:50,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:50,497 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2022-07-20 05:09:50,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 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) [2022-07-20 05:09:50,498 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2022-07-20 05:09:50,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-20 05:09:50,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:50,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:50,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 05:09:50,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:50,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1546362872, now seen corresponding path program 1 times [2022-07-20 05:09:50,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:50,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217427245] [2022-07-20 05:09:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:50,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:50,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:50,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217427245] [2022-07-20 05:09:50,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217427245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:50,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:50,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 05:09:50,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751447641] [2022-07-20 05:09:50,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:50,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 05:09:50,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:50,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 05:09:50,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-20 05:09:50,599 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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) [2022-07-20 05:09:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:50,987 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2022-07-20 05:09:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 05:09:50,988 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2022-07-20 05:09:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:50,989 INFO L225 Difference]: With dead ends: 149 [2022-07-20 05:09:50,989 INFO L226 Difference]: Without dead ends: 149 [2022-07-20 05:09:50,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2022-07-20 05:09:50,989 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 182 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:50,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 282 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 05:09:50,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-20 05:09:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2022-07-20 05:09:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 122 states have internal predecessors, (133), 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) [2022-07-20 05:09:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-07-20 05:09:50,992 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 16 [2022-07-20 05:09:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:50,992 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-07-20 05:09:50,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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) [2022-07-20 05:09:50,992 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-07-20 05:09:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-20 05:09:50,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:50,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:50,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 05:09:50,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:50,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:50,993 INFO L85 PathProgramCache]: Analyzing trace with hash -30672293, now seen corresponding path program 1 times [2022-07-20 05:09:50,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:50,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947862138] [2022-07-20 05:09:50,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:50,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:51,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:51,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947862138] [2022-07-20 05:09:51,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947862138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:51,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:51,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 05:09:51,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527074125] [2022-07-20 05:09:51,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:51,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 05:09:51,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 05:09:51,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 05:09:51,049 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-07-20 05:09:51,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:51,210 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2022-07-20 05:09:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 05:09:51,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 17 [2022-07-20 05:09:51,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:51,211 INFO L225 Difference]: With dead ends: 126 [2022-07-20 05:09:51,211 INFO L226 Difference]: Without dead ends: 126 [2022-07-20 05:09:51,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-20 05:09:51,212 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 63 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:51,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 253 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:51,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-07-20 05:09:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2022-07-20 05:09:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 121 states have internal predecessors, (132), 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) [2022-07-20 05:09:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2022-07-20 05:09:51,215 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 17 [2022-07-20 05:09:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:51,215 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2022-07-20 05:09:51,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-07-20 05:09:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2022-07-20 05:09:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-20 05:09:51,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:51,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:51,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 05:09:51,216 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash -30672292, now seen corresponding path program 1 times [2022-07-20 05:09:51,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:51,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360282999] [2022-07-20 05:09:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:51,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:51,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360282999] [2022-07-20 05:09:51,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360282999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:51,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:51,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 05:09:51,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61515621] [2022-07-20 05:09:51,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:51,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 05:09:51,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:51,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 05:09:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 05:09:51,292 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-07-20 05:09:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:51,480 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2022-07-20 05:09:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 05:09:51,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 17 [2022-07-20 05:09:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:51,481 INFO L225 Difference]: With dead ends: 125 [2022-07-20 05:09:51,481 INFO L226 Difference]: Without dead ends: 125 [2022-07-20 05:09:51,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-20 05:09:51,482 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 62 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:51,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 263 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-07-20 05:09:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2022-07-20 05:09:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 93 states have (on average 1.4086021505376345) internal successors, (131), 120 states have internal predecessors, (131), 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) [2022-07-20 05:09:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2022-07-20 05:09:51,484 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 