/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:29:25,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:29:25,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:29:25,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:29:25,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:29:25,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:29:25,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:29:25,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:29:25,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:29:25,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:29:25,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:29:25,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:29:25,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:29:25,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:29:25,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:29:25,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:29:25,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:29:25,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:29:25,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:29:25,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:29:25,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:29:25,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:29:25,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:29:25,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:29:25,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:29:25,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:29:25,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:29:25,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:29:25,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:29:25,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:29:25,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:29:25,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:29:25,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:29:25,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:29:25,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:29:25,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:29:25,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:29:25,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:29:25,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:29:25,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:29:25,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:29:25,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:29:25,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:29:25,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:29:25,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:29:25,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:29:25,539 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:29:25,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:29:25,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:29:25,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:29:25,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:29:25,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:29:25,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:29:25,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:29:25,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:29:25,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:29:25,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:29:25,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:29:25,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:29:25,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:29:25,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:29:25,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:29:25,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:29:25,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:29:25,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:29:25,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:29:25,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:29:25,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:29:25,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:29:25,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:29:25,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:29:25,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:29:25,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:29:25,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:29:25,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:29:25,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:29:25,881 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:29:25,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-19 21:29:25,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d758bc1/3df507f261c5449eafd2a95c793ac296/FLAGb490d78cc [2020-07-19 21:29:26,416 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:29:26,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-19 21:29:26,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d758bc1/3df507f261c5449eafd2a95c793ac296/FLAGb490d78cc [2020-07-19 21:29:26,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d758bc1/3df507f261c5449eafd2a95c793ac296 [2020-07-19 21:29:26,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:29:26,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:29:26,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:29:26,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:29:26,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:29:26,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:29:26" (1/1) ... [2020-07-19 21:29:26,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af4a478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:26, skipping insertion in model container [2020-07-19 21:29:26,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:29:26" (1/1) ... [2020-07-19 21:29:26,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:29:26,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:29:27,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:29:27,235 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:29:27,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:29:27,476 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:29:27,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27 WrapperNode [2020-07-19 21:29:27,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:29:27,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:29:27,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:29:27,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:29:27,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (1/1) ... [2020-07-19 21:29:27,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:29:27,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:29:27,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:29:27,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:29:27,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (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 [2020-07-19 21:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-19 21:29:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-19 21:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-19 21:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-19 21:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-19 21:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-19 21:29:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-19 21:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-19 21:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-19 21:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-19 21:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-19 21:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-19 21:29:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-19 21:29:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-19 21:29:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-19 21:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-19 21:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:29:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-19 21:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-19 21:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-19 21:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-19 21:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-19 21:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-19 21:29:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-19 21:29:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-19 21:29:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-19 21:29:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-19 21:29:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-19 21:29:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-19 21:29:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-19 21:29:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-19 21:29:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-19 21:29:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:29:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-19 21:29:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:29:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:29:27,957 