./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bf978f501147b566a0f6f3e817c934f24352e71 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bf978f501147b566a0f6f3e817c934f24352e71 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 07:50:14,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 07:50:14,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 07:50:14,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 07:50:14,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 07:50:14,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 07:50:14,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 07:50:14,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 07:50:14,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 07:50:14,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 07:50:14,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 07:50:14,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 07:50:14,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 07:50:14,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 07:50:14,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 07:50:14,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 07:50:14,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 07:50:14,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 07:50:14,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 07:50:14,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 07:50:14,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 07:50:14,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 07:50:14,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 07:50:14,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 07:50:14,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 07:50:14,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 07:50:14,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 07:50:14,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 07:50:14,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 07:50:14,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 07:50:14,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 07:50:14,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 07:50:14,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 07:50:14,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 07:50:14,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 07:50:14,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 07:50:14,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 07:50:14,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 07:50:14,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 07:50:14,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 07:50:14,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 07:50:14,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 07:50:14,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 07:50:14,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 07:50:14,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 07:50:14,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 07:50:14,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 07:50:14,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 07:50:14,745 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 07:50:14,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 07:50:14,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 07:50:14,746 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 07:50:14,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 07:50:14,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 07:50:14,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 07:50:14,747 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 07:50:14,747 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 07:50:14,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 07:50:14,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 07:50:14,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 07:50:14,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 07:50:14,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 07:50:14,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 07:50:14,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 07:50:14,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 07:50:14,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:50:14,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 07:50:14,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 07:50:14,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 07:50:14,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 07:50:14,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 07:50:14,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf978f501147b566a0f6f3e817c934f24352e71 [2021-08-27 07:50:15,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 07:50:15,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 07:50:15,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 07:50:15,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 07:50:15,092 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 07:50:15,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-27 07:50:15,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/386066694/1ca9af85d3264e6ba6a5e3b2740382b2/FLAG2a760e7f1 [2021-08-27 07:50:15,726 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 07:50:15,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-27 07:50:15,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/386066694/1ca9af85d3264e6ba6a5e3b2740382b2/FLAG2a760e7f1 [2021-08-27 07:50:16,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/386066694/1ca9af85d3264e6ba6a5e3b2740382b2 [2021-08-27 07:50:16,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 07:50:16,142 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 07:50:16,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 07:50:16,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 07:50:16,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 07:50:16,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18baf874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16, skipping insertion in model container [2021-08-27 07:50:16,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 07:50:16,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 07:50:16,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-27 07:50:16,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:50:16,417 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 07:50:16,501 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-27 07:50:16,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:50:16,514 INFO L208 MainTranslator]: Completed translation [2021-08-27 07:50:16,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16 WrapperNode [2021-08-27 07:50:16,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 07:50:16,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 07:50:16,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 07:50:16,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 07:50:16,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 07:50:16,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 07:50:16,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 07:50:16,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 07:50:16,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (1/1) ... [2021-08-27 07:50:16,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:50:16,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 07:50:16,594 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) [2021-08-27 07:50:16,618 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 [2021-08-27 07:50:16,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 07:50:16,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 07:50:16,643 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 07:50:16,644 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-08-27 07:50:16,644 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-08-27 07:50:16,645 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2021-08-27 07:50:16,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 07:50:16,645 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-08-27 07:50:16,645 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2021-08-27 07:50:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2021-08-27 07:50:16,647 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-08-27 07:50:16,647 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2021-08-27 07:50:16,647 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-08-27 07:50:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 07:50:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 07:50:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 07:50:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 07:50:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-08-27 07:50:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 07:50:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-08-27 07:50:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2021-08-27 07:50:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-08-27 07:50:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-08-27 07:50:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-08-27 07:50:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 07:50:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 07:50:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 07:50:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 07:50:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 07:50:16,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 07:50:17,045 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:17,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-08-27 07:50:17,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-08-27 07:50:17,223 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:17,282 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-27 07:50:17,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-27 07:50:17,368 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:17,380 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-08-27 07:50:17,380 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-08-27 07:50:17,385 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:17,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-08-27 07:50:17,451 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-08-27 07:50:17,453 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:17,471 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-08-27 07:50:17,471 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-08-27 07:50:17,475 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:17,495 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-27 07:50:17,496 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-27 07:50:17,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 07:50:17,529 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-27 07:50:17,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:17 BoogieIcfgContainer [2021-08-27 07:50:17,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 07:50:17,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 07:50:17,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 07:50:17,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 07:50:17,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 07:50:16" (1/3) ... [2021-08-27 07:50:17,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437c7c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:50:17, skipping insertion in model container [2021-08-27 07:50:17,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:16" (2/3) ... [2021-08-27 07:50:17,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437c7c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:50:17, skipping insertion in model container [2021-08-27 07:50:17,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:17" (3/3) ... [2021-08-27 07:50:17,539 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-08-27 07:50:17,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 07:50:17,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-27 07:50:17,581 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 07:50:17,587 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 07:50:17,587 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-27 07:50:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2021-08-27 07:50:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 07:50:17,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:17,613 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:17,613 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:17,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:17,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1216173165, now seen corresponding path program 1 times [2021-08-27 07:50:17,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:17,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098998768] [2021-08-27 07:50:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:17,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:17,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:17,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098998768] [2021-08-27 07:50:17,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098998768] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:17,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:17,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 07:50:17,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079808185] [2021-08-27 07:50:17,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:50:17,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:50:17,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:17,957 INFO L87 Difference]: Start difference. First operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:50:18,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:18,452 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2021-08-27 07:50:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:50:18,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-08-27 07:50:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:18,474 INFO L225 Difference]: With dead ends: 266 [2021-08-27 07:50:18,474 INFO L226 Difference]: Without dead ends: 259 [2021-08-27 07:50:18,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 102.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-08-27 07:50:18,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2021-08-27 07:50:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.5) internal successors, (264), 192 states have internal predecessors, (264), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-27 07:50:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 327 transitions. [2021-08-27 07:50:18,531 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 327 transitions. Word has length 15 [2021-08-27 07:50:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:18,531 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 327 transitions. [2021-08-27 07:50:18,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:50:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 327 transitions. [2021-08-27 07:50:18,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 07:50:18,532 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:18,532 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:18,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 07:50:18,533 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:18,534 INFO L82 PathProgramCache]: Analyzing trace with hash -650681863, now seen corresponding path program 1 times [2021-08-27 07:50:18,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:18,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973004999] [2021-08-27 07:50:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:18,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:18,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:18,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973004999] [2021-08-27 07:50:18,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973004999] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:18,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:18,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 07:50:18,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691267439] [2021-08-27 07:50:18,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:18,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:18,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:18,805 INFO L87 Difference]: Start difference. First operand 231 states and 327 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 07:50:19,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:19,593 INFO L93 Difference]: Finished difference Result 259 states and 367 transitions. [2021-08-27 07:50:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:19,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-08-27 07:50:19,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:19,595 INFO L225 Difference]: With dead ends: 259 [2021-08-27 07:50:19,595 INFO L226 Difference]: Without dead ends: 259 [2021-08-27 07:50:19,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-08-27 07:50:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2021-08-27 07:50:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 192 states have internal predecessors, (263), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-27 07:50:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2021-08-27 07:50:19,611 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2021-08-27 07:50:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:19,611 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2021-08-27 07:50:19,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 07:50:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2021-08-27 07:50:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 07:50:19,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:19,613 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:19,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 07:50:19,613 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:19,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:19,614 INFO L82 PathProgramCache]: Analyzing trace with hash 634702516, now seen corresponding path program 1 times [2021-08-27 07:50:19,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:19,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483241170] [2021-08-27 07:50:19,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:19,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:19,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:19,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:19,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:19,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483241170] [2021-08-27 07:50:19,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483241170] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:19,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:19,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:50:19,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833892654] [2021-08-27 07:50:19,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:50:19,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:50:19,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:50:19,815 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:20,866 INFO L93 Difference]: Finished difference Result 350 states and 478 transitions. [2021-08-27 07:50:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-08-27 07:50:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:20,870 INFO L225 Difference]: With dead ends: 350 [2021-08-27 07:50:20,870 INFO L226 Difference]: Without dead ends: 349 [2021-08-27 07:50:20,871 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 215.1ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:20,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-08-27 07:50:20,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2021-08-27 07:50:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 239 states have (on average 1.393305439330544) internal successors, (333), 243 states have internal predecessors, (333), 38 states have call successors, (38), 23 states have call predecessors, (38), 26 states have return successors, (44), 40 states have call predecessors, (44), 29 states have call successors, (44) [2021-08-27 07:50:20,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 415 transitions. [2021-08-27 07:50:20,889 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 415 transitions. Word has length 28 [2021-08-27 07:50:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:20,889 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 415 transitions. [2021-08-27 07:50:20,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 415 transitions. [2021-08-27 07:50:20,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 07:50:20,891 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:20,891 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:20,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 