17 [2022-07-20 05:09:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:51,484 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2022-07-20 05:09:51,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-07-20 05:09:51,484 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2022-07-20 05:09:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-20 05:09:51,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:51,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:09:51,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 05:09:51,485 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash -3964873, now seen corresponding path program 1 times [2022-07-20 05:09:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:51,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557572140] [2022-07-20 05:09:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:51,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:51,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:51,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557572140] [2022-07-20 05:09:51,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557572140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:51,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:51,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 05:09:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945599359] [2022-07-20 05:09:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:51,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 05:09:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 05:09:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-20 05:09:51,555 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-07-20 05:09:51,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:51,629 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2022-07-20 05:09:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 05:09:51,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-07-20 05:09:51,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:51,631 INFO L225 Difference]: With dead ends: 123 [2022-07-20 05:09:51,631 INFO L226 Difference]: Without dead ends: 123 [2022-07-20 05:09:51,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-07-20 05:09:51,632 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 153 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:51,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 113 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-07-20 05:09:51,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2022-07-20 05:09:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 92 states have (on average 1.4021739130434783) internal successors, (129), 118 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 05:09:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2022-07-20 05:09:51,635 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 18 [2022-07-20 05:09:51,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:51,635 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2022-07-20 05:09:51,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-07-20 05:09:51,635 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2022-07-20 05:09:51,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-20 05:09:51,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:51,638 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] [2022-07-20 05:09:51,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 05:09:51,638 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:51,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:51,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1069806106, now seen corresponding path program 1 times [2022-07-20 05:09:51,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:51,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843695102] [2022-07-20 05:09:51,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:51,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:51,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:51,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843695102] [2022-07-20 05:09:51,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843695102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:51,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:51,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 05:09:51,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194939063] [2022-07-20 05:09:51,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:51,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 05:09:51,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:51,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 05:09:51,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 05:09:51,686 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-07-20 05:09:51,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:51,751 INFO L93 Difference]: Finished difference Result 181 states and 186 transitions. [2022-07-20 05:09:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 05:09:51,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2022-07-20 05:09:51,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:51,752 INFO L225 Difference]: With dead ends: 181 [2022-07-20 05:09:51,752 INFO L226 Difference]: Without dead ends: 181 [2022-07-20 05:09:51,752 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 [2022-07-20 05:09:51,754 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 177 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:51,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 135 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-20 05:09:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 117. [2022-07-20 05:09:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 91 states have (on average 1.3956043956043955) internal successors, (127), 116 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 05:09:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2022-07-20 05:09:51,757 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 20 [2022-07-20 05:09:51,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:51,757 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2022-07-20 05:09:51,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-07-20 05:09:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2022-07-20 05:09:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-20 05:09:51,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:51,758 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] [2022-07-20 05:09:51,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 05:09:51,758 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:51,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:51,758 INFO L85 PathProgramCache]: Analyzing trace with hash 684226449, now seen corresponding path program 1 times [2022-07-20 05:09:51,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:51,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695761507] [2022-07-20 05:09:51,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:51,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:51,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:51,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695761507] [2022-07-20 05:09:51,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695761507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:51,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:51,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 05:09:51,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077576123] [2022-07-20 05:09:51,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:51,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 05:09:51,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:51,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 05:09:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-07-20 05:09:51,990 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2022-07-20 05:09:52,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:52,298 INFO L93 Difference]: Finished difference Result 225 states and 229 transitions. [2022-07-20 05:09:52,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 05:09:52,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 25 [2022-07-20 05:09:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:52,299 INFO L225 Difference]: With dead ends: 225 [2022-07-20 05:09:52,299 INFO L226 Difference]: Without dead ends: 225 [2022-07-20 05:09:52,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-07-20 05:09:52,300 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 426 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:52,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 313 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 05:09:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-07-20 05:09:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 133. [2022-07-20 05:09:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 132 states have internal predecessors, (144), 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) [2022-07-20 05:09:52,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2022-07-20 05:09:52,302 