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 21:29:28,021 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-19 21:29:28,021 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-19 21:29:28,043 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 21:29:28,176 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-19 21:29:28,176 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-19 21:29:28,178 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 21:29:28,219 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-19 21:29:28,220 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-19 21:29:28,226 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 21:29:28,263 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-19 21:29:28,264 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-19 21:29:28,348 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 21:29:28,367 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-19 21:29:28,368 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-19 21:29:28,393 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 21:29:28,504 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-19 21:29:28,505 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-19 21:29:28,523 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:29:28,524 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-19 21:29:28,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:29:28 BoogieIcfgContainer [2020-07-19 21:29:28,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:29:28,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:29:28,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:29:28,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:29:28,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:29:26" (1/3) ... [2020-07-19 21:29:28,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2b1d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:29:28, skipping insertion in model container [2020-07-19 21:29:28,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:29:27" (2/3) ... [2020-07-19 21:29:28,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2b1d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:29:28, skipping insertion in model container [2020-07-19 21:29:28,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:29:28" (3/3) ... [2020-07-19 21:29:28,539 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-19 21:29:28,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:29:28,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:29:28,575 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:29:28,603 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:29:28,603 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:29:28,603 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:29:28,604 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:29:28,604 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:29:28,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:29:28,604 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:29:28,605 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:29:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-07-19 21:29:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-19 21:29:28,641 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:28,643 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] [2020-07-19 21:29:28,643 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:28,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:28,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2020-07-19 21:29:28,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:28,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547878130] [2020-07-19 21:29:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:29,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547878130] [2020-07-19 21:29:29,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:29,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 21:29:29,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881045873] [2020-07-19 21:29:29,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:29:29,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:29,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:29:29,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:29:29,110 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-07-19 21:29:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:30,210 INFO L93 Difference]: Finished difference Result 418 states and 629 transitions. [2020-07-19 21:29:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:29:30,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-07-19 21:29:30,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:30,231 INFO L225 Difference]: With dead ends: 418 [2020-07-19 21:29:30,231 INFO L226 Difference]: Without dead ends: 259 [2020-07-19 21:29:30,238 INFO L675 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 [2020-07-19 21:29:30,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-19 21:29:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2020-07-19 21:29:30,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-19 21:29:30,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2020-07-19 21:29:30,315 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2020-07-19 21:29:30,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:30,316 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2020-07-19 21:29:30,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:29:30,316 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2020-07-19 21:29:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-19 21:29:30,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:30,318 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] [2020-07-19 21:29:30,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:29:30,318 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:30,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2020-07-19 21:29:30,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:30,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224849805] [2020-07-19 21:29:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:30,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224849805] [2020-07-19 21:29:30,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:30,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:29:30,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684720142] [2020-07-19 21:29:30,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:29:30,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:30,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:29:30,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:29:30,627 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand 6 states. [2020-07-19 21:29:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:31,877 INFO L93 Difference]: Finished difference Result 410 states and 565 transitions. [2020-07-19 21:29:31,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:29:31,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-19 21:29:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:31,887 INFO L225 Difference]: With dead ends: 410 [2020-07-19 21:29:31,887 INFO L226 Difference]: Without dead ends: 349 [2020-07-19 21:29:31,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:31,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-07-19 21:29:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2020-07-19 21:29:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-07-19 21:29:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 415 transitions. [2020-07-19 21:29:31,936 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 415 transitions. Word has length 28 [2020-07-19 21:29:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:31,937 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 415 transitions. [2020-07-19 21:29:31,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:29:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 415 transitions. [2020-07-19 21:29:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-19 21:29:31,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:31,939 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:29:31,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:29:31,939 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:31,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:31,940 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2020-07-19 21:29:31,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:31,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833000888] [2020-07-19 21:29:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:32,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833000888] [2020-07-19 21:29:32,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:32,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:29:32,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506805800] [2020-07-19 21:29:32,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:29:32,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:32,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:29:32,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:29:32,125 INFO L87 Difference]: Start difference. First operand 