./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 0.1.25-906a4fb [2020-10-19 18:23:18,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:23:18,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:23:18,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:23:18,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:23:18,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:23:18,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:23:18,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:23:18,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:23:18,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:23:18,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:23:18,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:23:18,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:23:18,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:23:18,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:23:18,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:23:18,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:23:18,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:23:18,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:23:18,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:23:18,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:23:18,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:23:18,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:23:18,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:23:18,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:23:18,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:23:18,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:23:18,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:23:18,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:23:18,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:23:18,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:23:18,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:23:18,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:23:18,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:23:18,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:23:18,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:23:18,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:23:18,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:23:18,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:23:18,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:23:18,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:23:18,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:23:18,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:23:18,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:23:18,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:23:18,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:23:18,520 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:23:18,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:23:18,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:23:18,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:23:18,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:23:18,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:23:18,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:23:18,522 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:23:18,522 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:23:18,522 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:23:18,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:23:18,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:23:18,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:23:18,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:23:18,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:23:18,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:23:18,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:23:18,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:23:18,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:23:18,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:23:18,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:23:18,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:23:18,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:23:18,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:23:18,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 [2020-10-19 18:23:18,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:23:18,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:23:18,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:23:18,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:23:18,874 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:23:18,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-19 18:23:18,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94719e744/3efc6209a51a4db4b797e7a3cb82ece2/FLAG604372f3f [2020-10-19 18:23:19,416 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:23:19,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-19 18:23:19,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94719e744/3efc6209a51a4db4b797e7a3cb82ece2/FLAG604372f3f [2020-10-19 18:23:19,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94719e744/3efc6209a51a4db4b797e7a3cb82ece2 [2020-10-19 18:23:19,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:23:19,756 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:23:19,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:19,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:23:19,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:23:19,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:19" (1/1) ... [2020-10-19 18:23:19,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d33d885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:19, skipping insertion in model container [2020-10-19 18:23:19,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:19" (1/1) ... [2020-10-19 18:23:19,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:23:19,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:23:20,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:20,154 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:23:20,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:20,319 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:23:20,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20 WrapperNode [2020-10-19 18:23:20,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:20,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:23:20,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:23:20,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:23:20,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... [2020-10-19 18:23:20,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:23:20,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:23:20,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:23:20,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:23:20,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:23:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:23:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:23:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:23:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-19 18:23:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-19 18:23:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-10-19 18:23:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:23:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-19 18:23:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-19 18:23:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-19 18:23:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-19 18:23:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-19 18:23:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-10-19 18:23:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-10-19 18:23:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-10-19 18:23:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-10-19 18:23:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-10-19 18:23:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-10-19 18:23:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-19 18:23:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:23:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:23:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:23:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:23:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-19 18:23:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:23:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-19 18:23:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-10-19 18:23:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-19 18:23:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-19 18:23:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-19 18:23:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-10-19 18:23:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-10-19 18:23:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-10-19 18:23:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-10-19 18:23:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-10-19 18:23:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-10-19 18:23:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-19 18:23:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-19 18:23:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-19 18:23:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-19 18:23:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:23:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-19 18:23:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:23:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:23:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:23:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:23:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:23:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:23:20,768 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:20,939 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-10-19 18:23:20,940 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-10-19 18:23:20,948 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:20,993 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-19 18:23:20,993 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-19 18:23:21,147 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:21,169 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-19 18:23:21,169 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-19 18:23:21,178 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:21,291 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-10-19 18:23:21,292 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-10-19 18:23:21,296 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:21,324 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-19 18:23:21,324 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-19 18:23:21,331 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:21,359 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-19 18:23:21,360 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-19 18:23:21,410 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:23:21,411 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:23:21,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:21 BoogieIcfgContainer [2020-10-19 18:23:21,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:23:21,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:23:21,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:23:21,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:23:21,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:23:19" (1/3) ... [2020-10-19 18:23:21,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b066cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:21, skipping insertion in model container [2020-10-19 18:23:21,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:20" (2/3) ... [2020-10-19 18:23:21,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b066cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:21, skipping insertion in model container [2020-10-19 18:23:21,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:21" (3/3) ... [2020-10-19 18:23:21,425 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-10-19 18:23:21,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:23:21,447 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-19 18:23:21,463 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-19 18:23:21,488 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:23:21,488 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:23:21,488 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:23:21,489 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:23:21,489 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:23:21,489 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:23:21,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:23:21,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:23:21,516 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-19 18:23:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:23:21,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:21,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:23:21,530 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:21,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1840155786, now seen corresponding path program 1 times [2020-10-19 18:23:21,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:21,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479685256] [2020-10-19 18:23:21,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:21,920 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-19 18:23:21,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:21,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:22,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:22,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479685256] [2020-10-19 18:23:22,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:22,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:23:22,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822811431] [2020-10-19 18:23:22,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:23:22,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:22,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:23:22,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:23:22,049 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2020-10-19 18:23:22,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:22,837 INFO L93 Difference]: Finished difference Result 267 states and 386 transitions. [2020-10-19 18:23:22,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:23:22,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-19 18:23:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:22,857 INFO L225 Difference]: With dead ends: 267 [2020-10-19 18:23:22,857 INFO L226 Difference]: Without dead ends: 260 [2020-10-19 18:23:22,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:23:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-19 18:23:22,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2020-10-19 18:23:22,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-19 18:23:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2020-10-19 18:23:22,936 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 15 [2020-10-19 18:23:22,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:22,937 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2020-10-19 18:23:22,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:23:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2020-10-19 18:23:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 18:23:22,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:22,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:23:22,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:23:22,940 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:22,941 INFO L82 PathProgramCache]: Analyzing trace with hash 939288791, now seen corresponding path program 1 times [2020-10-19 18:23:22,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:22,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793461891] [2020-10-19 18:23:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:23,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:23,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:23,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793461891] [2020-10-19 18:23:23,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:23,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:23:23,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188587913] [2020-10-19 18:23:23,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:23:23,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:23,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:23:23,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:23:23,257 INFO L87 Difference]: Start difference. First operand 232 states and 328 transitions. Second operand 5 states. [2020-10-19 18:23:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:24,222 INFO L93 Difference]: Finished difference Result 260 states and 368 transitions. [2020-10-19 18:23:24,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:23:24,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-19 18:23:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:24,227 INFO L225 Difference]: With dead ends: 260 [2020-10-19 18:23:24,227 INFO L226 Difference]: Without dead ends: 260 [2020-10-19 18:23:24,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:23:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-19 18:23:24,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2020-10-19 18:23:24,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-19 18:23:24,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2020-10-19 18:23:24,250 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 21 [2020-10-19 18:23:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:24,250 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2020-10-19 18:23:24,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:23:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2020-10-19 18:23:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:23:24,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:24,253 INFO L422 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] [2020-10-19 18:23:24,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:23:24,253 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:24,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1222215616, now seen corresponding path program 1 times [2020-10-19 18:23:24,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:24,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858835793] [2020-10-19 18:23:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:24,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:24,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:24,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:24,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858835793] [2020-10-19 