07:50:20,891 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:20,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:20,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2054471313, now seen corresponding path program 1 times [2021-08-27 07:50:20,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:20,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012967088] [2021-08-27 07:50:20,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:20,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:21,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:21,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012967088] [2021-08-27 07:50:21,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012967088] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:21,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:21,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:50:21,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312191460] [2021-08-27 07:50:21,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:50:21,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:21,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:50:21,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:50:21,121 INFO L87 Difference]: Start difference. First operand 304 states and 415 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:21,824 INFO L93 Difference]: Finished difference Result 368 states and 494 transitions. [2021-08-27 07:50:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-08-27 07:50:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:21,827 INFO L225 Difference]: With dead ends: 368 [2021-08-27 07:50:21,827 INFO L226 Difference]: Without dead ends: 368 [2021-08-27 07:50:21,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 208.6ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-08-27 07:50:21,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 344. [2021-08-27 07:50:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 280 states have (on average 1.3857142857142857) internal successors, (388), 282 states have internal predecessors, (388), 34 states have call successors, (34), 23 states have call predecessors, (34), 29 states have return successors, (44), 39 states have call predecessors, (44), 27 states have call successors, (44) [2021-08-27 07:50:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 466 transitions. [2021-08-27 07:50:21,841 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 466 transitions. Word has length 28 [2021-08-27 07:50:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:21,842 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 466 transitions. [2021-08-27 07:50:21,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 466 transitions. [2021-08-27 07:50:21,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 07:50:21,844 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:21,844 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:21,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-27 07:50:21,844 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:21,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:21,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1351706538, now seen corresponding path program 1 times [2021-08-27 07:50:21,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:21,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63188269] [2021-08-27 07:50:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:21,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:21,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:22,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:22,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63188269] [2021-08-27 07:50:22,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63188269] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:22,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:22,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 07:50:22,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375399781] [2021-08-27 07:50:22,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 07:50:22,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 07:50:22,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 07:50:22,010 INFO L87 Difference]: Start difference. First operand 344 states and 466 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:22,624 INFO L93 Difference]: Finished difference Result 343 states and 463 transitions. [2021-08-27 07:50:22,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:22,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-08-27 07:50:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:22,626 INFO L225 Difference]: With dead ends: 343 [2021-08-27 07:50:22,626 INFO L226 Difference]: Without dead ends: 343 [2021-08-27 07:50:22,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 140.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-27 07:50:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-08-27 07:50:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-08-27 07:50:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 280 states have (on average 1.3785714285714286) internal successors, (386), 281 states have internal predecessors, (386), 33 states have call successors, (33), 23 states have call predecessors, (33), 29 states have return successors, (44), 39 states have call predecessors, (44), 27 states have call successors, (44) [2021-08-27 07:50:22,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2021-08-27 07:50:22,639 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 38 [2021-08-27 07:50:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:22,639 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2021-08-27 07:50:22,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2021-08-27 07:50:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:50:22,642 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:22,642 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:22,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 07:50:22,643 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:22,643 INFO L82 PathProgramCache]: Analyzing trace with hash 136406623, now seen corresponding path program 1 times [2021-08-27 07:50:22,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:22,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571915187] [2021-08-27 07:50:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:22,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-27 07:50:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:22,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:22,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571915187] [2021-08-27 07:50:22,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571915187] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:22,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:22,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:50:22,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20573233] [2021-08-27 07:50:22,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:22,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:22,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:22,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:22,824 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 07:50:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:23,596 INFO L93 Difference]: Finished difference Result 325 states and 431 transitions. [2021-08-27 07:50:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:50:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2021-08-27 07:50:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:23,602 INFO L225 Difference]: With dead ends: 325 [2021-08-27 07:50:23,602 INFO L226 Difference]: Without dead ends: 325 [2021-08-27 07:50:23,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 263.0ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:23,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-27 07:50:23,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2021-08-27 07:50:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 246 states have (on average 1.3699186991869918) internal successors, (337), 247 states have internal predecessors, (337), 30 states have call successors, (30), 21 states have call predecessors, (30), 27 states have return successors, (39), 36 states have call predecessors, (39), 24 states have call successors, (39) [2021-08-27 07:50:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2021-08-27 07:50:23,616 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 46 [2021-08-27 07:50:23,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:23,618 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2021-08-27 07:50:23,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 07:50:23,618 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2021-08-27 07:50:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-27 07:50:23,620 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:23,620 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:23,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 07:50:23,621 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:23,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:23,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1699015048, now seen corresponding path program 1 times [2021-08-27 07:50:23,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:23,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324149011] [2021-08-27 07:50:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:23,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-08-27 07:50:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:50:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:23,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:23,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324149011] [2021-08-27 07:50:23,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324149011] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:23,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:23,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:50:23,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432290238] [2021-08-27 07:50:23,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:50:23,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:23,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:50:23,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:23,910 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:25,144 INFO L93 Difference]: Finished difference Result 326 states and 430 transitions. [2021-08-27 07:50:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:25,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2021-08-27 07:50:25,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:25,146 INFO L225 Difference]: With dead ends: 326 [2021-08-27 07:50:25,146 INFO L226 Difference]: Without dead ends: 325 [2021-08-27 07:50:25,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 498.0ms TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2021-08-27 07:50:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-27 07:50:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2021-08-27 07:50:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.3615384615384616) internal successors, (354), 260 states have internal predecessors, (354), 30 states have call successors, (30), 21 states have call predecessors, (30), 29 states have return successors, (41), 38 states have call predecessors, (41), 24 states have call successors, (41) [2021-08-27 07:50:25,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 425 transitions. [2021-08-27 07:50:25,155 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 425 transitions. Word has length 45 [2021-08-27 07:50:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:25,155 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 425 transitions. [2021-08-27 07:50:25,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 425 transitions. [2021-08-27 07:50:25,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:50:25,157 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:25,157 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:25,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 07:50:25,158 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:25,158 INFO L82 PathProgramCache]: Analyzing trace with hash 750548217, now seen corresponding path program 1 times [2021-08-27 07:50:25,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:25,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229124689] [2021-08-27 07:50:25,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:25,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-08-27 07:50:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:50:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:25,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:25,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229124689] [2021-08-27 07:50:25,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229124689] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:25,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:25,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:50:25,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883455253] [2021-08-27 07:50:25,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:50:25,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:50:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:25,404 INFO L87 Difference]: Start difference. First operand 320 states and 425 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:26,505 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2021-08-27 07:50:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:26,506 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2021-08-27 07:50:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:26,508 INFO L225 Difference]: With dead ends: 325 [2021-08-27 07:50:26,508 INFO L226 Difference]: Without dead ends: 325 [2021-08-27 07:50:26,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 494.1ms TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2021-08-27 07:50:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-27 07:50:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2021-08-27 07:50:26,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.3576923076923078) internal successors, (353), 260 states have internal predecessors, (353), 30 states have call successors, (30), 21 states have call predecessors, (30), 29 states have return successors, (41), 38 states have call predecessors, (41), 24 states have call successors, (41) [2021-08-27 07:50:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 424 transitions. [2021-08-27 07:50:26,516 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 424 transitions. Word has length 46 [2021-08-27 07:50:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:26,516 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 424 transitions. [2021-08-27 07:50:26,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 424 transitions. [2021-08-27 07:50:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 07:50:26,518 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:26,518 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:26,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-27 07:50:26,518 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:26,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1580928350, now seen corresponding path program 1 times [2021-08-27 07:50:26,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:26,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683561139] [2021-08-27 07:50:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:26,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:26,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-08-27 07:50:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:26,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:50:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:26,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:26,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:26,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683561139] [2021-08-27 07:50:26,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683561139] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:26,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:26,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:50:26,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483281968] [2021-08-27 07:50:26,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:26,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:26,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:26,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:26,684 INFO L87 Difference]: Start difference. First operand 320 states and 424 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:27,212 INFO L93 Difference]: Finished difference Result 314 states and 412 transitions. [2021-08-27 07:50:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:50:27,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-08-27 07:50:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:27,214 INFO L225 Difference]: With dead ends: 314 [2021-08-27 07:50:27,214 INFO L226 Difference]: Without dead ends: 272 [2021-08-27 07:50:27,215 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 193.7ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:27,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-08-27 07:50:27,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 242. [2021-08-27 07:50:27,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.378787878787879) internal successors, (273), 201 states have internal predecessors, (273), 27 states have call successors, (27), 19 states have call predecessors, (27), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2021-08-27 07:50:27,222 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 47 [2021-08-27 07:50:27,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:27,222 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2021-08-27 07:50:27,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2021-08-27 07:50:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:27,224 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:27,224 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:27,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-27 07:50:27,224 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:27,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:27,225 INFO L82 PathProgramCache]: Analyzing trace with hash 479956528, now seen corresponding path program 1 times [2021-08-27 07:50:27,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:27,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378086789] [2021-08-27 07:50:27,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:27,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-08-27 07:50:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-08-27 07:50:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:27,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:27,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378086789] [2021-08-27 07:50:27,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378086789] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:27,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:27,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:50:27,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953285263] [2021-08-27 07:50:27,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:27,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:27,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:27,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:27,384 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:28,034 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2021-08-27 07:50:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:50:28,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2021-08-27 07:50:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:28,036 INFO L225 Difference]: With dead ends: 240 [2021-08-27 07:50:28,036 INFO L226 Difference]: Without dead ends: 240 [2021-08-27 07:50:28,037 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 170.1ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-08-27 07:50:28,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-08-27 07:50:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3705583756345177) internal successors, (270), 199 states have internal predecessors, (270), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2021-08-27 07:50:28,043 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2021-08-27 07:50:28,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:28,043 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2021-08-27 07:50:28,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2021-08-27 07:50:28,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 07:50:28,045 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:28,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:28,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-27 