304 states and 415 transitions. Second operand 6 states. [2020-07-19 21:29:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:32,929 INFO L93 Difference]: Finished difference Result 487 states and 647 transitions. [2020-07-19 21:29:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:29:32,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-19 21:29:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:32,934 INFO L225 Difference]: With dead ends: 487 [2020-07-19 21:29:32,934 INFO L226 Difference]: Without dead ends: 368 [2020-07-19 21:29:32,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:32,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-19 21:29:32,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 344. [2020-07-19 21:29:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-07-19 21:29:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 466 transitions. [2020-07-19 21:29:32,972 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 466 transitions. Word has length 28 [2020-07-19 21:29:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:32,973 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 466 transitions. [2020-07-19 21:29:32,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:29:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 466 transitions. [2020-07-19 21:29:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-19 21:29:32,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:32,976 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] [2020-07-19 21:29:32,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:29:32,976 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:32,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2020-07-19 21:29:32,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:32,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476093903] [2020-07-19 21:29:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:33,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476093903] [2020-07-19 21:29:33,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:33,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:29:33,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081272011] [2020-07-19 21:29:33,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:29:33,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:33,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:29:33,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:29:33,171 INFO L87 Difference]: Start difference. First operand 344 states and 466 transitions. Second operand 6 states. [2020-07-19 21:29:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:34,014 INFO L93 Difference]: Finished difference Result 347 states and 468 transitions. [2020-07-19 21:29:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:29:34,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-19 21:29:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:34,021 INFO L225 Difference]: With dead ends: 347 [2020-07-19 21:29:34,022 INFO L226 Difference]: Without dead ends: 343 [2020-07-19 21:29:34,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:29:34,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-19 21:29:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2020-07-19 21:29:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-07-19 21:29:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2020-07-19 21:29:34,085 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 38 [2020-07-19 21:29:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:34,085 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2020-07-19 21:29:34,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:29:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2020-07-19 21:29:34,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 21:29:34,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:34,098 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] [2020-07-19 21:29:34,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:29:34,099 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:34,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2020-07-19 21:29:34,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:34,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612419324] [2020-07-19 21:29:34,102 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:34,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612419324] [2020-07-19 21:29:34,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:34,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:29:34,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106529381] [2020-07-19 21:29:34,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:29:34,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:34,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:29:34,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:34,332 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand 8 states. [2020-07-19 21:29:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:35,362 INFO L93 Difference]: Finished difference Result 394 states and 520 transitions. [2020-07-19 21:29:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 21:29:35,369 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-07-19 21:29:35,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:35,371 INFO L225 Difference]: With dead ends: 394 [2020-07-19 21:29:35,372 INFO L226 Difference]: Without dead ends: 325 [2020-07-19 21:29:35,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:29:35,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-19 21:29:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2020-07-19 21:29:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-07-19 21:29:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2020-07-19 21:29:35,394 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 46 [2020-07-19 21:29:35,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:35,395 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2020-07-19 21:29:35,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:29:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2020-07-19 21:29:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-19 21:29:35,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:35,397 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] [2020-07-19 21:29:35,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 21:29:35,398 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:35,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:35,398 INFO L82 PathProgramCache]: Analyzing trace with hash 750041855, now seen corresponding path program 1 times [2020-07-19 21:29:35,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:35,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378947517] [2020-07-19 21:29:35,399 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:35,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378947517] [2020-07-19 21:29:35,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:35,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:29:35,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935725830] [2020-07-19 21:29:35,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:29:35,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:35,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:29:35,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:35,587 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand 8 states. [2020-07-19 21:29:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:36,067 INFO L93 Difference]: Finished difference Result 316 states and 421 transitions. [2020-07-19 21:29:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:29:36,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-07-19 21:29:36,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:36,071 INFO L225 Difference]: With dead ends: 316 [2020-07-19 21:29:36,071 INFO L226 Difference]: Without dead ends: 300 [2020-07-19 21:29:36,072 INFO L675 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 [2020-07-19 21:29:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-07-19 21:29:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 270. [2020-07-19 21:29:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-19 21:29:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 364 transitions. [2020-07-19 21:29:36,095 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 364 transitions. Word has length 45 [2020-07-19 21:29:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:36,095 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 364 transitions. [2020-07-19 21:29:36,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:29:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 364 transitions. [2020-07-19 21:29:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 21:29:36,097 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:36,097 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] [2020-07-19 21:29:36,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 21:29:36,098 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:36,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:36,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1784783245, now seen corresponding path program 1 times [2020-07-19 