18:23:24,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:24,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:23:24,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865188935] [2020-10-19 18:23:24,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:23:24,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:24,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:23:24,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:23:24,448 INFO L87 Difference]: Start difference. First operand 232 states and 327 transitions. Second operand 6 states. [2020-10-19 18:23:25,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:25,843 INFO L93 Difference]: Finished difference Result 352 states and 480 transitions. [2020-10-19 18:23:25,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:23:25,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-19 18:23:25,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:25,848 INFO L225 Difference]: With dead ends: 352 [2020-10-19 18:23:25,849 INFO L226 Difference]: Without dead ends: 351 [2020-10-19 18:23:25,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-19 18:23:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 305. [2020-10-19 18:23:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-19 18:23:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-10-19 18:23:25,891 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 29 [2020-10-19 18:23:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:25,892 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-10-19 18:23:25,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:23:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-10-19 18:23:25,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:23:25,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:25,894 INFO L422 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] [2020-10-19 18:23:25,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:23:25,895 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:25,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:25,896 INFO L82 PathProgramCache]: Analyzing trace with hash -159057791, now seen corresponding path program 1 times [2020-10-19 18:23:25,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:25,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637467658] [2020-10-19 18:23:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:26,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:26,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637467658] [2020-10-19 18:23:26,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:26,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:23:26,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128315130] [2020-10-19 18:23:26,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:23:26,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:26,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:23:26,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:23:26,166 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 6 states. [2020-10-19 18:23:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:27,073 INFO L93 Difference]: Finished difference Result 370 states and 496 transitions. [2020-10-19 18:23:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:23:27,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-19 18:23:27,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:27,077 INFO L225 Difference]: With dead ends: 370 [2020-10-19 18:23:27,077 INFO L226 Difference]: Without dead ends: 370 [2020-10-19 18:23:27,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-19 18:23:27,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 345. [2020-10-19 18:23:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-19 18:23:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-19 18:23:27,096 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 29 [2020-10-19 18:23:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:27,097 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-19 18:23:27,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:23:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-19 18:23:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-19 18:23:27,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:27,100 INFO L422 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] [2020-10-19 18:23:27,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:23:27,101 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:27,102 INFO L82 PathProgramCache]: Analyzing trace with hash -164502744, now seen corresponding path program 1 times [2020-10-19 18:23:27,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:27,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624603396] [2020-10-19 18:23:27,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:27,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:27,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:27,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624603396] [2020-10-19 18:23:27,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:27,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:23:27,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141149884] [2020-10-19 18:23:27,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:23:27,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:27,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:23:27,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:23:27,361 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-19 18:23:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:28,356 INFO L93 Difference]: Finished difference Result 344 states and 464 transitions. [2020-10-19 18:23:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:23:28,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-19 18:23:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:28,361 INFO L225 Difference]: With dead ends: 344 [2020-10-19 18:23:28,361 INFO L226 Difference]: Without dead ends: 344 [2020-10-19 18:23:28,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:23:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-10-19 18:23:28,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-10-19 18:23:28,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-19 18:23:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 464 transitions. [2020-10-19 18:23:28,379 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 464 transitions. Word has length 39 [2020-10-19 18:23:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:28,380 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 464 transitions. [2020-10-19 18:23:28,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:23:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 464 transitions. [2020-10-19 18:23:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-19 18:23:28,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:28,385 INFO L422 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] [2020-10-19 18:23:28,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:23:28,385 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:28,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:28,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1784923219, now seen corresponding path program 1 times [2020-10-19 18:23:28,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:28,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778048779] [2020-10-19 18:23:28,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:28,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:28,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-19 18:23:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:28,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778048779] [2020-10-19 18:23:28,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:28,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:23:28,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916199756] [2020-10-19 18:23:28,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:23:28,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:28,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:23:28,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:28,637 INFO L87 Difference]: Start difference. First operand 344 states and 464 transitions. Second operand 8 states. [2020-10-19 18:23:30,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:30,029 INFO L93 Difference]: Finished difference Result 327 states and 433 transitions. [2020-10-19 18:23:30,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:23:30,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-10-19 18:23:30,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:30,033 INFO L225 Difference]: With dead ends: 327 [2020-10-19 18:23:30,034 INFO L226 Difference]: Without dead ends: 327 [2020-10-19 18:23:30,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:23:30,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-19 18:23:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 305. [2020-10-19 18:23:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-19 18:23:30,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 407 transitions. [2020-10-19 18:23:30,047 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 407 transitions. Word has length 47 [2020-10-19 18:23:30,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:30,048 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 407 transitions. [2020-10-19 18:23:30,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:23:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 407 transitions. [2020-10-19 18:23:30,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-19 18:23:30,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:30,051 INFO L422 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] [2020-10-19 18:23:30,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:23:30,051 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:30,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:30,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1743771521, now seen corresponding path program 1 times [2020-10-19 18:23:30,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:30,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005908742] [2020-10-19 18:23:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:30,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:30,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:30,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-19 18:23:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-19 18:23:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:30,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005908742] [2020-10-19 18:23:30,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:30,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-19 18:23:30,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713180159] [2020-10-19 18:23:30,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:23:30,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:30,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:23:30,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:23:30,417 INFO L87 Difference]: Start difference. First operand 305 states and 407 transitions. Second operand 12 states. [2020-10-19 18:23:31,527 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-19 18:23:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:31,688 INFO L93 Difference]: Finished difference Result 328 states and 432 transitions. [2020-10-19 18:23:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:23:31,689 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-10-19 18:23:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:31,694 INFO L225 Difference]: With dead ends: 328 [2020-10-19 18:23:31,694 INFO L226 Difference]: Without dead ends: 327 [2020-10-19 18:23:31,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:23:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-19 18:23:31,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-19 18:23:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-19 18:23:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 426 transitions. [2020-10-19 18:23:31,718 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 426 transitions. Word has length 46 [2020-10-19 18:23:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:31,718 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 426 transitions. [2020-10-19 18:23:31,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:23:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 426 transitions. [2020-10-19 18:23:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-19 18:23:31,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:31,724 INFO L422 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] [2020-10-19 18:23:31,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:23:31,725 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:31,726 INFO L82 PathProgramCache]: Analyzing trace with hash -651523847, now seen corresponding path program 1 times [2020-10-19 18:23:31,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:31,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135903530] [2020-10-19 18:23:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:31,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:31,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:31,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:31,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-19 18:23:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-19 18:23:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:32,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:32,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135903530] [2020-10-19 18:23:32,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:32,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-19 18:23:32,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95605261] [2020-10-19 18:23:32,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:23:32,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:32,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:23:32,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:23:32,071 INFO L87 Difference]: Start difference. First operand 321 states and 426 transitions. Second operand 12 states. [2020-10-19 18:23:33,324 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-19 18:23:33,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:33,501 INFO L93 Difference]: Finished difference Result 327 states and 430 transitions. [2020-10-19 18:23:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:23:33,502 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2020-10-19 18:23:33,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:33,505 INFO L225 Difference]: With dead ends: 327 [2020-10-19 18:23:33,505 INFO L226 Difference]: Without dead ends: 327 [2020-10-19 18:23:33,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:23:33,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-19 18:23:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-19 18:23:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-19 18:23:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 425 transitions. [2020-10-19 18:23:33,518 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 425 transitions. Word has length 47 [2020-10-19 18:23:33,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:33,518 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 425 transitions. [2020-10-19 18:23:33,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:23:33,519 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 425 transitions. [2020-10-19 18:23:33,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-19 18:23:33,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:33,520 INFO L422 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] [2020-10-19 18:23:33,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:23:33,521 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:33,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:33,521 INFO L82 PathProgramCache]: Analyzing trace with hash -975698037, now seen corresponding path program 1 times [2020-10-19 18:23:33,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:33,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355801670] [2020-10-19 18:23:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:33,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:33,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:33,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-19 18:23:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:33,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-19 18:23:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:33,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355801670] [2020-10-19 18:23:33,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:33,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:23:33,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855490737] [2020-10-19 18:23:33,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:23:33,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:33,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:23:33,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:33,738 INFO L87 Difference]: Start difference. First operand 321 states and 425 transitions. Second operand 8 states. [2020-10-19 18:23:34,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:34,642 INFO L93 Difference]: Finished difference Result 315 states and 413 transitions. [2020-10-19 18:23:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:23:34,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-10-19 18:23:34,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:34,646 INFO L225 Difference]: With dead ends: 315 [2020-10-19 18:23:34,647 INFO L226 Difference]: Without dead ends: 273 [2020-10-19 18:23:34,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:23:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-19 18:23:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 243. [2020-10-19 18:23:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-19 18:23:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 322 transitions. [2020-10-19 18:23:34,657 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 322 transitions. Word has length 48 [2020-10-19 18:23:34,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:34,657 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 322 transitions. [2020-10-19 18:23:34,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:23:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 322 transitions. [2020-10-19 18:23:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:23:34,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:34,659 INFO L422 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] [2020-10-19 18:23:34,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:23:34,660 