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 25 [2022-07-20 05:09:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:52,302 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2022-07-20 05:09:52,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2022-07-20 05:09:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2022-07-20 05:09:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-20 05:09:52,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:52,306 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] [2022-07-20 05:09:52,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 05:09:52,307 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:52,307 INFO L85 PathProgramCache]: Analyzing trace with hash 684193678, now seen corresponding path program 1 times [2022-07-20 05:09:52,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:52,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943456135] [2022-07-20 05:09:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:52,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:52,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:52,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943456135] [2022-07-20 05:09:52,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943456135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:52,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:52,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 05:09:52,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956326044] [2022-07-20 05:09:52,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:52,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 05:09:52,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:52,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 05:09:52,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:09:52,359 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-07-20 05:09:52,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:52,432 INFO L93 Difference]: Finished difference Result 131 states and 141 transitions. [2022-07-20 05:09:52,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 05:09:52,433 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), 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 25 [2022-07-20 05:09:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:52,433 INFO L225 Difference]: With dead ends: 131 [2022-07-20 05:09:52,434 INFO L226 Difference]: Without dead ends: 131 [2022-07-20 05:09:52,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 05:09:52,434 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 8 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:52,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 236 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 05:09:52,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-07-20 05:09:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-07-20 05:09:52,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 106 states have (on average 1.330188679245283) internal successors, (141), 130 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 05:09:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 141 transitions. [2022-07-20 05:09:52,438 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 141 transitions. Word has length 25 [2022-07-20 05:09:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:52,438 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 141 transitions. [2022-07-20 05:09:52,438 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), 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) [2022-07-20 05:09:52,438 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 141 transitions. [2022-07-20 05:09:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-20 05:09:52,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:52,440 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] [2022-07-20 05:09:52,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 05:09:52,441 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:52,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1096862923, now seen corresponding path program 1 times [2022-07-20 05:09:52,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:52,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247765925] [2022-07-20 05:09:52,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:52,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:52,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:52,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:52,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247765925] [2022-07-20 05:09:52,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247765925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:52,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:52,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-20 05:09:52,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931167634] [2022-07-20 05:09:52,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:52,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 05:09:52,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 05:09:52,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-20 05:09:52,588 INFO L87 Difference]: Start difference. First operand 131 states and 141 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-07-20 05:09:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:52,933 INFO L93 Difference]: Finished difference Result 185 states and 190 transitions. [2022-07-20 05:09:52,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 05:09:52,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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 28 [2022-07-20 05:09:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:52,934 INFO L225 Difference]: With dead ends: 185 [2022-07-20 05:09:52,934 INFO L226 Difference]: Without dead ends: 185 [2022-07-20 05:09:52,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2022-07-20 05:09:52,935 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 178 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:52,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 340 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 05:09:52,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-20 05:09:52,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 137. [2022-07-20 05:09:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.3214285714285714) internal successors, (148), 136 states have internal predecessors, (148), 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) [2022-07-20 05:09:52,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 148 transitions. [2022-07-20 05:09:52,937 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 148 transitions. Word has length 28 [2022-07-20 05:09:52,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:52,937 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 148 transitions. [2022-07-20 05:09:52,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-07-20 05:09:52,938 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 148 transitions. [2022-07-20 05:09:52,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-20 05:09:52,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:52,938 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] [2022-07-20 05:09:52,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 05:09:52,938 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:52,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:52,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1096862922, now seen corresponding path program 1 times [2022-07-20 05:09:52,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:52,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477215492] [2022-07-20 05:09:52,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:52,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:09:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:09:53,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:09:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477215492] [2022-07-20 05:09:53,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477215492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:09:53,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:09:53,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-20 05:09:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322367216] [2022-07-20 05:09:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:09:53,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 05:09:53,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:09:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 05:09:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-20 05:09:53,091 INFO L87 Difference]: Start difference. First operand 137 states and 148 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-07-20 05:09:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:09:53,449 INFO L93 Difference]: Finished difference Result 217 states and 221 transitions. [2022-07-20 05:09:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-20 05:09:53,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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 28 [2022-07-20 