07:50:28,045 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:28,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1828872474, now seen corresponding path program 1 times [2021-08-27 07:50:28,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:28,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568432609] [2021-08-27 07:50:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:28,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-27 07:50:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:28,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:28,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568432609] [2021-08-27 07:50:28,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568432609] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:28,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:28,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:50:28,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117672524] [2021-08-27 07:50:28,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:28,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:28,300 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:50:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:29,355 INFO L93 Difference]: Finished difference Result 243 states and 317 transitions. [2021-08-27 07:50:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 07:50:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 51 [2021-08-27 07:50:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:29,357 INFO L225 Difference]: With dead ends: 243 [2021-08-27 07:50:29,357 INFO L226 Difference]: Without dead ends: 243 [2021-08-27 07:50:29,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 574.7ms TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:50:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-08-27 07:50:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2021-08-27 07:50:29,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3604060913705585) internal successors, (268), 199 states have internal predecessors, (268), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2021-08-27 07:50:29,363 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 51 [2021-08-27 07:50:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:29,364 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2021-08-27 07:50:29,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:50:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2021-08-27 07:50:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:29,365 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:29,365 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:29,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-27 07:50:29,366 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:29,366 INFO L82 PathProgramCache]: Analyzing trace with hash -2141770251, now seen corresponding path program 1 times [2021-08-27 07:50:29,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:29,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297564746] [2021-08-27 07:50:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:29,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-27 07:50:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:29,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:29,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297564746] [2021-08-27 07:50:29,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297564746] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:29,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:29,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:50:29,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608645004] [2021-08-27 07:50:29,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:29,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:29,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:29,544 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:30,192 INFO L93 Difference]: Finished difference Result 253 states and 329 transitions. [2021-08-27 07:50:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 07:50:30,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-08-27 07:50:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:30,193 INFO L225 Difference]: With dead ends: 253 [2021-08-27 07:50:30,193 INFO L226 Difference]: Without dead ends: 253 [2021-08-27 07:50:30,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 211.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-08-27 07:50:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2021-08-27 07:50:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 200 states have (on average 1.36) internal successors, (272), 202 states have internal predecessors, (272), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 319 transitions. [2021-08-27 07:50:30,198 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 319 transitions. Word has length 53 [2021-08-27 07:50:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:30,198 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 319 transitions. [2021-08-27 07:50:30,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 319 transitions. [2021-08-27 07:50:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:30,200 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:30,200 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:30,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-27 07:50:30,200 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:30,201 INFO L82 PathProgramCache]: Analyzing trace with hash 159052339, now seen corresponding path program 1 times [2021-08-27 07:50:30,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:30,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799510828] [2021-08-27 07:50:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:30,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-27 07:50:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:30,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:30,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799510828] [2021-08-27 07:50:30,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799510828] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:30,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:30,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:50:30,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949917947] [2021-08-27 07:50:30,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:30,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:30,453 INFO L87 Difference]: Start difference. First operand 243 states and 319 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:31,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:31,126 INFO L93 Difference]: Finished difference Result 285 states and 365 transitions. [2021-08-27 07:50:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:50:31,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2021-08-27 07:50:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:31,128 INFO L225 Difference]: With dead ends: 285 [2021-08-27 07:50:31,128 INFO L226 Difference]: Without dead ends: 285 [2021-08-27 07:50:31,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 450.3ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:31,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-08-27 07:50:31,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 277. [2021-08-27 07:50:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 227 states have (on average 1.3171806167400881) internal successors, (299), 224 states have internal predecessors, (299), 26 states have call successors, (26), 19 states have call predecessors, (26), 23 states have return successors, (33), 33 states have call predecessors, (33), 20 states have call successors, (33) [2021-08-27 07:50:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 358 transitions. [2021-08-27 07:50:31,135 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 358 transitions. Word has length 53 [2021-08-27 07:50:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:31,135 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 358 transitions. [2021-08-27 07:50:31,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 358 transitions. [2021-08-27 07:50:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:31,136 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:31,137 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:31,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-27 07:50:31,137 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:31,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:31,137 INFO L82 PathProgramCache]: Analyzing trace with hash 305745141, now seen corresponding path program 1 times [2021-08-27 07:50:31,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:31,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648455118] [2021-08-27 07:50:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:31,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-27 07:50:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-27 07:50:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:31,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:31,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648455118] [2021-08-27 07:50:31,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648455118] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:31,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:31,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-27 07:50:31,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144928019] [2021-08-27 07:50:31,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:50:31,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:50:31,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:50:31,322 INFO L87 Difference]: Start difference. First operand 277 states and 358 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:32,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:32,050 INFO L93 Difference]: Finished difference Result 291 states and 372 transitions. [2021-08-27 07:50:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 07:50:32,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-08-27 07:50:32,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:32,052 INFO L225 Difference]: With dead ends: 291 [2021-08-27 07:50:32,052 INFO L226 Difference]: Without dead ends: 238 [2021-08-27 07:50:32,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 127.7ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:50:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-27 07:50:32,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-08-27 07:50:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 194 states have (on average 1.3144329896907216) internal successors, (255), 191 states have internal predecessors, (255), 24 states have call successors, (24), 17 states have call predecessors, (24), 19 states have return successors, (29), 29 states have call predecessors, (29), 18 states have call successors, (29) [2021-08-27 07:50:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 308 transitions. [2021-08-27 07:50:32,058 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 308 transitions. Word has length 53 [2021-08-27 07:50:32,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:32,058 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 308 transitions. [2021-08-27 07:50:32,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 308 transitions. [2021-08-27 07:50:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-27 07:50:32,060 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:32,060 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:32,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-27 07:50:32,060 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:32,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1690938736, now seen corresponding path program 1 times [2021-08-27 07:50:32,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:32,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666272109] [2021-08-27 07:50:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:32,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-27 07:50:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:32,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:32,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666272109] [2021-08-27 07:50:32,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666272109] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:32,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:32,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:50:32,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127769999] [2021-08-27 07:50:32,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:32,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:32,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:32,268 INFO L87 Difference]: Start difference. First operand 238 states and 308 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:33,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:33,079 INFO L93 Difference]: Finished difference Result 275 states and 356 transitions. [2021-08-27 07:50:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:50:33,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2021-08-27 07:50:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:33,081 INFO L225 Difference]: With dead ends: 275 [2021-08-27 07:50:33,081 INFO L226 Difference]: Without dead ends: 275 [2021-08-27 07:50:33,081 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 307.8ms TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-08-27 07:50:33,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-08-27 07:50:33,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 253. [2021-08-27 07:50:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 207 states have (on average 1.3091787439613527) internal successors, (271), 204 states have internal predecessors, (271), 25 states have call successors, (25), 17 states have call predecessors, (25), 20 states have return successors, (31), 31 states have call predecessors, (31), 19 states have call successors, (31) [2021-08-27 07:50:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 327 transitions. [2021-08-27 07:50:33,089 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 327 transitions. Word has length 57 [2021-08-27 07:50:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:33,089 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 327 transitions. [2021-08-27 07:50:33,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 327 transitions. [2021-08-27 07:50:33,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-27 07:50:33,091 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:33,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:33,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-27 07:50:33,091 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:33,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1997036863, now seen corresponding path program 1 times [2021-08-27 07:50:33,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:33,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65506383] [2021-08-27 07:50:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:33,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-27 07:50:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:33,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:33,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65506383] [2021-08-27 07:50:33,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65506383] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:33,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:33,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-27 07:50:33,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819335041] [2021-08-27 07:50:33,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:33,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:33,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:33,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:33,299 INFO L87 Difference]: Start difference. First operand 253 states and 327 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:33,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:33,980 INFO L93 Difference]: Finished difference Result 266 states and 344 transitions. [2021-08-27 07:50:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:50:33,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2021-08-27 07:50:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:33,983 INFO L225 Difference]: With dead ends: 266 [2021-08-27 07:50:33,983 INFO L226 Difference]: Without dead ends: 259 [2021-08-27 07:50:33,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 216.4ms TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-08-27 07:50:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 247. [2021-08-27 07:50:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 202 states have (on average 1.306930693069307) internal successors, (264), 199 states have internal predecessors, (264), 24 states have call successors, (24), 17 states have call predecessors, (24), 20 states have return successors, (30), 30 states have call predecessors, (30), 18 states have call successors, (30) [2021-08-27 07:50:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 318 transitions. [2021-08-27 07:50:33,991 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 318 transitions. Word has length 57 [2021-08-27 07:50:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:33,991 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 318 transitions. [2021-08-27 07:50:33,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 318 transitions. [2021-08-27 07:50:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-27 07:50:33,992 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:33,993 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:33,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-27 07:50:33,993 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:33,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:33,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1650215593, now seen corresponding path program 1 times [2021-08-27 07:50:33,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:33,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037434951] [2021-08-27 07:50:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:33,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:50:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:34,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:34,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037434951] [2021-08-27 07:50:34,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037434951] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:34,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:34,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:50:34,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015455592] [2021-08-27 07:50:34,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:50:34,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:34,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:50:34,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:34,214 INFO L87 Difference]: Start difference. First operand 247 states and 318 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:34,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:34,976 INFO L93 Difference]: Finished difference Result 269 states and 340 transitions. [2021-08-27 07:50:34,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:34,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2021-08-27 07:50:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:34,977 INFO L225 Difference]: With dead ends: 269 [2021-08-27 07:50:34,977 INFO L226 Difference]: Without dead ends: 241 [2021-08-27 07:50:34,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:34,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-08-27 07:50:34,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-08-27 07:50:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 197 states have (on average 1.3096446700507614) internal successors, (258), 195 states have internal predecessors, (258), 23 states have call successors, (23), 17 states have call predecessors, (23), 20 states have return successors, (28), 28 states have call predecessors, (28), 17 states have call successors, (28) [2021-08-27 07:50:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 309 transitions. [2021-08-27 07:50:34,984 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 309 transitions. Word has length 54 [2021-08-27 07:50:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:34,984 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 309 transitions. [2021-08-27 07:50:34,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 309 transitions. [2021-08-27 07:50:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 07:50:34,986 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:34,986 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:34,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-27 07:50:34,986 