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:34,661 INFO L82 PathProgramCache]: Analyzing trace with hash 720522391, now seen corresponding path program 1 times [2020-10-19 18:23:34,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:34,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851805025] [2020-10-19 18:23:34,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-19 18:23:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-19 18:23:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-19 18:23:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:34,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851805025] [2020-10-19 18:23:34,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:34,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:23:34,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760247942] [2020-10-19 18:23:34,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:23:34,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:34,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:23:34,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:34,936 INFO L87 Difference]: Start difference. First operand 243 states and 322 transitions. Second operand 8 states. [2020-10-19 18:23:35,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:35,640 INFO L93 Difference]: Finished difference Result 241 states and 318 transitions. [2020-10-19 18:23:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:23:35,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-19 18:23:35,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:35,642 INFO L225 Difference]: With dead ends: 241 [2020-10-19 18:23:35,643 INFO L226 Difference]: Without dead ends: 241 [2020-10-19 18:23:35,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:23:35,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-19 18:23:35,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-19 18:23:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-19 18:23:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2020-10-19 18:23:35,651 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 54 [2020-10-19 18:23:35,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:35,652 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2020-10-19 18:23:35,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:23:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2020-10-19 18:23:35,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-19 18:23:35,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:35,654 INFO L422 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] [2020-10-19 18:23:35,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 18:23:35,654 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:35,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:35,655 INFO L82 PathProgramCache]: Analyzing trace with hash -183905982, now seen corresponding path program 1 times [2020-10-19 18:23:35,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:35,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510200992] [2020-10-19 18:23:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:35,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:35,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:35,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-19 18:23:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:35,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:23:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:35,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:35,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510200992] [2020-10-19 18:23:35,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:35,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-19 18:23:35,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153020387] [2020-10-19 18:23:35,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:23:35,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:35,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:23:35,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:23:35,938 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand 11 states. [2020-10-19 18:23:36,723 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-19 18:23:37,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:37,429 INFO L93 Difference]: Finished difference Result 245 states and 319 transitions. [2020-10-19 18:23:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-19 18:23:37,430 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-10-19 18:23:37,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:37,432 INFO L225 Difference]: With dead ends: 245 [2020-10-19 18:23:37,432 INFO L226 Difference]: Without dead ends: 245 [2020-10-19 18:23:37,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-10-19 18:23:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-19 18:23:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2020-10-19 18:23:37,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-19 18:23:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2020-10-19 18:23:37,441 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 52 [2020-10-19 18:23:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:37,441 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2020-10-19 18:23:37,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:23:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2020-10-19 18:23:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:23:37,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:37,444 INFO L422 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] [2020-10-19 18:23:37,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 18:23:37,444 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:37,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:37,445 INFO L82 PathProgramCache]: Analyzing trace with hash -599457753, now seen corresponding path program 1 times [2020-10-19 18:23:37,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:37,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838473303] [2020-10-19 18:23:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:37,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:37,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-19 18:23:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:37,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:23:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:37,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838473303] [2020-10-19 18:23:37,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:37,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:23:37,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053523063] [2020-10-19 18:23:37,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:23:37,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:37,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:23:37,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:37,650 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand 8 states. [2020-10-19 18:23:38,154 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-19 18:23:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:38,718 INFO L93 Difference]: Finished difference Result 251 states and 327 transitions. [2020-10-19 18:23:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:23:38,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-19 18:23:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:38,721 INFO L225 Difference]: With dead ends: 251 [2020-10-19 18:23:38,721 INFO L226 Difference]: Without dead ends: 251 [2020-10-19 18:23:38,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:23:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-19 18:23:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2020-10-19 18:23:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-19 18:23:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 320 transitions. [2020-10-19 18:23:38,736 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 320 transitions. Word has length 54 [2020-10-19 18:23:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:38,738 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 320 transitions. [2020-10-19 18:23:38,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:23:38,738 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 320 transitions. [2020-10-19 18:23:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:23:38,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:38,740 INFO L422 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] [2020-10-19 18:23:38,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 18:23:38,740 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:38,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2006565801, now seen corresponding path program 1 times [2020-10-19 18:23:38,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:38,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49259113] [2020-10-19 18:23:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:38,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:38,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-19 18:23:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:23:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:39,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49259113] [2020-10-19 18:23:39,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:39,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-19 18:23:39,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096915518] [2020-10-19 18:23:39,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:23:39,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:39,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:23:39,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:23:39,086 INFO L87 Difference]: Start difference. First operand 244 states and 320 transitions. Second operand 11 states. [2020-10-19 18:23:39,457 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-19 18:23:39,617 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-10-19 18:23:39,863 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-19 18:23:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:40,524 INFO L93 Difference]: Finished difference Result 287 states and 367 transitions. [2020-10-19 18:23:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:23:40,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-10-19 18:23:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:40,526 INFO L225 Difference]: With dead ends: 287 [2020-10-19 18:23:40,526 INFO L226 Difference]: Without dead ends: 287 [2020-10-19 18:23:40,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:23:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-19 18:23:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2020-10-19 18:23:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-19 18:23:40,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 359 transitions. [2020-10-19 18:23:40,535 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 359 transitions. Word has length 54 [2020-10-19 18:23:40,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:40,537 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 359 transitions. [2020-10-19 18:23:40,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:23:40,537 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 359 transitions. [2020-10-19 18:23:40,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:23:40,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:40,539 INFO L422 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] [2020-10-19 18:23:40,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 18:23:40,540 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:40,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:40,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2035891929, now seen corresponding path program 1 times [2020-10-19 18:23:40,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:40,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921699465] [2020-10-19 18:23:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:40,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:40,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:40,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-19 18:23:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:40,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:23:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:40,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921699465] [2020-10-19 18:23:40,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:40,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-19 18:23:40,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626593245] [2020-10-19 18:23:40,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:23:40,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:40,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:23:40,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:23:40,790 INFO L87 Difference]: Start difference. First operand 278 states and 359 transitions. Second operand 12 states. [2020-10-19 18:23:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:42,065 INFO L93 Difference]: Finished difference Result 292 states and 373 transitions. [2020-10-19 18:23:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:23:42,066 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-19 18:23:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:42,068 INFO L225 Difference]: With dead ends: 292 [2020-10-19 18:23:42,068 INFO L226 Difference]: Without dead ends: 239 [2020-10-19 18:23:42,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:23:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-19 18:23:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-10-19 18:23:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-19 18:23:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 309 transitions. [2020-10-19 18:23:42,077 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 309 transitions. Word has length 54 [2020-10-19 18:23:42,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:42,077 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 309 transitions. [2020-10-19 18:23:42,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:23:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 309 transitions. [2020-10-19 18:23:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-19 18:23:42,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:42,079 INFO L422 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] [2020-10-19 18:23:42,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 18:23:42,080 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:42,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1854515637, now seen corresponding path program 1 times [2020-10-19 18:23:42,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:42,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105740695] [2020-10-19 18:23:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-19 18:23:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-19 18:23:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-19 18:23:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:42,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105740695] [2020-10-19 18:23:42,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:42,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-19 18:23:42,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486299694] [2020-10-19 18:23:42,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:23:42,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:42,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:23:42,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:23:42,399 INFO L87 Difference]: Start difference. First operand 239 states and 309 transitions. Second operand 12 states. [2020-10-19 18:23:42,589 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-19 18:23:43,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:43,436 INFO L93 Difference]: Finished difference Result 238 states and 305 transitions. [2020-10-19 18:23:43,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:23:43,437 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2020-10-19 18:23:43,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:43,439 INFO L225 Difference]: With dead ends: 238 [2020-10-19 18:23:43,440 INFO L226 Difference]: Without dead ends: 238 [2020-10-19 18:23:43,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:23:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-19 18:23:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 232. [2020-10-19 18:23:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-19 18:23:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 299 transitions. [2020-10-19 18:23:43,448 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 299 transitions. Word has length 58 [2020-10-19 18:23:43,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:43,448 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 299 transitions. [2020-10-19 18:23:43,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:23:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 299 transitions. [2020-10-19 18:23:43,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-19 18:23:43,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:43,451 INFO L422 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] [2020-10-19 18:23:43,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 18:23:43,451 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:43,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:43,452 INFO L82 PathProgramCache]: Analyzing trace with hash 2139153865, now seen corresponding path program 1 times [2020-10-19 18:23:43,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:43,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406959975] [2020-10-19 18:23:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:43,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:43,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-19 18:23:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:43,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406959975] [2020-10-19 18:23:43,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:43,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:23:43,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414878757] [2020-10-19 18:23:43,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:23:43,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:43,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:23:43,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:43,694 INFO L87 Difference]: Start difference. First operand 232 states and 299 transitions. Second operand 8 states. [2020-10-19 18:23:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:44,361 INFO L93 Difference]: Finished difference Result 251 states and 326 transitions. [2020-10-19 18:23:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:23:44,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-19 