21:29:36,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:36,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679481633] [2020-07-19 21:29:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:36,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:36,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679481633] [2020-07-19 21:29:36,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:36,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:29:36,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824826042] [2020-07-19 21:29:36,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:29:36,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:36,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:29:36,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:36,317 INFO L87 Difference]: Start difference. First operand 270 states and 364 transitions. Second operand 8 states. [2020-07-19 21:29:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:37,270 INFO L93 Difference]: Finished difference Result 290 states and 385 transitions. [2020-07-19 21:29:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:29:37,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-07-19 21:29:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:37,273 INFO L225 Difference]: With dead ends: 290 [2020-07-19 21:29:37,273 INFO L226 Difference]: Without dead ends: 242 [2020-07-19 21:29:37,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:29:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-07-19 21:29:37,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-07-19 21:29:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-07-19 21:29:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2020-07-19 21:29:37,299 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 46 [2020-07-19 21:29:37,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:37,319 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-07-19 21:29:37,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:29:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2020-07-19 21:29:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 21:29:37,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:37,321 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] [2020-07-19 21:29:37,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 21:29:37,321 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:37,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:37,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2020-07-19 21:29:37,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:37,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898761690] [2020-07-19 21:29:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:37,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898761690] [2020-07-19 21:29:37,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:37,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:29:37,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326842376] [2020-07-19 21:29:37,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:29:37,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:37,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:29:37,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:37,526 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand 8 states. [2020-07-19 21:29:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:38,136 INFO L93 Difference]: Finished difference Result 270 states and 354 transitions. [2020-07-19 21:29:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:29:38,136 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-07-19 21:29:38,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:38,138 INFO L225 Difference]: With dead ends: 270 [2020-07-19 21:29:38,139 INFO L226 Difference]: Without dead ends: 240 [2020-07-19 21:29:38,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:29:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-19 21:29:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-07-19 21:29:38,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-19 21:29:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2020-07-19 21:29:38,157 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2020-07-19 21:29:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:38,158 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2020-07-19 21:29:38,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:29:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2020-07-19 21:29:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 21:29:38,159 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:38,160 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] [2020-07-19 21:29:38,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 21:29:38,160 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:38,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2020-07-19 21:29:38,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:38,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038964281] [2020-07-19 21:29:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:38,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038964281] [2020-07-19 21:29:38,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:38,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 21:29:38,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753199931] [2020-07-19 21:29:38,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 21:29:38,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:38,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 21:29:38,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:29:38,363 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand 9 states. [2020-07-19 21:29:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:39,681 INFO L93 Difference]: Finished difference Result 313 states and 400 transitions. [2020-07-19 21:29:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:29:39,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-07-19 21:29:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:39,685 INFO L225 Difference]: With dead ends: 313 [2020-07-19 21:29:39,685 INFO L226 Difference]: Without dead ends: 307 [2020-07-19 21:29:39,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:29:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-07-19 21:29:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 274. [2020-07-19 21:29:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-07-19 21:29:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 356 transitions. [2020-07-19 21:29:39,708 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 356 transitions. Word has length 51 [2020-07-19 21:29:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:39,709 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 356 transitions. [2020-07-19 21:29:39,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 21:29:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 356 transitions. [2020-07-19 21:29:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 21:29:39,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:39,711 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] [2020-07-19 21:29:39,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 21:29:39,711 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:39,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:39,712 INFO L82 PathProgramCache]: Analyzing trace with hash -855964733, now seen corresponding path program 1 times [2020-07-19 21:29:39,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:39,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481249207] [2020-07-19 21:29:39,712 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:39,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:39,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481249207] [2020-07-19 21:29:39,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:39,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-19 21:29:39,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785294626] [2020-07-19 21:29:39,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 21:29:39,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:39,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 21:29:39,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:29:39,954 INFO L87 Difference]: Start difference. First operand 274 states and 356 transitions. Second operand 13 states. [2020-07-19 21:29:42,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:42,031 INFO L93 Difference]: Finished difference Result 325 states and 410 transitions. [2020-07-19 21:29:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-19 21:29:42,032 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-19 21:29:42,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:42,036 INFO L225 Difference]: With dead ends: 325 [2020-07-19 21:29:42,036 INFO L226 Difference]: Without dead ends: 284 [2020-07-19 21:29:42,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2020-07-19 21:29:42,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-07-19 21:29:42,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 240. [2020-07-19 21:29:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-19 21:29:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2020-07-19 