05:09:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:09:53,450 INFO L225 Difference]: With dead ends: 217 [2022-07-20 05:09:53,450 INFO L226 Difference]: Without dead ends: 217 [2022-07-20 05:09:53,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2022-07-20 05:09:53,451 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 217 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 05:09:53,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 341 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 05:09:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-07-20 05:09:53,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 137. [2022-07-20 05:09:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.3125) internal successors, (147), 136 states have internal predecessors, (147), 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) [2022-07-20 05:09:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 147 transitions. [2022-07-20 05:09:53,454 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 147 transitions. Word has length 28 [2022-07-20 05:09:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:09:53,454 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 147 transitions. [2022-07-20 05:09:53,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-07-20 05:09:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2022-07-20 05:09:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-20 05:09:53,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:09:53,454 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] [2022-07-20 05:09:53,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 05:09:53,455 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 61 more)] === [2022-07-20 05:09:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:09:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1818276907, now seen corresponding path program 1 times [2022-07-20 05:09:53,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:09:53,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452106134] [2022-07-20 05:09:53,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:09:53,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:09:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 05:09:53,471 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 05:09:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 05:09:53,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-20 05:09:53,498 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 05:09:53,499 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK (63 of 64 remaining) [2022-07-20 05:09:53,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 64 remaining) [2022-07-20 05:09:53,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 64 remaining) [2022-07-20 05:09:53,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (46 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 64 remaining) [2022-07-20 05:09:53,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 64 remaining) [2022-07-20 05:09:53,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK (33 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (28 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 64 remaining) [2022-07-20 05:09:53,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK (23 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 64 remaining) [2022-07-20 05:09:53,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE (14 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE (13 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE (12 of 64 remaining) [2022-07-20 05:09:53,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK (9 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE (6 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE (5 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE (4 of 64 remaining) [2022-07-20 05:09:53,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE (3 of 64 remaining) [2022-07-20 05:09:53,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE (2 of 64 remaining) [2022-07-20 05:09:53,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE (1 of 64 remaining) [2022-07-20 05:09:53,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK (0 of 64 remaining) [2022-07-20 05:09:53,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 05:09:53,511 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] [2022-07-20 05:09:53,515 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 05:09:53,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:09:53 BoogieIcfgContainer [2022-07-20 05:09:53,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 05:09:53,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 05:09:53,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 05:09:53,535 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 05:09:53,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:09:48" (3/4) ... [2022-07-20 05:09:53,536 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-20 05:09:53,559 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 05:09:53,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 05:09:53,560 INFO L158 Benchmark]: Toolchain (without parser) took 5954.91ms. Allocated memory was 96.5MB in the beginning and 161.5MB in the end (delta: 65.0MB). Free memory was 74.4MB in the beginning and 73.7MB in the end (delta: 649.0kB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,560 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 05:09:53,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.08ms. Allocated memory is still 96.5MB. Free memory was 74.2MB in the beginning and 56.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.17ms. Allocated memory is still 96.5MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,560 INFO L158 Benchmark]: Boogie Preprocessor took 35.47ms. Allocated memory is still 96.5MB. Free memory was 54.5MB in the beginning and 52.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,561 INFO L158 Benchmark]: RCFGBuilder took 498.43ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 52.6MB in the beginning and 98.4MB in the end (delta: -45.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,561 INFO L158 Benchmark]: TraceAbstraction took 4972.15ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.4MB in the beginning and 76.9MB in the end (delta: 21.5MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,561 INFO L158 Benchmark]: Witness Printer took 24.88ms. Allocated memory is still 161.5MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:09:53,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.08ms. Allocated memory is still 96.5MB. Free memory was 74.2MB in the beginning and 56.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.17ms. Allocated memory is still 96.5MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.47ms. Allocated memory is still 96.5MB. Free memory was 54.5MB in the beginning and 52.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.43ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 52.6MB in the beginning and 98.4MB in the end (delta: -45.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4972.15ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.4MB in the beginning and 76.9MB in the end (delta: 21.5MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 24.88ms. Allocated memory is still 161.5MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 1037]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) VAL [head={-1:0}] [L1006] head->prev = ((void*)0) VAL [head={-1:0}] [L1007] head->data = 0 VAL [head={-1:0}] [L1009] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 VAL [head={-1:0}, x={-1:0}] [L1022] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1023] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1023] x->next->prev = x VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] x->next->data = 2 VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1026] x = head VAL [head={-1:0}, x={-1:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1036] x = x->next [L1037] EXPR x->data VAL [head={-1:0}, x={-2:0}, x->data=2] [L1037] COND TRUE !(2 != x->data) [L1037] reach_error() VAL [head={-1:0}, x={-2:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1019]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1047]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1001]: 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 1 procedures, 136 locations, 64 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2355 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2355 mSDsluCounter, 3968 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2656 mSDsCounter, 300 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4215 IncrementalHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 300 mSolverCounterUnsat, 1312 mSDtfsCounter, 4215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=3, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 454 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 2023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 proved your program to be incorrect! [2022-07-20 05:09:53,596 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)