18:23:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:44,364 INFO L225 Difference]: With dead ends: 251 [2020-10-19 18:23:44,365 INFO L226 Difference]: Without dead ends: 251 [2020-10-19 18:23:44,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:23:44,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-19 18:23:44,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 238. [2020-10-19 18:23:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-19 18:23:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 307 transitions. [2020-10-19 18:23:44,374 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 307 transitions. Word has length 55 [2020-10-19 18:23:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:44,374 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 307 transitions. [2020-10-19 18:23:44,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:23:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 307 transitions. [2020-10-19 18:23:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-19 18:23:44,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:44,376 INFO L422 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] [2020-10-19 18:23:44,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 18:23:44,377 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:44,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:44,377 INFO L82 PathProgramCache]: Analyzing trace with hash 559367369, now seen corresponding path program 1 times [2020-10-19 18:23:44,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:44,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141297392] [2020-10-19 18:23:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-19 18:23:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:44,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141297392] [2020-10-19 18:23:44,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:44,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-19 18:23:44,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545103728] [2020-10-19 18:23:44,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-19 18:23:44,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:44,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-19 18:23:44,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:23:44,688 INFO L87 Difference]: Start difference. First operand 238 states and 307 transitions. Second operand 14 states. [2020-10-19 18:23:45,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:45,690 INFO L93 Difference]: Finished difference Result 260 states and 329 transitions. [2020-10-19 18:23:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:23:45,690 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-10-19 18:23:45,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:45,693 INFO L225 Difference]: With dead ends: 260 [2020-10-19 18:23:45,693 INFO L226 Difference]: Without dead ends: 232 [2020-10-19 18:23:45,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:23:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-19 18:23:45,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-10-19 18:23:45,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-19 18:23:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 298 transitions. [2020-10-19 18:23:45,702 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 298 transitions. Word has length 55 [2020-10-19 18:23:45,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:45,702 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 298 transitions. [2020-10-19 18:23:45,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-19 18:23:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 298 transitions. [2020-10-19 18:23:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-19 18:23:45,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:45,704 INFO L422 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, 1] [2020-10-19 18:23:45,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 18:23:45,705 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:45,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1480194668, now seen corresponding path program 1 times [2020-10-19 18:23:45,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:45,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912176534] [2020-10-19 18:23:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-19 18:23:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-19 18:23:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-19 18:23:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:45,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912176534] [2020-10-19 18:23:45,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:45,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:23:45,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505228132] [2020-10-19 18:23:45,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:23:45,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:45,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:23:45,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:23:45,941 INFO L87 Difference]: Start difference. First operand 232 states and 298 transitions. Second operand 8 states. [2020-10-19 18:23:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:46,698 INFO L93 Difference]: Finished difference Result 233 states and 298 transitions. [2020-10-19 18:23:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:23:46,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-10-19 18:23:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:46,701 INFO L225 Difference]: With dead ends: 233 [2020-10-19 18:23:46,702 INFO L226 Difference]: Without dead ends: 231 [2020-10-19 18:23:46,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:23:46,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-19 18:23:46,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-10-19 18:23:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-19 18:23:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 293 transitions. [2020-10-19 18:23:46,711 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 293 transitions. Word has length 61 [2020-10-19 18:23:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:46,712 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 293 transitions. [2020-10-19 18:23:46,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:23:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 293 transitions. [2020-10-19 18:23:46,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-19 18:23:46,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:46,713 INFO L422 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] [2020-10-19 18:23:46,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 18:23:46,714 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:46,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:46,714 INFO L82 PathProgramCache]: Analyzing trace with hash 849122527, now seen corresponding path program 1 times [2020-10-19 18:23:46,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:46,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522415203] [2020-10-19 18:23:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:46,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:46,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-19 18:23:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-19 18:23:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:47,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-19 18:23:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:47,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522415203] [2020-10-19 18:23:47,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:47,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-19 18:23:47,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021174003] [2020-10-19 18:23:47,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:23:47,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:47,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:23:47,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:23:47,047 INFO L87 Difference]: Start difference. First operand 231 states and 293 transitions. Second operand 15 states. [2020-10-19 18:23:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:48,066 INFO L93 Difference]: Finished difference Result 245 states and 307 transitions. [2020-10-19 18:23:48,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:23:48,066 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-10-19 18:23:48,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:48,068 INFO L225 Difference]: With dead ends: 245 [2020-10-19 18:23:48,068 INFO L226 Difference]: Without dead ends: 228 [2020-10-19 18:23:48,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:23:48,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-19 18:23:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-10-19 18:23:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-19 18:23:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2020-10-19 18:23:48,076 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 58 [2020-10-19 18:23:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:48,077 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2020-10-19 18:23:48,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:23:48,077 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2020-10-19 18:23:48,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-19 18:23:48,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:48,079 INFO L422 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, 1, 1] [2020-10-19 18:23:48,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 18:23:48,079 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:48,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:48,080 INFO L82 PathProgramCache]: Analyzing trace with hash 934225371, now seen corresponding path program 1 times [2020-10-19 18:23:48,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:48,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65453256] [2020-10-19 18:23:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-19 18:23:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:23:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-19 18:23:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:48,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65453256] [2020-10-19 18:23:48,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:48,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-19 18:23:48,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615023327] [2020-10-19 18:23:48,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:23:48,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:48,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:23:48,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:23:48,413 INFO L87 Difference]: Start difference. First operand 228 states and 287 transitions. Second operand 15 states. [2020-10-19 18:23:49,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:49,598 INFO L93 Difference]: Finished difference Result 242 states and 301 transitions. [2020-10-19 18:23:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:23:49,599 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-10-19 18:23:49,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:49,601 INFO L225 Difference]: With dead ends: 242 [2020-10-19 18:23:49,601 INFO L226 Difference]: Without dead ends: 198 [2020-10-19 18:23:49,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:23:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-19 18:23:49,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-19 18:23:49,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-19 18:23:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 244 transitions. [2020-10-19 18:23:49,608 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 244 transitions. Word has length 62 [2020-10-19 18:23:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:49,608 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 244 transitions. [2020-10-19 18:23:49,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:23:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 244 transitions. [2020-10-19 18:23:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-19 18:23:49,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:49,610 INFO L422 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] [2020-10-19 18:23:49,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 18:23:49,611 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:49,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:49,611 INFO L82 PathProgramCache]: Analyzing trace with hash -932768924, now seen corresponding path program 1 times [2020-10-19 18:23:49,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:49,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452690370] [2020-10-19 18:23:49,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-19 18:23:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-19 18:23:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-19 18:23:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:49,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452690370] [2020-10-19 18:23:49,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:49,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-19 18:23:49,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154450289] [2020-10-19 18:23:49,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:23:49,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:49,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:23:49,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:23:49,902 INFO L87 Difference]: Start difference. First operand 198 states and 244 transitions. Second operand 15 states. [2020-10-19 18:23:50,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:50,706 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2020-10-19 18:23:50,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:23:50,707 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-10-19 18:23:50,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:50,709 INFO L225 Difference]: With dead ends: 212 [2020-10-19 18:23:50,709 INFO L226 Difference]: Without dead ends: 172 [2020-10-19 18:23:50,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:23:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-19 18:23:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-19 18:23:50,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-19 18:23:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2020-10-19 18:23:50,715 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 57 [2020-10-19 18:23:50,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:50,716 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2020-10-19 18:23:50,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:23:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2020-10-19 18:23:50,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-19 18:23:50,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:50,717 INFO L422 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] [2020-10-19 18:23:50,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 18:23:50,718 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:50,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:50,719 INFO L82 PathProgramCache]: Analyzing trace with hash -28050612, now seen corresponding path program 1 times [2020-10-19 18:23:50,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:50,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33689253] [2020-10-19 18:23:50,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:50,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:50,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-19 18:23:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:50,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-19 18:23:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:51,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33689253] [2020-10-19 18:23:51,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:51,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-19 18:23:51,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567216523] [2020-10-19 18:23:51,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:23:51,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:51,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:23:51,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:23:51,035 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand 13 states. [2020-10-19 18:23:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:52,310 INFO L93 Difference]: Finished difference Result 274 states and 325 transitions. [2020-10-19 18:23:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:23:52,314 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-10-19 18:23:52,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:52,316 INFO L225 Difference]: With dead ends: 274 [2020-10-19 18:23:52,316 INFO L226 Difference]: Without dead ends: 250 [2020-10-19 18:23:52,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2020-10-19 18:23:52,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-19 18:23:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 182. [2020-10-19 18:23:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-19 18:23:52,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 223 transitions. [2020-10-19 18:23:52,323 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 223 transitions. Word has length 56 [2020-10-19 18:23:52,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:52,324 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 223 transitions. [2020-10-19 18:23:52,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:23:52,324 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 223 transitions. [2020-10-19 18:23:52,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-19 18:23:52,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:52,325 INFO L422 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] [2020-10-19 18:23:52,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-19 18:23:52,326 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:52,326 INFO L82 PathProgramCache]: Analyzing trace with hash -90196367, now seen corresponding path program 1 times [2020-10-19 18:23:52,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:52,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726005061] [2020-10-19 18:23:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:52,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:23:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:52,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:23:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:52,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-19 18:23:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:52,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-19 18:23:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-19 