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:34,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1570272846, now seen corresponding path program 1 times [2021-08-27 07:50:34,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:34,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047710306] [2021-08-27 07:50:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:34,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-27 07:50:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 07:50:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-27 07:50:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:35,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:35,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047710306] [2021-08-27 07:50:35,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047710306] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:35,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:35,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-27 07:50:35,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055865309] [2021-08-27 07:50:35,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 07:50:35,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:35,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 07:50:35,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:35,221 INFO L87 Difference]: Start difference. First operand 241 states and 309 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:36,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:36,025 INFO L93 Difference]: Finished difference Result 255 states and 323 transitions. [2021-08-27 07:50:36,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:50:36,025 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-08-27 07:50:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:36,026 INFO L225 Difference]: With dead ends: 255 [2021-08-27 07:50:36,027 INFO L226 Difference]: Without dead ends: 238 [2021-08-27 07:50:36,028 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 160.2ms TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-27 07:50:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-08-27 07:50:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 22 states have call successors, (22), 17 states have call predecessors, (22), 20 states have return successors, (26), 26 states have call predecessors, (26), 16 states have call successors, (26) [2021-08-27 07:50:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 303 transitions. [2021-08-27 07:50:36,035 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 303 transitions. Word has length 56 [2021-08-27 07:50:36,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:36,036 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 303 transitions. [2021-08-27 07:50:36,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 303 transitions. [2021-08-27 07:50:36,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 07:50:36,037 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:36,037 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:36,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-27 07:50:36,038 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:36,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:36,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1135084193, now seen corresponding path program 1 times [2021-08-27 07:50:36,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:36,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178319781] [2021-08-27 07:50:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:36,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-27 07:50:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 07:50:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-27 07:50:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:36,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:36,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178319781] [2021-08-27 07:50:36,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178319781] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:36,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:36,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-27 07:50:36,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120652383] [2021-08-27 07:50:36,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 07:50:36,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 07:50:36,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:50:36,269 INFO L87 Difference]: Start difference. First operand 238 states and 303 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:36,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:36,806 INFO L93 Difference]: Finished difference Result 232 states and 294 transitions. [2021-08-27 07:50:36,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:50:36,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-08-27 07:50:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:36,808 INFO L225 Difference]: With dead ends: 232 [2021-08-27 07:50:36,808 INFO L226 Difference]: Without dead ends: 232 [2021-08-27 07:50:36,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 113.7ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-27 07:50:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-08-27 07:50:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-08-27 07:50:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 189 states have (on average 1.3015873015873016) internal successors, (246), 188 states have internal predecessors, (246), 22 states have call successors, (22), 17 states have call predecessors, (22), 20 states have return successors, (26), 26 states have call predecessors, (26), 16 states have call successors, (26) [2021-08-27 07:50:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 294 transitions. [2021-08-27 07:50:36,815 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 294 transitions. Word has length 58 [2021-08-27 07:50:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:36,815 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 294 transitions. [2021-08-27 07:50:36,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 294 transitions. [2021-08-27 07:50:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 07:50:36,816 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:36,817 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:36,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-27 07:50:36,817 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:36,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1689207293, now seen corresponding path program 1 times [2021-08-27 07:50:36,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:36,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403156435] [2021-08-27 07:50:36,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:36,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:50:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-08-27 07:50:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:37,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:37,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403156435] [2021-08-27 07:50:37,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403156435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:37,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:37,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-27 07:50:37,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383112431] [2021-08-27 07:50:37,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 07:50:37,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:37,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 07:50:37,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:50:37,053 INFO L87 Difference]: Start difference. First operand 232 states and 294 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:37,987 INFO L93 Difference]: Finished difference Result 318 states and 387 transitions. [2021-08-27 07:50:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 07:50:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2021-08-27 07:50:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:37,989 INFO L225 Difference]: With dead ends: 318 [2021-08-27 07:50:37,989 INFO L226 Difference]: Without dead ends: 294 [2021-08-27 07:50:37,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 423.1ms TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-08-27 07:50:37,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-08-27 07:50:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 239. [2021-08-27 07:50:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 194 states have (on average 1.2938144329896908) internal successors, (251), 195 states have internal predecessors, (251), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (30), 26 states have call predecessors, (30), 16 states have call successors, (30) [2021-08-27 07:50:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 303 transitions. [2021-08-27 07:50:37,996 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 303 transitions. Word has length 55 [2021-08-27 07:50:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:37,996 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 303 transitions. [2021-08-27 07:50:37,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 303 transitions. [2021-08-27 07:50:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 07:50:37,997 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:37,997 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:37,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-27 07:50:37,998 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:37,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:37,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1776480712, now seen corresponding path program 1 times [2021-08-27 07:50:37,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:37,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007400917] [2021-08-27 07:50:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:37,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:50:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-08-27 07:50:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:38,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:38,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007400917] [2021-08-27 07:50:38,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007400917] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:38,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:38,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-27 07:50:38,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568222063] [2021-08-27 07:50:38,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 07:50:38,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:38,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 07:50:38,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-27 07:50:38,211 INFO L87 Difference]: Start difference. First operand 239 states and 303 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:38,976 INFO L93 Difference]: Finished difference Result 261 states and 325 transitions. [2021-08-27 07:50:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 07:50:38,982 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2021-08-27 07:50:38,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:38,983 INFO L225 Difference]: With dead ends: 261 [2021-08-27 07:50:38,983 INFO L226 Difference]: Without dead ends: 216 [2021-08-27 07:50:38,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 157.9ms TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-08-27 07:50:38,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-08-27 07:50:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-08-27 07:50:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 172 states have (on average 1.2209302325581395) internal successors, (210), 174 states have internal predecessors, (210), 21 states have call successors, (21), 17 states have call predecessors, (21), 22 states have return successors, (26), 24 states have call predecessors, (26), 15 states have call successors, (26) [2021-08-27 07:50:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-08-27 07:50:38,988 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 55 [2021-08-27 07:50:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:38,989 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-08-27 07:50:38,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-08-27 07:50:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 07:50:38,990 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:38,990 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:38,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-27 07:50:38,990 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:38,990 INFO L82 PathProgramCache]: Analyzing trace with hash 81251043, now seen corresponding path program 1 times [2021-08-27 07:50:38,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:38,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658670599] [2021-08-27 07:50:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:38,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 07:50:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-27 07:50:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-27 07:50:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-27 07:50:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-08-27 07:50:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:39,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 07:50:39,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658670599] [2021-08-27 07:50:39,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658670599] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:39,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:39,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-27 07:50:39,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736648941] [2021-08-27 07:50:39,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:39,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 07:50:39,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:39,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:39,141 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:39,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:39,543 INFO L93 Difference]: Finished difference Result 235 states and 280 transitions. [2021-08-27 07:50:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 07:50:39,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2021-08-27 07:50:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:39,546 INFO L225 Difference]: With dead ends: 235 [2021-08-27 07:50:39,546 INFO L226 Difference]: Without dead ends: 235 [2021-08-27 07:50:39,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.8ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:39,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-08-27 07:50:39,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2021-08-27 07:50:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 178 states have (on average 1.2247191011235956) internal successors, (218), 180 states have internal predecessors, (218), 21 states have call successors, (21), 17 states have call predecessors, (21), 22 states have return successors, (26), 24 states have call predecessors, (26), 15 states have call successors, (26) [2021-08-27 07:50:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 265 transitions. [2021-08-27 07:50:39,552 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 265 transitions. Word has length 56 [2021-08-27 07:50:39,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:39,552 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 265 transitions. [2021-08-27 07:50:39,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-27 07:50:39,552 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 265 transitions. [2021-08-27 07:50:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 07:50:39,553 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:39,553 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:39,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-27 07:50:39,554 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:39,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:39,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1355183133, now seen corresponding path program 1 times [2021-08-27 07:50:39,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 07:50:39,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763617696] [2021-08-27 07:50:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:39,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 07:50:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:50:39,569 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 07:50:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:50:39,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 07:50:39,617 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 07:50:39,618 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-08-27 07:50:39,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 07:50:39,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-27 07:50:39,625 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 07:50:39,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 07:50:39 BoogieIcfgContainer [2021-08-27 07:50:39,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 07:50:39,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 07:50:39,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 07:50:39,719 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 07:50:39,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:17" (3/4) ... [2021-08-27 07:50:39,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 07:50:39,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 07:50:39,724 INFO L168 Benchmark]: Toolchain (without parser) took 23581.51 ms. Allocated memory was 54.5 MB in the beginning and 302.0 MB in the end (delta: 247.5 MB). Free memory was 36.7 MB in the beginning and 169.8 MB in the end (delta: -133.2 MB). Peak memory consumption was 113.6 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:39,725 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 26.3 MB in the end (delta: 43.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:50:39,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.76 ms. Allocated memory is still 54.5 MB. Free memory was 36.6 MB in the beginning and 33.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:39,725 INFO L168 Benchmark]: Boogie Preprocessor took 50.30 ms. Allocated memory is still 54.5 MB. Free memory was 33.6 MB in the beginning and 30.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:39,726 INFO L168 Benchmark]: RCFGBuilder took 965.34 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.6 MB in the beginning and 42.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:39,726 INFO L168 Benchmark]: TraceAbstraction took 22184.42 ms. Allocated memory was 67.1 MB in the beginning and 302.0 MB in the end (delta: 234.9 MB). Free memory was 41.9 MB in the beginning and 169.8 MB in the end (delta: -127.9 MB). Peak memory consumption was 105.6 MB. Max. memory is 16.1 GB. [2021-08-27 07:50:39,726 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 302.0 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:50:39,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 26.3 MB in the end (delta: 43.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.76 ms. Allocated memory is still 54.5 MB. Free memory was 36.6 MB in the beginning and 33.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.30 ms. Allocated memory is still 54.5 MB. Free memory was 33.6 MB in the beginning and 30.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 965.34 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.6 MB in the beginning and 42.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22184.42 ms. Allocated memory was 67.1 MB in the beginning and 302.0 MB in the end (delta: 234.9 MB). Free memory was 41.9 MB in the beginning and 169.8 MB in the end (delta: -127.9 MB). Peak memory consumption was 105.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.96 ms. Allocated memory is still 302.0 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=69, \old(compRegistered)=49, \old(customIrp)=52, \old(DC)=73, \old(DevicePowerState)=55, \old(Executive)=71, \old(IPC)=61, \old(KernelMode)=57, \old(lowerDriverReturn)=62, \old(MPR1)=68, \old(MPR3)=75, \old(myStatus)=72, \old(NP)=53, \old(pended)=70, \old(s)=58, \old(setEventCalled)=50, \old(SKIP1)=56, \old(SKIP2)=67, \old(UNLOADED)=60, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, devobj=-3, Executive=0, IPC=0, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L326] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND FALSE !(irp_choice == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L342] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=-5, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] RET, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L429] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L453] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 293]: 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 19 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 22044.4ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 36.6ms, AutomataDifference: 16858.