18:23:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:52,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726005061] [2020-10-19 18:23:52,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:52,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-19 18:23:52,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371064595] [2020-10-19 18:23:52,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-19 18:23:52,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:23:52,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-19 18:23:52,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:23:52,624 INFO L87 Difference]: Start difference. First operand 182 states and 223 transitions. Second operand 14 states. [2020-10-19 18:23:53,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:53,510 INFO L93 Difference]: Finished difference Result 204 states and 245 transitions. [2020-10-19 18:23:53,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:23:53,511 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-10-19 18:23:53,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:53,512 INFO L225 Difference]: With dead ends: 204 [2020-10-19 18:23:53,512 INFO L226 Difference]: Without dead ends: 148 [2020-10-19 18:23:53,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:23:53,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-19 18:23:53,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-19 18:23:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-19 18:23:53,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2020-10-19 18:23:53,519 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 56 [2020-10-19 18:23:53,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:53,520 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2020-10-19 18:23:53,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-19 18:23:53,520 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2020-10-19 18:23:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-19 18:23:53,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:53,521 INFO L422 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] [2020-10-19 18:23:53,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-19 18:23:53,522 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:53,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:53,522 INFO L82 PathProgramCache]: Analyzing trace with hash 238720431, now seen corresponding path program 1 times [2020-10-19 18:23:53,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:23:53,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887606776] [2020-10-19 18:23:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:23:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:23:53,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:23:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:23:53,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:23:53,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:23:53,669 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:23:53,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-19 18:23:53,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:23:53 BoogieIcfgContainer [2020-10-19 18:23:53,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:23:53,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:23:53,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:23:53,821 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:23:53,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:21" (3/4) ... [2020-10-19 18:23:53,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:23:53,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:23:53,828 INFO L168 Benchmark]: Toolchain (without parser) took 34078.20 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 633.9 MB). Free memory was 960.0 MB in the beginning and 1.2 GB in the end (delta: -256.5 MB). Peak memory consumption was 377.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:53,829 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:23:53,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:53,830 INFO L168 Benchmark]: Boogie Preprocessor took 72.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:53,831 INFO L168 Benchmark]: RCFGBuilder took 1021.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:53,838 INFO L168 Benchmark]: TraceAbstraction took 32404.53 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 487.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -167.9 MB). Peak memory consumption was 319.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:23:53,839 INFO L168 Benchmark]: Witness Printer took 5.83 ms. Allocated memory is still 1.7 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:23:53,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 562.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1021.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32404.53 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 487.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -167.9 MB). Peak memory consumption was 319.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.83 ms. Allocated memory is still 1.7 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. 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)=57, \old(compRegistered)=67, \old(customIrp)=70, \old(DC)=64, \old(DevicePowerState)=73, \old(Executive)=66, \old(IPC)=49, \old(KernelMode)=60, \old(lowerDriverReturn)=75, \old(MPR1)=58, \old(MPR3)=71, \old(myStatus)=74, \old(NP)=68, \old(pended)=59, \old(s)=50, \old(setEventCalled)=72, \old(SKIP1)=56, \old(SKIP2)=52, \old(UNLOADED)=62, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, 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=-1073741637, 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=-1073741637, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, 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)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \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=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, 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=-2, irp_choice=0, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, 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=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] CALL 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=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L3] __assert_fail("0", "kbfiltr_simpl2.cil-2.c", 3, "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=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 245 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.1s, OverallIterations: 24, TraceHistogramMax: 1, AutomataDifference: 24.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5500 SDtfs, 8947 SDslu, 8073 SDs, 0 SdLazy, 17785 SolverSat, 1828 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 451 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 298 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 1164 NumberOfCodeBlocks, 1164 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1084 ConstructedInterpolants, 0 QuantifiedInterpolants, 292019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:23:55,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:23:55,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:23:55,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:23:55,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:23:55,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:23:55,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:23:55,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:23:55,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:23:55,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:23:55,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:23:55,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:23:55,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:23:55,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:23:55,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:23:55,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:23:55,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:23:55,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:23:55,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:23:55,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:23:55,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:23:55,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:23:55,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:23:55,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:23:55,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:23:55,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:23:55,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:23:55,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:23:55,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:23:55,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:23:55,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:23:55,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:23:55,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:23:55,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:23:55,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:23:55,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:23:55,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:23:55,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:23:55,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:23:55,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:23:55,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:23:55,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:23:55,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:23:55,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:23:55,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:23:55,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:23:55,911 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:23:55,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:23:55,912 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:23:55,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:23:55,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:23:55,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:23:55,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:23:55,913 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:23:55,913 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:23:55,914 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:23:55,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:23:55,914 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:23:55,915 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:23:55,915 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:23:55,915 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:23:55,915 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:23:55,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:23:55,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:23:55,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:23:55,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:23:55,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:23:55,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:23:55,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:23:55,918 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:23:55,918 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:23:55,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:23:55,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:23:55,919 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 [2020-10-19 18:23:56,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:23:56,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:23:56,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:23:56,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:23:56,283 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:23:56,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-19 18:23:56,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae452b81/a27793b73cc742a1ab4ff7ec296cb8cc/FLAG36959eefc [2020-10-19 18:23:56,805 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:23:56,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-10-19 18:23:56,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae452b81/a27793b73cc742a1ab4ff7ec296cb8cc/FLAG36959eefc [2020-10-19 18:23:57,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae452b81/a27793b73cc742a1ab4ff7ec296cb8cc [2020-10-19 18:23:57,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:23:57,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:23:57,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:57,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:23:57,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:23:57,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d33d885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57, skipping insertion in model container [2020-10-19 18:23:57,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:23:57,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:23:57,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:57,680 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:23:57,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:23:57,859 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:23:57,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57 WrapperNode [2020-10-19 18:23:57,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:23:57,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:23:57,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:23:57,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:23:57,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... [2020-10-19 18:23:57,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:23:57,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:23:57,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:23:57,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:23:57,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:23:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:23:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:23:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:23:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-19 18:23:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-19 18:23:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-10-19 18:23:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:23:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-19 18:23:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-19 18:23:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-19 18:23:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-19 18:23:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-19 18:23:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-10-19 18:23:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-10-19 18:23:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-10-19 18:23:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-10-19 18:23:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-10-19 18:23:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-10-19 18:23:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-19 18:23:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:23:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:23:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:23:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:23:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-19 18:23:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:23:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-19 18:23:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-10-19 18:23:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-19 18:23:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-19 18:23:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-19 18:23:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-10-19 18:23:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-10-19 18:23:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-10-19 18:23:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-10-19 18:23:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-10-19 18:23:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-10-19 18:23:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-19 18:23:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-19 18:23:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-19 18:23:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-19 18:23:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:23:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-19 18:23:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:23:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:23:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:23:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:23:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:23:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:23:58,452 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:58,767 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-10-19 18:23:58,768 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-10-19 18:23:58,780 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:58,837 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-19 18:23:58,837 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-19 18:23:58,933 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:58,961 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-19 18:23:58,961 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-19 18:23:58,972 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:59,122 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-10-19 18:23:59,122 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-10-19 18:23:59,127 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:59,156 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-19 18:23:59,157 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-19 18:23:59,164 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:23:59,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-19 18:23:59,199 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-19 18:23:59,261 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:23:59,262 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:23:59,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:59 BoogieIcfgContainer [2020-10-19 18:23:59,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:23:59,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:23:59,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:23:59,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:23:59,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:23:57" (1/3) ... [2020-10-19 18:23:59,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca11f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:59, skipping insertion in model container [2020-10-19 18:23:59,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:23:57" (2/3) ... [2020-10-19 