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5373 SDtfs, 9304 SDslu, 7381 SDs, 0 SdLazy, 15833 SolverSat, 1837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10722.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 5499.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=4, InterpolantAutomatonStates: 219, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 214.1ms AutomataMinimizationTime, 22 MinimizatonAttempts, 309 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 84.5ms SsaConstructionTime, 283.3ms SatisfiabilityAnalysisTime, 4240.1ms InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 5666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 07:50:39,782 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 07:50:41,621 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-27 07:50:41,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 07:50:41,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 07:50:41,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 07:50:41,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 07:50:41,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 07:50:41,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 07:50:41,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 07:50:41,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 07:50:41,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 07:50:41,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 07:50:41,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 07:50:41,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 07:50:41,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 07:50:41,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 07:50:41,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 07:50:41,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 07:50:41,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 07:50:41,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 07:50:41,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 07:50:41,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 07:50:41,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 07:50:41,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 07:50:41,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 07:50:41,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 07:50:41,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 07:50:41,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 07:50:41,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 07:50:41,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 07:50:41,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 07:50:41,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 07:50:41,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 07:50:41,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 07:50:41,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 07:50:41,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 07:50:41,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 07:50:41,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 07:50:41,776 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 07:50:41,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 07:50:41,777 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 07:50:41,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 07:50:41,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 07:50:41,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 07:50:41,779 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 07:50:41,779 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 07:50:41,779 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 07:50:41,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 07:50:41,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 07:50:41,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 07:50:41,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 07:50:41,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:50:41,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 07:50:41,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 07:50:41,780 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 07:50:41,780 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 07:50:41,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 07:50:41,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 07:50:41,781 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf978f501147b566a0f6f3e817c934f24352e71 [2021-08-27 07:50:42,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 07:50:42,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 07:50:42,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 07:50:42,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 07:50:42,091 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 07:50:42,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-27 07:50:42,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc129a474/4e5057e7af624a3982339e78f3d59cd8/FLAGf6f61f3df [2021-08-27 07:50:42,636 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 07:50:42,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-27 07:50:42,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc129a474/4e5057e7af624a3982339e78f3d59cd8/FLAGf6f61f3df [2021-08-27 07:50:42,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc129a474/4e5057e7af624a3982339e78f3d59cd8 [2021-08-27 07:50:42,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 07:50:42,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 07:50:42,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 07:50:42,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 07:50:42,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 07:50:42,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:50:42" (1/1) ... [2021-08-27 07:50:42,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18fce233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:42, skipping insertion in model container [2021-08-27 07:50:42,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:50:42" (1/1) ... [2021-08-27 07:50:42,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 07:50:42,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 07:50:43,027 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-27 07:50:43,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:50:43,050 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 07:50:43,149 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-27 07:50:43,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 07:50:43,170 INFO L208 MainTranslator]: Completed translation [2021-08-27 07:50:43,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43 WrapperNode [2021-08-27 07:50:43,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 07:50:43,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 07:50:43,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 07:50:43,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 07:50:43,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 07:50:43,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 07:50:43,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 07:50:43,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 07:50:43,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (1/1) ... [2021-08-27 07:50:43,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 07:50:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 07:50:43,290 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) [2021-08-27 07:50:43,316 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 [2021-08-27 07:50:43,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 07:50:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 07:50:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 07:50:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-08-27 07:50:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-08-27 07:50:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2021-08-27 07:50:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 07:50:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-08-27 07:50:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-08-27 07:50:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-08-27 07:50:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-08-27 07:50:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-08-27 07:50:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2021-08-27 07:50:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2021-08-27 07:50:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2021-08-27 07:50:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2021-08-27 07:50:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-08-27 07:50:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2021-08-27 07:50:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-08-27 07:50:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 07:50:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-08-27 07:50:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-08-27 07:50:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-27 07:50:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 07:50:43,674 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:43,791 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-08-27 07:50:43,791 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-08-27 07:50:43,810 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:43,861 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-27 07:50:43,861 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-27 07:50:43,947 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:43,969 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-08-27 07:50:43,969 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-08-27 07:50:43,980 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:44,120 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-08-27 07:50:44,120 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-08-27 07:50:44,124 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:44,147 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-08-27 07:50:44,147 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-08-27 07:50:44,153 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 07:50:44,177 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-27 07:50:44,177 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-27 07:50:44,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 07:50:44,241 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-27 07:50:44,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:44 BoogieIcfgContainer [2021-08-27 07:50:44,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 07:50:44,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 07:50:44,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 07:50:44,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 07:50:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 07:50:42" (1/3) ... [2021-08-27 07:50:44,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996455d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:50:44, skipping insertion in model container [2021-08-27 07:50:44,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:50:43" (2/3) ... [2021-08-27 07:50:44,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996455d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:50:44, skipping insertion in model container [2021-08-27 07:50:44,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:44" (3/3) ... [2021-08-27 07:50:44,257 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-08-27 07:50:44,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 07:50:44,262 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-27 07:50:44,293 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 07:50:44,298 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 07:50:44,299 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-27 07:50:44,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2021-08-27 07:50:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 07:50:44,322 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:44,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:44,323 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:44,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:44,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1216173165, now seen corresponding path program 1 times [2021-08-27 07:50:44,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:44,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422192904] [2021-08-27 07:50:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:44,339 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:44,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:44,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:44,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 07:50:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:44,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-27 07:50:44,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:44,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:44,666 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:44,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422192904] [2021-08-27 07:50:44,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422192904] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:44,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:44,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-08-27 07:50:44,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534655500] [2021-08-27 07:50:44,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 07:50:44,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:44,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 07:50:44,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 07:50:44,692 INFO L87 Difference]: Start difference. First operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:50:44,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:44,721 INFO L93 Difference]: Finished difference Result 238 states and 344 transitions. [2021-08-27 07:50:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 07:50:44,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-08-27 07:50:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:44,732 INFO L225 Difference]: With dead ends: 238 [2021-08-27 07:50:44,733 INFO L226 Difference]: Without dead ends: 231 [2021-08-27 07:50:44,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 07:50:44,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-27 07:50:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-08-27 07:50:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.5) internal successors, (264), 192 states have internal predecessors, (264), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-27 07:50:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 327 transitions. [2021-08-27 07:50:44,805 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 327 transitions. Word has length 15 [2021-08-27 07:50:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:44,806 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 327 transitions. [2021-08-27 07:50:44,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 07:50:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 327 transitions. [2021-08-27 07:50:44,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 07:50:44,807 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:44,807 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:44,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 07:50:45,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:45,013 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:45,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:45,014 INFO L82 PathProgramCache]: Analyzing trace with hash -650681863, now seen corresponding path program 1 times [2021-08-27 07:50:45,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:45,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421243689] [2021-08-27 07:50:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:45,015 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:45,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:45,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:45,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 07:50:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:45,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:45,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:45,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:45,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:45,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421243689] [2021-08-27 07:50:45,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421243689] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:45,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:45,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 07:50:45,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71092698] [2021-08-27 07:50:45,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:50:45,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:45,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:50:45,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:45,422 INFO L87 Difference]: Start difference. First operand 231 states and 327 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 07:50:45,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:45,504 INFO L93 Difference]: Finished difference Result 231 states and 326 transitions. [2021-08-27 07:50:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:45,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2021-08-27 07:50:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:45,512 INFO L225 Difference]: With dead ends: 231 [2021-08-27 07:50:45,512 INFO L226 Difference]: Without dead ends: 231 [2021-08-27 07:50:45,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-27 07:50:45,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-08-27 07:50:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 192 states have internal predecessors, (263), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-27 07:50:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2021-08-27 07:50:45,531 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2021-08-27 07:50:45,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:45,531 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2021-08-27 07:50:45,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 07:50:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2021-08-27 07:50:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 07:50:45,536 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:45,536 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:45,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-27 07:50:45,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:45,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:45,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:45,742 INFO L82 PathProgramCache]: Analyzing trace with hash 634702516, now seen corresponding path program 1 times [2021-08-27 07:50:45,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:45,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488414418] [2021-08-27 07:50:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:45,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:45,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:45,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:45,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 07:50:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:45,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 07:50:45,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:46,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:46,339 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:46,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488414418] [2021-08-27 07:50:46,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488414418] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:46,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:46,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-08-27 07:50:46,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853224762] [2021-08-27 07:50:46,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:46,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:46,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:46,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:46,342 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:46,719 INFO L93 Difference]: Finished difference Result 315 states and 428 transitions. [2021-08-27 07:50:46,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:46,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-08-27 07:50:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:46,722 INFO L225 Difference]: With dead ends: 315 [2021-08-27 07:50:46,722 INFO L226 Difference]: Without dead ends: 314 [2021-08-27 