18:23:59,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca11f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:23:59, skipping insertion in model container [2020-10-19 18:23:59,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:59" (3/3) ... [2020-10-19 18:23:59,274 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-10-19 18:23:59,290 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:23:59,299 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-19 18:23:59,315 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-19 18:23:59,340 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:23:59,340 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:23:59,341 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:23:59,341 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:23:59,341 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:23:59,341 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:23:59,342 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:23:59,342 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:23:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-19 18:23:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:23:59,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:59,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:23:59,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:23:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:23:59,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1840155786, now seen corresponding path program 1 times [2020-10-19 18:23:59,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:23:59,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804379984] [2020-10-19 18:23:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:23:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:23:59,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-19 18:23:59,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:23:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:59,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:23:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:23:59,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804379984] [2020-10-19 18:23:59,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:23:59,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-10-19 18:23:59,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876040404] [2020-10-19 18:23:59,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-19 18:23:59,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:23:59,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:23:59,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:23:59,752 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 2 states. [2020-10-19 18:23:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:23:59,794 INFO L93 Difference]: Finished difference Result 239 states and 345 transitions. [2020-10-19 18:23:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:23:59,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-10-19 18:23:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:23:59,812 INFO L225 Difference]: With dead ends: 239 [2020-10-19 18:23:59,813 INFO L226 Difference]: Without dead ends: 232 [2020-10-19 18:23:59,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:23:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-19 18:23:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-10-19 18:23:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-19 18:23:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2020-10-19 18:23:59,882 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 15 [2020-10-19 18:23:59,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:23:59,883 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2020-10-19 18:23:59,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-19 18:23:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2020-10-19 18:23:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 18:23:59,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:23:59,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:00,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:24:00,104 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:00,105 INFO L82 PathProgramCache]: Analyzing trace with hash 939288791, now seen corresponding path program 1 times [2020-10-19 18:24:00,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:00,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754498159] [2020-10-19 18:24:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:00,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:24:00,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:00,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:00,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754498159] [2020-10-19 18:24:00,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:00,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 18:24:00,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791790511] [2020-10-19 18:24:00,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:00,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:00,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:00,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:00,367 INFO L87 Difference]: Start difference. First operand 232 states and 328 transitions. Second operand 4 states. [2020-10-19 18:24:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:00,467 INFO L93 Difference]: Finished difference Result 232 states and 327 transitions. [2020-10-19 18:24:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:24:00,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-19 18:24:00,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:00,470 INFO L225 Difference]: With dead ends: 232 [2020-10-19 18:24:00,470 INFO L226 Difference]: Without dead ends: 232 [2020-10-19 18:24:00,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:00,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-19 18:24:00,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-10-19 18:24:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-19 18:24:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2020-10-19 18:24:00,491 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 21 [2020-10-19 18:24:00,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:00,491 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2020-10-19 18:24:00,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:00,492 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2020-10-19 18:24:00,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:24:00,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:00,493 INFO L422 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] [2020-10-19 18:24:00,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:24:00,707 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:00,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1222215616, now seen corresponding path program 1 times [2020-10-19 18:24:00,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:00,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311964341] [2020-10-19 18:24:00,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:00,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:24:00,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:00,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:00,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:01,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311964341] [2020-10-19 18:24:01,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:01,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-10-19 18:24:01,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905121245] [2020-10-19 18:24:01,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:01,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:01,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:01,006 INFO L87 Difference]: Start difference. First operand 232 states and 327 transitions. Second operand 5 states. [2020-10-19 18:24:01,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:01,426 INFO L93 Difference]: Finished difference Result 317 states and 430 transitions. [2020-10-19 18:24:01,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:24:01,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-19 18:24:01,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:01,430 INFO L225 Difference]: With dead ends: 317 [2020-10-19 18:24:01,430 INFO L226 Difference]: Without dead ends: 316 [2020-10-19 18:24:01,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-10-19 18:24:01,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2020-10-19 18:24:01,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-19 18:24:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 409 transitions. [2020-10-19 18:24:01,452 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 409 transitions. Word has length 29 [2020-10-19 18:24:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:01,453 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 409 transitions. [2020-10-19 18:24:01,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 409 transitions. [2020-10-19 18:24:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:24:01,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:01,454 INFO L422 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] [2020-10-19 18:24:01,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:24:01,669 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:01,670 INFO L82 PathProgramCache]: Analyzing trace with hash -159057791, now seen corresponding path program 1 times [2020-10-19 18:24:01,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:01,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064880869] [2020-10-19 18:24:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:01,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:24:01,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:01,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:01,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064880869] [2020-10-19 18:24:01,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:01,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 18:24:01,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130847650] [2020-10-19 18:24:01,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:24:01,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:01,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:24:01,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:24:01,931 INFO L87 Difference]: Start difference. First operand 299 states and 409 transitions. Second operand 3 states. [2020-10-19 18:24:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:01,987 INFO L93 Difference]: Finished difference Result 364 states and 489 transitions. [2020-10-19 18:24:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:24:01,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-10-19 18:24:01,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:01,991 INFO L225 Difference]: With dead ends: 364 [2020-10-19 18:24:01,991 INFO L226 Difference]: Without dead ends: 364 [2020-10-19 18:24:01,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:24:01,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-10-19 18:24:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 339. [2020-10-19 18:24:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-10-19 18:24:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 460 transitions. [2020-10-19 18:24:02,008 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 460 transitions. Word has length 29 [2020-10-19 18:24:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:02,009 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 460 transitions. [2020-10-19 18:24:02,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:24:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 460 transitions. [2020-10-19 18:24:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-19 18:24:02,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:02,012 INFO L422 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] [2020-10-19 18:24:02,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:24:02,233 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:02,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:02,234 INFO L82 PathProgramCache]: Analyzing trace with hash -164502744, now seen corresponding path program 1 times [2020-10-19 18:24:02,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:02,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151684646] [2020-10-19 18:24:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:02,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:24:02,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:02,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:02,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151684646] [2020-10-19 18:24:02,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:02,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-10-19 18:24:02,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909040577] [2020-10-19 18:24:02,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:02,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:02,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:02,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:02,484 INFO L87 Difference]: Start difference. First operand 339 states and 460 transitions. Second operand 5 states. [2020-10-19 18:24:02,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:02,775 INFO L93 Difference]: Finished difference Result 338 states and 457 transitions. [2020-10-19 18:24:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:24:02,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-19 18:24:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:02,778 INFO L225 Difference]: With dead ends: 338 [2020-10-19 18:24:02,778 INFO L226 Difference]: Without dead ends: 338 [2020-10-19 18:24:02,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:02,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-19 18:24:02,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2020-10-19 18:24:02,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-19 18:24:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 457 transitions. [2020-10-19 18:24:02,792 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 457 transitions. Word has length 39 [2020-10-19 18:24:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:02,792 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 457 transitions. [2020-10-19 18:24:02,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 457 transitions. [2020-10-19 18:24:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-19 18:24:02,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:02,797 INFO L422 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] [2020-10-19 18:24:03,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:24:03,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:03,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:03,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1784923219, now seen corresponding path program 1 times [2020-10-19 18:24:03,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:03,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262343359] [2020-10-19 18:24:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:03,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:24:03,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:03,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:03,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262343359] [2020-10-19 18:24:03,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:03,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2020-10-19 18:24:03,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516900061] [2020-10-19 18:24:03,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:03,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:03,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:03,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:03,278 INFO L87 Difference]: Start difference. First operand 338 states and 457 transitions. Second operand 5 states. [2020-10-19 18:24:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:03,444 INFO L93 Difference]: Finished difference Result 321 states and 426 transitions. [2020-10-19 18:24:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:03,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-19 18:24:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:03,447 INFO L225 Difference]: With dead ends: 321 [2020-10-19 18:24:03,448 INFO L226 Difference]: Without dead ends: 321 [2020-10-19 18:24:03,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:03,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-19 18:24:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2020-10-19 18:24:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-19 18:24:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 400 transitions. [2020-10-19 18:24:03,461 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 400 transitions. Word has length 47 [2020-10-19 18:24:03,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:03,461 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 400 transitions. [2020-10-19 18:24:03,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 400 transitions. [2020-10-19 18:24:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-19 18:24:03,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:03,465 INFO L422 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] [2020-10-19 18:24:03,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:24:03,683 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:03,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1743771521, now seen corresponding path program 1 times [2020-10-19 18:24:03,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:03,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235295273] [2020-10-19 18:24:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:03,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:24:03,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:03,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:04,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235295273] [2020-10-19 18:24:04,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:04,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-19 18:24:04,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432599029] [2020-10-19 18:24:04,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:24:04,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:04,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:24:04,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:24:04,025 INFO L87 Difference]: Start difference. First operand 299 states and 400 transitions. Second operand 8 states. [2020-10-19 18:24:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:04,614 INFO L93 Difference]: Finished difference Result 331 states and 434 