07:50:46,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-08-27 07:50:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 298. [2021-08-27 07:50:46,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 234 states have (on average 1.3974358974358974) internal successors, (327), 237 states have internal predecessors, (327), 38 states have call successors, (38), 23 states have call predecessors, (38), 25 states have return successors, (43), 40 states have call predecessors, (43), 29 states have call successors, (43) [2021-08-27 07:50:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 408 transitions. [2021-08-27 07:50:46,738 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 408 transitions. Word has length 28 [2021-08-27 07:50:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:46,738 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 408 transitions. [2021-08-27 07:50:46,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 408 transitions. [2021-08-27 07:50:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 07:50:46,740 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:46,740 INFO L512 BasicCegarLoop]: 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] [2021-08-27 07:50:46,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:46,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:46,954 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:46,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:46,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2054471313, now seen corresponding path program 1 times [2021-08-27 07:50:46,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:46,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794486905] [2021-08-27 07:50:46,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:46,956 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:46,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:46,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:46,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 07:50:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:47,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:47,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:47,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:47,416 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:47,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794486905] [2021-08-27 07:50:47,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794486905] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:47,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:47,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:47,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947825033] [2021-08-27 07:50:47,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:47,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:47,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:47,418 INFO L87 Difference]: Start difference. First operand 298 states and 408 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:47,450 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2021-08-27 07:50:47,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:47,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-08-27 07:50:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:47,455 INFO L225 Difference]: With dead ends: 362 [2021-08-27 07:50:47,455 INFO L226 Difference]: Without dead ends: 362 [2021-08-27 07:50:47,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-08-27 07:50:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 338. [2021-08-27 07:50:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 275 states have (on average 1.3890909090909092) internal successors, (382), 276 states have internal predecessors, (382), 34 states have call successors, (34), 23 states have call predecessors, (34), 28 states have return successors, (43), 39 states have call predecessors, (43), 27 states have call successors, (43) [2021-08-27 07:50:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 459 transitions. [2021-08-27 07:50:47,477 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 459 transitions. Word has length 28 [2021-08-27 07:50:47,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:47,478 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 459 transitions. [2021-08-27 07:50:47,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 07:50:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 459 transitions. [2021-08-27 07:50:47,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 07:50:47,480 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:47,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:47,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:47,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:47,693 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:47,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:47,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1351706538, now seen corresponding path program 1 times [2021-08-27 07:50:47,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:47,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737554831] [2021-08-27 07:50:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:47,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:47,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:47,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:47,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 07:50:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:47,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:50:47,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:48,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:48,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:48,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737554831] [2021-08-27 07:50:48,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737554831] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:48,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:48,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-08-27 07:50:48,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216833107] [2021-08-27 07:50:48,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:48,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:48,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:48,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:48,300 INFO L87 Difference]: Start difference. First operand 338 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:48,565 INFO L93 Difference]: Finished difference Result 337 states and 456 transitions. [2021-08-27 07:50:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:50:48,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2021-08-27 07:50:48,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:48,568 INFO L225 Difference]: With dead ends: 337 [2021-08-27 07:50:48,568 INFO L226 Difference]: Without dead ends: 337 [2021-08-27 07:50:48,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:48,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-08-27 07:50:48,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2021-08-27 07:50:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 275 states have (on average 1.3818181818181818) internal successors, (380), 275 states have internal predecessors, (380), 33 states have call successors, (33), 23 states have call predecessors, (33), 28 states have return successors, (43), 39 states have call predecessors, (43), 27 states have call successors, (43) [2021-08-27 07:50:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 456 transitions. [2021-08-27 07:50:48,579 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 456 transitions. Word has length 38 [2021-08-27 07:50:48,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:48,579 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 456 transitions. [2021-08-27 07:50:48,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 07:50:48,579 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 456 transitions. [2021-08-27 07:50:48,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:50:48,582 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:48,582 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:48,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-08-27 07:50:48,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:48,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:48,793 INFO L82 PathProgramCache]: Analyzing trace with hash 136406623, now seen corresponding path program 1 times [2021-08-27 07:50:48,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:48,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882854931] [2021-08-27 07:50:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:48,794 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:48,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:48,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:48,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 07:50:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:49,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:49,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:49,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:49,403 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:49,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882854931] [2021-08-27 07:50:49,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882854931] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:49,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:49,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-08-27 07:50:49,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24293938] [2021-08-27 07:50:49,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:50:49,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:50:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:49,405 INFO L87 Difference]: Start difference. First operand 337 states and 456 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:50:49,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:49,573 INFO L93 Difference]: Finished difference Result 319 states and 424 transitions. [2021-08-27 07:50:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:50:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-27 07:50:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:49,576 INFO L225 Difference]: With dead ends: 319 [2021-08-27 07:50:49,576 INFO L226 Difference]: Without dead ends: 319 [2021-08-27 07:50:49,576 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:50:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-08-27 07:50:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 298. [2021-08-27 07:50:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 241 states have internal predecessors, (331), 30 states have call successors, (30), 21 states have call predecessors, (30), 26 states have return successors, (38), 36 states have call predecessors, (38), 24 states have call successors, (38) [2021-08-27 07:50:49,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 399 transitions. [2021-08-27 07:50:49,585 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 399 transitions. Word has length 46 [2021-08-27 07:50:49,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:49,585 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 399 transitions. [2021-08-27 07:50:49,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 07:50:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 399 transitions. [2021-08-27 07:50:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-27 07:50:49,587 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:49,587 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:49,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:49,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:49,800 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:49,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1699015048, now seen corresponding path program 1 times [2021-08-27 07:50:49,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:49,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669328997] [2021-08-27 07:50:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:49,801 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:49,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:49,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:49,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 07:50:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:50,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:50,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:50,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:50,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:50,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669328997] [2021-08-27 07:50:50,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669328997] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:50,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:50,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:50,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192679317] [2021-08-27 07:50:50,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:50,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:50,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:50,779 INFO L87 Difference]: Start difference. First operand 298 states and 399 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:51,115 INFO L93 Difference]: Finished difference Result 328 states and 431 transitions. [2021-08-27 07:50:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:51,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 45 [2021-08-27 07:50:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:51,119 INFO L225 Difference]: With dead ends: 328 [2021-08-27 07:50:51,120 INFO L226 Difference]: Without dead ends: 327 [2021-08-27 07:50:51,120 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 50.1ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-08-27 07:50:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 314. [2021-08-27 07:50:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 255 states have (on average 1.3647058823529412) internal successors, (348), 254 states have internal predecessors, (348), 30 states have call successors, (30), 21 states have call predecessors, (30), 28 states have return successors, (40), 38 states have call predecessors, (40), 24 states have call successors, (40) [2021-08-27 07:50:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 418 transitions. [2021-08-27 07:50:51,130 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 418 transitions. Word has length 45 [2021-08-27 07:50:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:51,130 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 418 transitions. [2021-08-27 07:50:51,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 418 transitions. [2021-08-27 07:50:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 07:50:51,132 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:51,132 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:51,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:51,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:51,344 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:51,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:51,344 INFO L82 PathProgramCache]: Analyzing trace with hash 750548217, now seen corresponding path program 1 times [2021-08-27 07:50:51,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:51,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590447205] [2021-08-27 07:50:51,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:51,345 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:51,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:51,346 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:51,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 07:50:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:51,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 07:50:51,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:52,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:52,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:52,249 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:52,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590447205] [2021-08-27 07:50:52,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590447205] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:52,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:52,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-27 07:50:52,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067554130] [2021-08-27 07:50:52,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 07:50:52,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:52,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 07:50:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-27 07:50:52,256 INFO L87 Difference]: Start difference. First operand 314 states and 418 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:52,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:52,556 INFO L93 Difference]: Finished difference Result 319 states and 421 transitions. [2021-08-27 07:50:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 07:50:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 46 [2021-08-27 07:50:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:52,559 INFO L225 Difference]: With dead ends: 319 [2021-08-27 07:50:52,559 INFO L226 Difference]: Without dead ends: 319 [2021-08-27 07:50:52,561 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-27 07:50:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-08-27 07:50:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 314. [2021-08-27 07:50:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 255 states have (on average 1.3607843137254902) internal successors, (347), 254 states have internal predecessors, (347), 30 states have call successors, (30), 21 states have call predecessors, (30), 28 states have return successors, (40), 38 states have call predecessors, (40), 24 states have call successors, (40) [2021-08-27 07:50:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 417 transitions. [2021-08-27 07:50:52,577 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 417 transitions. Word has length 46 [2021-08-27 07:50:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:52,579 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 417 transitions. [2021-08-27 07:50:52,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-27 07:50:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 417 transitions. [2021-08-27 07:50:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 07:50:52,580 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:52,580 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:52,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:52,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:52,792 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:52,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:52,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1580928350, now seen corresponding path program 1 times [2021-08-27 07:50:52,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:52,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797757158] [2021-08-27 07:50:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:52,794 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:52,796 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:52,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 07:50:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:53,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:53,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:53,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:53,488 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:53,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797757158] [2021-08-27 07:50:53,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797757158] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:53,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:53,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 07:50:53,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060295769] [2021-08-27 07:50:53,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:50:53,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:53,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:50:53,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:53,490 INFO L87 Difference]: Start difference. First operand 314 states and 417 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-27 07:50:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:53,513 INFO L93 Difference]: Finished difference Result 308 states and 405 transitions. [2021-08-27 07:50:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:53,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 47 [2021-08-27 07:50:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:53,515 INFO L225 Difference]: With dead ends: 308 [2021-08-27 07:50:53,515 INFO L226 Difference]: Without dead ends: 272 [2021-08-27 07:50:53,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:50:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-08-27 