transitions. [2020-10-19 18:24:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:24:04,615 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-10-19 18:24:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:04,618 INFO L225 Difference]: With dead ends: 331 [2020-10-19 18:24:04,618 INFO L226 Difference]: Without dead ends: 330 [2020-10-19 18:24:04,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:04,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-19 18:24:04,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 315. [2020-10-19 18:24:04,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-10-19 18:24:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2020-10-19 18:24:04,631 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 46 [2020-10-19 18:24:04,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:04,631 INFO L481 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2020-10-19 18:24:04,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:24:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2020-10-19 18:24:04,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-19 18:24:04,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:04,633 INFO L422 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] [2020-10-19 18:24:04,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 18:24:04,847 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:04,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:04,848 INFO L82 PathProgramCache]: Analyzing trace with hash -651523847, now seen corresponding path program 1 times [2020-10-19 18:24:04,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:04,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037599312] [2020-10-19 18:24:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:24:05,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037599312] [2020-10-19 18:24:05,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:05,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-19 18:24:05,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720337143] [2020-10-19 18:24:05,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:24:05,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:24:05,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:24:05,171 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand 8 states. [2020-10-19 18:24:05,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:05,515 INFO L93 Difference]: Finished difference Result 321 states and 423 transitions. [2020-10-19 18:24:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:24:05,516 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-10-19 18:24:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:05,519 INFO L225 Difference]: With dead ends: 321 [2020-10-19 18:24:05,519 INFO L226 Difference]: Without dead ends: 321 [2020-10-19 18:24:05,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:05,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-19 18:24:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 315. [2020-10-19 18:24:05,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-10-19 18:24:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 418 transitions. [2020-10-19 18:24:05,533 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 418 transitions. Word has length 47 [2020-10-19 18:24:05,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:05,534 INFO L481 AbstractCegarLoop]: Abstraction has 315 states and 418 transitions. [2020-10-19 18:24:05,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:24:05,534 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 418 transitions. [2020-10-19 18:24:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-19 18:24:05,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:05,536 INFO L422 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] [2020-10-19 18:24:05,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 18:24:05,750 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:05,750 INFO L82 PathProgramCache]: Analyzing trace with hash -975698037, now seen corresponding path program 1 times [2020-10-19 18:24:05,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:05,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989982407] [2020-10-19 18:24:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:24:05,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:05,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989982407] [2020-10-19 18:24:05,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:05,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 18:24:05,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351365455] [2020-10-19 18:24:05,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:05,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:05,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:05,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:05,983 INFO L87 Difference]: Start difference. First operand 315 states and 418 transitions. Second operand 4 states. [2020-10-19 18:24:06,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:06,102 INFO L93 Difference]: Finished difference Result 309 states and 406 transitions. [2020-10-19 18:24:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:24:06,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-19 18:24:06,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:06,105 INFO L225 Difference]: With dead ends: 309 [2020-10-19 18:24:06,106 INFO L226 Difference]: Without dead ends: 273 [2020-10-19 18:24:06,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-19 18:24:06,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 243. [2020-10-19 18:24:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-19 18:24:06,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 322 transitions. [2020-10-19 18:24:06,117 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 322 transitions. Word has length 48 [2020-10-19 18:24:06,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:06,117 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 322 transitions. [2020-10-19 18:24:06,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 322 transitions. [2020-10-19 18:24:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:24:06,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:06,120 INFO L422 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] [2020-10-19 18:24:06,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-19 18:24:06,334 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:06,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:06,334 INFO L82 PathProgramCache]: Analyzing trace with hash 720522391, now seen corresponding path program 1 times [2020-10-19 18:24:06,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:06,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987487614] [2020-10-19 18:24:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:24:06,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:06,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987487614] [2020-10-19 18:24:06,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:06,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 18:24:06,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365651941] [2020-10-19 18:24:06,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:24:06,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:06,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:24:06,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:24:06,582 INFO L87 Difference]: Start difference. First operand 243 states and 322 transitions. Second operand 3 states. [2020-10-19 18:24:06,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:06,643 INFO L93 Difference]: Finished difference Result 241 states and 318 transitions. [2020-10-19 18:24:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:24:06,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-10-19 18:24:06,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:06,650 INFO L225 Difference]: With dead ends: 241 [2020-10-19 18:24:06,650 INFO L226 Difference]: Without dead ends: 241 [2020-10-19 18:24:06,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:24:06,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-19 18:24:06,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-19 18:24:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-19 18:24:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2020-10-19 18:24:06,658 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 54 [2020-10-19 18:24:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:06,659 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2020-10-19 18:24:06,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:24:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2020-10-19 18:24:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-19 18:24:06,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:06,661 INFO L422 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] [2020-10-19 18:24:06,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-19 18:24:06,881 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:06,882 INFO L82 PathProgramCache]: Analyzing trace with hash -183905982, now seen corresponding path program 1 times [2020-10-19 18:24:06,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:06,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720968500] [2020-10-19 18:24:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:24:07,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720968500] [2020-10-19 18:24:07,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:07,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2020-10-19 18:24:07,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10427122] [2020-10-19 18:24:07,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:24:07,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:07,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:24:07,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:07,276 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand 11 states. [2020-10-19 18:24:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:07,886 INFO L93 Difference]: Finished difference Result 248 states and 321 transitions. [2020-10-19 18:24:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:24:07,887 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-10-19 18:24:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:07,889 INFO L225 Difference]: With dead ends: 248 [2020-10-19 18:24:07,890 INFO L226 Difference]: Without dead ends: 248 [2020-10-19 18:24:07,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:24:07,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-19 18:24:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 241. [2020-10-19 18:24:07,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-19 18:24:07,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2020-10-19 18:24:07,906 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 52 [2020-10-19 18:24:07,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:07,907 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2020-10-19 18:24:07,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:24:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2020-10-19 18:24:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:24:07,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:07,909 INFO L422 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] [2020-10-19 18:24:08,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-19 18:24:08,122 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:08,122 INFO L82 PathProgramCache]: Analyzing trace with hash -599457753, now seen corresponding path program 1 times [2020-10-19 18:24:08,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:08,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484729658] [2020-10-19 18:24:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:24:08,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484729658] [2020-10-19 18:24:08,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:08,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2020-10-19 18:24:08,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923169370] [2020-10-19 18:24:08,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:24:08,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:08,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:24:08,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:08,527 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand 11 states. [2020-10-19 18:24:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:08,963 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2020-10-19 18:24:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:24:08,964 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-10-19 18:24:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:08,966 INFO L225 Difference]: With dead ends: 239 [2020-10-19 18:24:08,966 INFO L226 Difference]: Without dead ends: 239 [2020-10-19 18:24:08,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:08,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-19 18:24:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-10-19 18:24:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-19 18:24:08,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 310 transitions. [2020-10-19 18:24:08,980 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 310 transitions. Word has length 54 [2020-10-19 18:24:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:08,982 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 310 transitions. [2020-10-19 18:24:08,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:24:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 310 transitions. [2020-10-19 18:24:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-19 18:24:08,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:08,985 INFO L422 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] [2020-10-19 18:24:09,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-19 18:24:09,199 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:09,199 INFO L82 PathProgramCache]: Analyzing trace with hash -2035891929, now seen corresponding path program 1 times [2020-10-19 18:24:09,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:09,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264235439] [2020-10-19 18:24:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:24:09,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:09,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:09,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264235439] [2020-10-19 18:24:09,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:09,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2020-10-19 18:24:09,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940465011] [2020-10-19 18:24:09,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:24:09,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:09,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:24:09,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:24:09,710 INFO L87 Difference]: Start difference. First operand 239 states and 310 transitions. Second operand 15 states. [2020-10-19 18:24:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:10,005 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2020-10-19 18:24:10,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-19 18:24:10,005 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-10-19 18:24:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:10,007 INFO L225 Difference]: With dead ends: 267 [2020-10-19 18:24:10,007 INFO L226 Difference]: Without dead ends: 211 [2020-10-19 18:24:10,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:24:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-19 18:24:10,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-10-19 18:24:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-19 18:24:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 274 transitions. [2020-10-19 18:24:10,014 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 274 transitions. Word has length 54 [2020-10-19 18:24:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:10,015 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 274 transitions. [2020-10-19 18:24:10,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:24:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 274 transitions. [2020-10-19 18:24:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-19 18:24:10,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:10,016 INFO L422 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] [2020-10-19 18:24:10,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-19 18:24:10,231 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:10,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1854515637, now seen corresponding path program 1 times [2020-10-19 18:24:10,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:10,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815411635] [2020-10-19 18:24:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:24:10,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815411635] [2020-10-19 18:24:10,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:10,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:24:10,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728335891] [2020-10-19 18:24:10,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:10,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:10,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:10,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:10,506 INFO L87 Difference]: Start difference. First operand 211 states and 274 transitions. Second operand 5 states. [2020-10-19 18:24:10,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:10,517 INFO L93 Difference]: Finished difference Result 204 states and 264 transitions. [2020-10-19 18:24:10,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:24:10,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-19 18:24:10,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:10,519 INFO L225 Difference]: With dead ends: 204 [2020-10-19 18:24:10,519 INFO L226 Difference]: Without dead ends: 204 [2020-10-19 18:24:10,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-19 18:24:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2020-10-19 18:24:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-19 18:24:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 264 transitions. [2020-10-19 18:24:10,526 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 264 transitions. Word has length 58 [2020-10-19 18:24:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:10,526 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 264 transitions. [2020-10-19 18:24:10,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 264 transitions. [2020-10-19 18:24:10,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-19 18:24:10,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:10,527 INFO L422 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] [2020-10-19 18:24:10,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-19 18:24:10,739 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:10,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,740 INFO L82 PathProgramCache]: Analyzing trace with hash 559367369, now seen corresponding path program 1 times [2020-10-19 18:24:10,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:10,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612482869] [2020-10-19 18:24:10,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:24:10,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:11,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:11,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612482869] [2020-10-19 18:24:11,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:11,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2020-10-19 18:24:11,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149028352] [2020-10-19 18:24:11,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-19 18:24:11,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:11,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 18:24:11,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:24:11,286 INFO L87 Difference]: Start difference. First operand 204 states and 264 transitions. Second operand 17 states. [2020-10-19 18:24:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:11,655 INFO L93 Difference]: Finished difference Result 246 states and 310 transitions. [2020-10-19 18:24:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-19 18:24:11,656 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-10-19 18:24:11,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:11,658 INFO L225 Difference]: With dead ends: 246 [2020-10-19 18:24:11,658 INFO L226 Difference]: Without dead ends: 214 [2020-10-19 18:24:11,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-19 18:24:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-19 18:24:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 202. [2020-10-19 18:24:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-19 18:24:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 261 transitions. [2020-10-19 18:24:11,666 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 261 transitions. Word has length 55 [2020-10-19 18:24:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:11,667 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 261 transitions. [2020-10-19 18:24:11,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-19 18:24:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 261 transitions. [2020-10-19 18:24:11,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-19 18:24:11,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:11,668 INFO L422 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] [2020-10-19 18:24:11,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-19 18:24:11,883 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:11,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:11,884 INFO L82 PathProgramCache]: Analyzing trace with hash -932768924, now seen corresponding path program 1 times [2020-10-19 18:24:11,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:11,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951215667] [2020-10-19 18:24:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:12,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:24:12,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:12,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:12,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951215667] [2020-10-19 18:24:12,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:12,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2020-10-19 18:24:12,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773549811] [2020-10-19 18:24:12,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-19 18:24:12,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:12,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-19 18:24:12,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:24:12,548 INFO L87 Difference]: Start difference. First operand 202 states and 261 transitions. Second operand 19 states. [2020-10-19 18:24:12,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:12,941 INFO L93 Difference]: Finished difference Result 239 states and 302 transitions. [2020-10-19 18:24:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-19 18:24:12,942 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2020-10-19 18:24:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:12,944 INFO L225 Difference]: With dead ends: 239 [2020-10-19 18:24:12,944 INFO L226 Difference]: Without dead ends: 218 [2020-10-19 18:24:12,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-10-19 18:24:12,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-19 18:24:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 200. [2020-10-19 18:24:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-19 18:24:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 257 transitions. [2020-10-19 18:24:12,958 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 257 transitions. Word has length 57 [2020-10-19 18:24:12,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:12,959 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 257 transitions. [2020-10-19 18:24:12,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-19 18:24:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 257 transitions. [2020-10-19 18:24:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-19 18:24:12,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:12,963 INFO L422 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] [2020-10-19 18:24:13,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-10-19 18:24:13,177 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:13,177 INFO L82 PathProgramCache]: Analyzing trace with hash -28050612, now seen corresponding path program 1 times [2020-10-19 18:24:13,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:13,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249960806] [2020-10-19 18:24:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:24:13,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:13,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:13,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249960806] [2020-10-19 18:24:13,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:13,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-10-19 18:24:13,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557226839] [2020-10-19 18:24:13,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:24:13,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:24:13,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:13,528 INFO L87 Difference]: Start difference. First operand 200 states and 257 transitions. Second operand 12 states. [2020-10-19 18:24:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:14,079 INFO L93 Difference]: Finished difference Result 286 states and 353 transitions. [2020-10-19 18:24:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:24:14,080 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-10-19 18:24:14,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:14,082 INFO L225 Difference]: With dead ends: 286 [2020-10-19 18:24:14,082 INFO L226 Difference]: Without dead ends: 272 [2020-10-19 18:24:14,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:24:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-19 18:24:14,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 206. [2020-10-19 18:24:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-19 18:24:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 264 transitions. [2020-10-19 18:24:14,092 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 264 transitions. Word has length 56 [2020-10-19 18:24:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:14,092 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 264 transitions. [2020-10-19 18:24:14,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:24:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 264 transitions. [2020-10-19 18:24:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-19 18:24:14,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:14,095 INFO L422 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] [2020-10-19 18:24:14,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-10-19 18:24:14,311 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:14,311 INFO L82 PathProgramCache]: Analyzing trace with hash -90196367, now seen corresponding path program 1 times [2020-10-19 18:24:14,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:14,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389776031] [2020-10-19 18:24:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:14,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:24:14,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:14,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:14,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:14,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389776031] [2020-10-19 18:24:14,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:14,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2020-10-19 18:24:14,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768087075] [2020-10-19 18:24:14,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-19 18:24:14,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:14,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 18:24:14,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:24:14,796 INFO L87 Difference]: Start difference. First operand 206 states and 264 transitions. Second operand 17 states. [2020-10-19 18:24:15,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:15,175 INFO L93 Difference]: Finished difference Result 239 states and 297 transitions. [2020-10-19 18:24:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-19 18:24:15,175 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-10-19 18:24:15,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:15,177 INFO L225 Difference]: With dead ends: 239 [2020-10-19 18:24:15,177 INFO L226 Difference]: Without dead ends: 190 [2020-10-19 18:24:15,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-19 18:24:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-19 18:24:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2020-10-19 18:24:15,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-19 18:24:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 221 transitions. [2020-10-19 18:24:15,186 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 221 transitions. Word has length 56 [2020-10-19 18:24:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:15,186 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 221 transitions. [2020-10-19 18:24:15,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-19 18:24:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 221 transitions. [2020-10-19 18:24:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-19 18:24:15,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:15,188 INFO L422 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] [2020-10-19 18:24:15,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-10-19 18:24:15,410 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:15,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:15,410 INFO L82 PathProgramCache]: Analyzing trace with hash 849122527, now seen corresponding path program 1 times [2020-10-19 18:24:15,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:15,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989575294] [2020-10-19 18:24:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:15,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:24:15,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:15,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:24:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:16,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989575294] [2020-10-19 18:24:16,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:16,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2020-10-19 18:24:16,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351500718] [2020-10-19 18:24:16,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-19 18:24:16,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:24:16,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-19 18:24:16,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:24:16,167 INFO L87 Difference]: Start difference. First operand 184 states and 221 transitions. Second operand 19 states. [2020-10-19 18:24:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:16,508 INFO L93 Difference]: Finished difference Result 215 states and 253 transitions. [2020-10-19 18:24:16,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-19 18:24:16,508 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 58 [2020-10-19 18:24:16,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:16,510 INFO L225 Difference]: With dead ends: 215 [2020-10-19 18:24:16,511 INFO L226 Difference]: Without dead ends: 181 [2020-10-19 18:24:16,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-10-19 18:24:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-19 18:24:16,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2020-10-19 18:24:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-19 18:24:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2020-10-19 18:24:16,518 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 58 [2020-10-19 18:24:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:16,518 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2020-10-19 18:24:16,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-19 18:24:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2020-10-19 18:24:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-19 18:24:16,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:16,520 INFO L422 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] [2020-10-19 18:24:16,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-10-19 18:24:16,734 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:24:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:16,734 INFO L82 PathProgramCache]: Analyzing trace with hash 238720431, now seen corresponding path program 1 times [2020-10-19 18:24:16,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:24:16,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803622257] [2020-10-19 18:24:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-10-19 18:24:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:24:16,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:24:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:24:17,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:24:17,191 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-19 18:24:17,191 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:24:17,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-10-19 18:24:17,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:24:17 BoogieIcfgContainer [2020-10-19 18:24:17,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:24:17,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:24:17,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:24:17,594 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:24:17,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:23:59" (3/4) ... [2020-10-19 18:24:17,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:24:17,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:24:17,601 INFO L168 Benchmark]: Toolchain (without parser) took 20397.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 366.0 MB). Free memory was 960.0 MB in the beginning and 981.4 MB in the end (delta: -21.4 MB). Peak memory consumption was 344.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:17,602 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:24:17,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:17,603 INFO L168 Benchmark]: Boogie Preprocessor took 128.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:17,603 INFO L168 Benchmark]: RCFGBuilder took 1275.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:17,604 INFO L168 Benchmark]: TraceAbstraction took 18327.30 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 227.0 MB). Free memory was 1.0 GB in the beginning and 981.4 MB in the end (delta: 60.5 MB). Peak memory consumption was 287.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:17,604 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 1.4 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:24:17,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 649.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1275.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18327.30 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 227.0 MB). Free memory was 1.0 GB in the beginning and 981.4 MB in the end (delta: 60.5 MB). Peak memory consumption was 287.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.14 ms. Allocated memory is still 1.4 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. 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=0, 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=0, 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=0, 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 TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 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=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=3221225659, 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=3221225659, 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=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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)=3221225659, \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=3221225659, 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=0, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, 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=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] CALL 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=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L3] __assert_fail("0", "kbfiltr_simpl2.cil-2.c", 3, "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=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 245 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5274 SDtfs, 4860 SDslu, 18174 SDs, 0 SdLazy, 3210 SolverSat, 644 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1758 GetRequests, 1591 SyntacticMatches, 5 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 233 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 932 NumberOfCodeBlocks, 932 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1712 ConstructedInterpolants, 0 QuantifiedInterpolants, 224208 SizeOfPredicates, 36 NumberOfNonLiveVariables, 5993 ConjunctsInSsa, 108 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 Received shutdown request...