07:50:53,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 242. [2021-08-27 07:50:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.378787878787879) internal successors, (273), 201 states have internal predecessors, (273), 27 states have call successors, (27), 19 states have call predecessors, (27), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2021-08-27 07:50:53,522 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 47 [2021-08-27 07:50:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:53,522 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2021-08-27 07:50:53,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-27 07:50:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2021-08-27 07:50:53,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:53,523 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:53,523 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:53,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:53,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:53,735 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:53,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:53,735 INFO L82 PathProgramCache]: Analyzing trace with hash 479956528, now seen corresponding path program 1 times [2021-08-27 07:50:53,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:53,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211572226] [2021-08-27 07:50:53,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:53,736 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:53,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:53,737 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:53,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 07:50:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:54,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:50:54,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:54,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:54,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:54,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:54,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211572226] [2021-08-27 07:50:54,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211572226] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:54,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:54,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-27 07:50:54,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235900741] [2021-08-27 07:50:54,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 07:50:54,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:54,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 07:50:54,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:54,445 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:54,505 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2021-08-27 07:50:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 07:50:54,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2021-08-27 07:50:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:54,507 INFO L225 Difference]: With dead ends: 240 [2021-08-27 07:50:54,507 INFO L226 Difference]: Without dead ends: 240 [2021-08-27 07:50:54,507 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 07:50:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-08-27 07:50:54,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-08-27 07:50:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3705583756345177) internal successors, (270), 199 states have internal predecessors, (270), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2021-08-27 07:50:54,513 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2021-08-27 07:50:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:54,514 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2021-08-27 07:50:54,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:50:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2021-08-27 07:50:54,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 07:50:54,515 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:54,515 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:54,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:54,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:54,727 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:54,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:54,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1828872474, now seen corresponding path program 1 times [2021-08-27 07:50:54,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:54,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693593835] [2021-08-27 07:50:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:54,728 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:54,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:54,729 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:54,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 07:50:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:55,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:50:55,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:55,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:55,841 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:55,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693593835] [2021-08-27 07:50:55,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693593835] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:55,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:55,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-08-27 07:50:55,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741639639] [2021-08-27 07:50:55,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:55,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:55,843 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:56,322 INFO L93 Difference]: Finished difference Result 245 states and 318 transitions. [2021-08-27 07:50:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 07:50:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 51 [2021-08-27 07:50:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:56,323 INFO L225 Difference]: With dead ends: 245 [2021-08-27 07:50:56,324 INFO L226 Difference]: Without dead ends: 245 [2021-08-27 07:50:56,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 151.5ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:56,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-08-27 07:50:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2021-08-27 07:50:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3604060913705585) internal successors, (268), 199 states have internal predecessors, (268), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2021-08-27 07:50:56,330 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 51 [2021-08-27 07:50:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:56,330 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2021-08-27 07:50:56,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:56,331 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2021-08-27 07:50:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:56,332 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:56,332 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:56,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:56,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:56,544 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:56,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2141770251, now seen corresponding path program 1 times [2021-08-27 07:50:56,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:56,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684267766] [2021-08-27 07:50:56,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:56,545 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:56,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:56,548 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:56,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-27 07:50:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:57,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 07:50:57,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:57,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:57,782 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:57,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684267766] [2021-08-27 07:50:57,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684267766] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:57,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:57,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-08-27 07:50:57,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35910488] [2021-08-27 07:50:57,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 07:50:57,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:57,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 07:50:57,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 07:50:57,799 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:58,177 INFO L93 Difference]: Finished difference Result 238 states and 309 transitions. [2021-08-27 07:50:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 07:50:58,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 53 [2021-08-27 07:50:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:58,181 INFO L225 Difference]: With dead ends: 238 [2021-08-27 07:50:58,181 INFO L226 Difference]: Without dead ends: 238 [2021-08-27 07:50:58,181 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 111.1ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-08-27 07:50:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-27 07:50:58,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-08-27 07:50:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 195 states have (on average 1.3435897435897435) internal successors, (262), 197 states have internal predecessors, (262), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-27 07:50:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 309 transitions. [2021-08-27 07:50:58,187 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 309 transitions. Word has length 53 [2021-08-27 07:50:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:58,187 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 309 transitions. [2021-08-27 07:50:58,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-27 07:50:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 309 transitions. [2021-08-27 07:50:58,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 07:50:58,188 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:58,188 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:58,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:58,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:58,389 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:58,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:58,389 INFO L82 PathProgramCache]: Analyzing trace with hash 305745141, now seen corresponding path program 1 times [2021-08-27 07:50:58,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:58,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377679925] [2021-08-27 07:50:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:58,390 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:58,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:58,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:58,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-27 07:50:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:50:58,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:50:58,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:50:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:59,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:50:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:50:59,470 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:50:59,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377679925] [2021-08-27 07:50:59,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377679925] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:50:59,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:50:59,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-08-27 07:50:59,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774212496] [2021-08-27 07:50:59,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 07:50:59,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:50:59,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 07:50:59,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:50:59,489 INFO L87 Difference]: Start difference. First operand 238 states and 309 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:50:59,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:50:59,710 INFO L93 Difference]: Finished difference Result 266 states and 337 transitions. [2021-08-27 07:50:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 07:50:59,711 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2021-08-27 07:50:59,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:50:59,712 INFO L225 Difference]: With dead ends: 266 [2021-08-27 07:50:59,712 INFO L226 Difference]: Without dead ends: 210 [2021-08-27 07:50:59,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:50:59,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-08-27 07:50:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-08-27 07:50:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.345029239766082) internal successors, (230), 173 states have internal predecessors, (230), 24 states have call successors, (24), 17 states have call predecessors, (24), 14 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-27 07:50:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 273 transitions. [2021-08-27 07:50:59,716 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 273 transitions. Word has length 53 [2021-08-27 07:50:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:50:59,716 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 273 transitions. [2021-08-27 07:50:59,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:50:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 273 transitions. [2021-08-27 07:50:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-27 07:50:59,717 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:50:59,717 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:50:59,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-27 07:50:59,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:50:59,930 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:50:59,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:50:59,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1690938736, now seen corresponding path program 1 times [2021-08-27 07:50:59,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:50:59,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102730482] [2021-08-27 07:50:59,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:50:59,931 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:50:59,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:50:59,932 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:50:59,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-27 07:51:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:00,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 07:51:00,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:00,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:00,906 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:00,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102730482] [2021-08-27 07:51:00,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102730482] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:00,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:00,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 07:51:00,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052266543] [2021-08-27 07:51:00,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 07:51:00,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:00,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 07:51:00,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:51:00,907 INFO L87 Difference]: Start difference. First operand 210 states and 273 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:51:00,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:00,919 INFO L93 Difference]: Finished difference Result 203 states and 263 transitions. [2021-08-27 07:51:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 07:51:00,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2021-08-27 07:51:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:00,920 INFO L225 Difference]: With dead ends: 203 [2021-08-27 07:51:00,921 INFO L226 Difference]: Without dead ends: 203 [2021-08-27 07:51:00,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 07:51:00,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-08-27 07:51:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-08-27 07:51:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 166 states have internal predecessors, (220), 24 states have call successors, (24), 17 states have call predecessors, (24), 14 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-27 07:51:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 263 transitions. [2021-08-27 07:51:00,926 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 263 transitions. Word has length 57 [2021-08-27 07:51:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:00,926 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 263 transitions. [2021-08-27 07:51:00,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:51:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 263 transitions. [2021-08-27 07:51:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-27 07:51:00,927 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:00,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:00,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:01,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:01,141 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:01,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:01,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1650215593, now seen corresponding path program 1 times [2021-08-27 07:51:01,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:01,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511160663] [2021-08-27 07:51:01,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:01,142 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:01,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:01,143 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:01,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-27 07:51:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:01,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:01,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:02,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:02,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:02,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511160663] [2021-08-27 07:51:02,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511160663] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:02,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:02,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-27 07:51:02,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312380742] [2021-08-27 07:51:02,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 07:51:02,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:02,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 07:51:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:02,337 INFO L87 Difference]: Start difference. First operand 203 states and 263 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:02,643 INFO L93 Difference]: Finished difference Result 245 states and 309 transitions. [2021-08-27 07:51:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:51:02,644 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2021-08-27 07:51:02,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:02,645 INFO L225 Difference]: With dead ends: 245 [2021-08-27 07:51:02,645 INFO L226 Difference]: Without dead ends: 213 [2021-08-27 07:51:02,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 195.8ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:02,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-08-27 07:51:02,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 201. [2021-08-27 07:51:02,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 163 states have (on average 1.343558282208589) internal successors, (219), 165 states have internal predecessors, (219), 23 states have call successors, (23), 17 states have call predecessors, (23), 14 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-27 07:51:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2021-08-27 07:51:02,655 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 54 [2021-08-27 07:51:02,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:02,656 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2021-08-27 07:51:02,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:02,657 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2021-08-27 07:51:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-27 07:51:02,658 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:02,658 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:02,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:02,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:02,871 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:02,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:02,871 INFO L82 PathProgramCache]: Analyzing trace with hash 973628382, now seen corresponding path program 1 times [2021-08-27 07:51:02,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:02,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795314459] [2021-08-27 07:51:02,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:02,872 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:02,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:02,873 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:02,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-27 07:51:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:03,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 07:51:03,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:03,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:03,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:03,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795314459] [2021-08-27 07:51:03,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795314459] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:03,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:03,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 07:51:03,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169575833] [2021-08-27 07:51:03,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 07:51:03,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:03,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 07:51:03,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:51:03,820 INFO L87 Difference]: Start difference. First operand 201 states and 260 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-08-27 07:51:03,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:03,839 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2021-08-27 07:51:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 07:51:03,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-08-27 07:51:03,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:03,840 INFO L225 Difference]: With dead ends: 203 [2021-08-27 07:51:03,840 INFO L226 Difference]: Without dead ends: 200 [2021-08-27 07:51:03,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 07:51:03,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-08-27 07:51:03,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-08-27 07:51:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 162 states have (on average 1.3209876543209877) internal successors, (214), 164 states have internal predecessors, (214), 23 states have call successors, (23), 17 states have call predecessors, (23), 14 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-27 07:51:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 255 transitions. [2021-08-27 07:51:03,845 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 255 transitions. Word has length 60 [2021-08-27 07:51:03,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:03,846 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 255 transitions. [2021-08-27 07:51:03,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-08-27 07:51:03,846 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 255 transitions. [2021-08-27 07:51:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 07:51:03,847 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:03,847 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:03,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-08-27 07:51:04,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:04,060 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:04,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1570272846, now seen corresponding path program 1 times [2021-08-27 07:51:04,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:04,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458280346] [2021-08-27 07:51:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:04,061 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:04,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:04,061 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:04,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-27 07:51:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:04,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 07:51:04,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:05,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:05,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:05,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458280346] [2021-08-27 07:51:05,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458280346] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:05,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:05,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-08-27 07:51:05,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613018645] [2021-08-27 07:51:05,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-27 07:51:05,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:05,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 07:51:05,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-08-27 07:51:05,491 INFO L87 Difference]: Start difference. First operand 200 states and 255 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-08-27 07:51:05,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:05,814 INFO L93 Difference]: Finished difference Result 237 states and 296 transitions. [2021-08-27 07:51:05,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 07:51:05,815 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 56 [2021-08-27 07:51:05,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:05,816 INFO L225 Difference]: With dead ends: 237 [2021-08-27 07:51:05,816 INFO L226 Difference]: Without dead ends: 216 [2021-08-27 07:51:05,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 228.8ms TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-08-27 07:51:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 198. [2021-08-27 07:51:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 161 states have (on average 1.3167701863354038) internal successors, (212), 163 states have internal predecessors, (212), 22 states have call successors, (22), 17 states have call predecessors, (22), 14 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-08-27 07:51:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 251 transitions. [2021-08-27 07:51:05,821 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 251 transitions. Word has length 56 [2021-08-27 07:51:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:05,821 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 251 transitions. [2021-08-27 07:51:05,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-08-27 07:51:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 251 transitions. [2021-08-27 07:51:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 07:51:05,822 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:05,823 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:05,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:06,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:06,034 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:06,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1689207293, now seen corresponding path program 1 times [2021-08-27 07:51:06,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:06,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658653076] [2021-08-27 07:51:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:06,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:06,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:06,036 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:06,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-27 07:51:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:06,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 07:51:06,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:06,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:07,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:07,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658653076] [2021-08-27 07:51:07,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658653076] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:07,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:07,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-08-27 07:51:07,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274218913] [2021-08-27 07:51:07,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 07:51:07,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:07,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 07:51:07,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-27 07:51:07,198 INFO L87 Difference]: Start difference. First operand 198 states and 251 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:51:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:07,534 INFO L93 Difference]: Finished difference Result 283 states and 346 transitions. [2021-08-27 07:51:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 07:51:07,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-08-27 07:51:07,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:07,536 INFO L225 Difference]: With dead ends: 283 [2021-08-27 07:51:07,536 INFO L226 Difference]: Without dead ends: 269 [2021-08-27 07:51:07,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 90.0ms TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-08-27 07:51:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-08-27 07:51:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 204. [2021-08-27 07:51:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 166 states have (on average 1.3072289156626506) internal successors, (217), 169 states have internal predecessors, (217), 22 states have call successors, (22), 17 states have call predecessors, (22), 15 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19) [2021-08-27 07:51:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 258 transitions. [2021-08-27 07:51:07,542 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 258 transitions. Word has length 55 [2021-08-27 07:51:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:07,542 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 258 transitions. [2021-08-27 07:51:07,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-27 07:51:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 258 transitions. [2021-08-27 07:51:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 07:51:07,543 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:07,543 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:07,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:07,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:07,755 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:07,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:07,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1776480712, now seen corresponding path program 1 times [2021-08-27 07:51:07,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:07,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990570652] [2021-08-27 07:51:07,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:07,757 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:07,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:07,758 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:07,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-27 07:51:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 07:51:08,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 07:51:08,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 07:51:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:08,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 07:51:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 07:51:09,040 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 07:51:09,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990570652] [2021-08-27 07:51:09,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990570652] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 07:51:09,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 07:51:09,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-27 07:51:09,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973689020] [2021-08-27 07:51:09,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 07:51:09,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 07:51:09,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 07:51:09,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-27 07:51:09,042 INFO L87 Difference]: Start difference. First operand 204 states and 258 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:09,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 07:51:09,309 INFO L93 Difference]: Finished difference Result 237 states and 291 transitions. [2021-08-27 07:51:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 07:51:09,310 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2021-08-27 07:51:09,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 07:51:09,311 INFO L225 Difference]: With dead ends: 237 [2021-08-27 07:51:09,311 INFO L226 Difference]: Without dead ends: 188 [2021-08-27 07:51:09,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 203.0ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-27 07:51:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-08-27 07:51:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2021-08-27 07:51:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.2206896551724138) internal successors, (177), 148 states have internal predecessors, (177), 21 states have call successors, (21), 17 states have call predecessors, (21), 15 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2021-08-27 07:51:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2021-08-27 07:51:09,315 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 55 [2021-08-27 07:51:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 07:51:09,316 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2021-08-27 07:51:09,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-27 07:51:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2021-08-27 07:51:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-27 07:51:09,317 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 07:51:09,317 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 07:51:09,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:09,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:09,529 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-27 07:51:09,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 07:51:09,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1355183133, now seen corresponding path program 1 times [2021-08-27 07:51:09,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 07:51:09,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517820462] [2021-08-27 07:51:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 07:51:09,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 07:51:09,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 07:51:09,531 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 07:51:09,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-27 07:51:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:51:10,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 07:51:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 07:51:10,575 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 07:51:10,575 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 07:51:10,576 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-08-27 07:51:10,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 07:51:10,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-27 07:51:10,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 07:51:10,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 07:51:10,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 07:51:10 BoogieIcfgContainer [2021-08-27 07:51:10,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 07:51:10,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 07:51:10,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 07:51:10,914 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 07:51:10,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:50:44" (3/4) ... [2021-08-27 07:51:10,924 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 07:51:10,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 07:51:10,926 INFO L168 Benchmark]: Toolchain (without parser) took 28252.89 ms. Allocated memory was 56.6 MB in the beginning and 308.3 MB in the end (delta: 251.7 MB). Free memory was 35.2 MB in the beginning and 270.3 MB in the end (delta: -235.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:10,926 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:51:10,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.02 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 48.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:10,927 INFO L168 Benchmark]: Boogie Preprocessor took 78.86 ms. Allocated memory is still 69.2 MB. Free memory was 48.1 MB in the beginning and 44.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:10,927 INFO L168 Benchmark]: RCFGBuilder took 991.92 ms. Allocated memory is still 69.2 MB. Free memory was 44.9 MB in the beginning and 29.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:10,927 INFO L168 Benchmark]: TraceAbstraction took 26663.36 ms. Allocated memory was 83.9 MB in the beginning and 308.3 MB in the end (delta: 224.4 MB). Free memory was 64.3 MB in the beginning and 270.3 MB in the end (delta: -206.0 MB). Peak memory consumption was 190.8 MB. Max. memory is 16.1 GB. [2021-08-27 07:51:10,927 INFO L168 Benchmark]: Witness Printer took 10.93 ms. Allocated memory is still 308.3 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 07:51:10,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.02 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 48.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.86 ms. Allocated memory is still 69.2 MB. Free memory was 48.1 MB in the beginning and 44.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 991.92 ms. Allocated memory is still 69.2 MB. Free memory was 44.9 MB in the beginning and 29.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26663.36 ms. Allocated memory was 83.9 MB in the beginning and 308.3 MB in the end (delta: 224.4 MB). Free memory was 64.3 MB in the beginning and 270.3 MB in the end (delta: -206.0 MB). Peak memory consumption was 190.8 MB. Max. memory is 16.1 GB. * Witness Printer took 10.93 ms. Allocated memory is still 308.3 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=25, \old(compRegistered)=9, \old(customIrp)=34, \old(DC)=17, \old(DevicePowerState)=27, \old(Executive)=19, \old(IPC)=32, \old(KernelMode)=16, \old(lowerDriverReturn)=18, \old(MPR1)=35, \old(MPR3)=30, \old(myStatus)=8, \old(NP)=33, \old(pended)=31, \old(s)=20, \old(setEventCalled)=28, \old(SKIP1)=15, \old(SKIP2)=24, \old(UNLOADED)=13, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, devobj=37, Executive=0, IPC=0, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=38, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L326] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND FALSE !(irp_choice == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L342] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] RET, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L429] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L453] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 293]: 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 19 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 26506.8ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 34.7ms, AutomataDifference: 4126.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5270 SDtfs, 3913 SDslu, 16541 SDs, 0 SdLazy, 2940 SolverSat, 437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2612.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1726 GetRequests, 1580 SyntacticMatches, 1 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1315.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=4, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 217.5ms AutomataMinimizationTime, 19 MinimizatonAttempts, 215 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 588.3ms SsaConstructionTime, 1645.4ms SatisfiabilityAnalysisTime, 8774.8ms InterpolantComputationTime, 916 NumberOfCodeBlocks, 916 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1682 ConstructedInterpolants, 0 QuantifiedInterpolants, 4159 SizeOfPredicates, 31 NumberOfNonLiveVariables, 5929 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 07:51:10,968 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...