21:29:42,070 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 52 [2020-07-19 21:29:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:42,070 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2020-07-19 21:29:42,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 21:29:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2020-07-19 21:29:42,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 21:29:42,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:42,073 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] [2020-07-19 21:29:42,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 21:29:42,074 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:42,074 INFO L82 PathProgramCache]: Analyzing trace with hash 240184037, now seen corresponding path program 1 times [2020-07-19 21:29:42,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:42,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670649783] [2020-07-19 21:29:42,080 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:42,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670649783] [2020-07-19 21:29:42,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:42,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 21:29:42,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723807137] [2020-07-19 21:29:42,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 21:29:42,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:42,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 21:29:42,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:29:42,393 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand 12 states. [2020-07-19 21:29:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:43,549 INFO L93 Difference]: Finished difference Result 252 states and 327 transitions. [2020-07-19 21:29:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:29:43,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-07-19 21:29:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:43,552 INFO L225 Difference]: With dead ends: 252 [2020-07-19 21:29:43,553 INFO L226 Difference]: Without dead ends: 211 [2020-07-19 21:29:43,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:29:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-19 21:29:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-19 21:29:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-19 21:29:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2020-07-19 21:29:43,571 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 53 [2020-07-19 21:29:43,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:43,571 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2020-07-19 21:29:43,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 21:29:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2020-07-19 21:29:43,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-19 21:29:43,573 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:43,573 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] [2020-07-19 21:29:43,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-19 21:29:43,574 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:43,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:43,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1569125, now seen corresponding path program 1 times [2020-07-19 21:29:43,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:43,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755497029] [2020-07-19 21:29:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:43,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755497029] [2020-07-19 21:29:43,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:43,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-19 21:29:43,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066392328] [2020-07-19 21:29:43,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 21:29:43,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:43,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 21:29:43,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:29:43,845 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand 14 states. [2020-07-19 21:29:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:45,031 INFO L93 Difference]: Finished difference Result 227 states and 292 transitions. [2020-07-19 21:29:45,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 21:29:45,031 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-07-19 21:29:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:45,033 INFO L225 Difference]: With dead ends: 227 [2020-07-19 21:29:45,033 INFO L226 Difference]: Without dead ends: 206 [2020-07-19 21:29:45,034 INFO L675 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 [2020-07-19 21:29:45,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-19 21:29:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-07-19 21:29:45,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-19 21:29:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-19 21:29:45,052 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 54 [2020-07-19 21:29:45,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:45,052 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-19 21:29:45,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 21:29:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-19 21:29:45,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 21:29:45,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:45,054 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] [2020-07-19 21:29:45,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-19 21:29:45,054 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:45,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:45,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1204113239, now seen corresponding path program 1 times [2020-07-19 21:29:45,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:45,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146386318] [2020-07-19 21:29:45,055 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:45,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146386318] [2020-07-19 21:29:45,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:45,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 21:29:45,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92757985] [2020-07-19 21:29:45,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 21:29:45,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:45,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 21:29:45,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:29:45,347 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 11 states. [2020-07-19 21:29:46,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:46,173 INFO L93 Difference]: Finished difference Result 296 states and 379 transitions. [2020-07-19 21:29:46,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 21:29:46,173 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-07-19 21:29:46,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:46,176 INFO L225 Difference]: With dead ends: 296 [2020-07-19 21:29:46,176 INFO L226 Difference]: Without dead ends: 224 [2020-07-19 21:29:46,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:29:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-19 21:29:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2020-07-19 21:29:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-19 21:29:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 278 transitions. [2020-07-19 21:29:46,196 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 278 transitions. Word has length 57 [2020-07-19 21:29:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:46,196 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 278 transitions. [2020-07-19 21:29:46,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 21:29:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 278 transitions. [2020-07-19 21:29:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 21:29:46,198 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:46,198 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] [2020-07-19 21:29:46,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-19 21:29:46,199 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:46,199 INFO L82 PathProgramCache]: Analyzing trace with hash -527681510, now seen corresponding path program 1 times [2020-07-19 21:29:46,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:46,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668841228] [2020-07-19 21:29:46,200 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:46,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668841228] [2020-07-19 21:29:46,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:46,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 21:29:46,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983961635] [2020-07-19 21:29:46,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 21:29:46,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:46,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 21:29:46,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:29:46,414 INFO L87 Difference]: Start difference. First operand 214 states and 278 transitions. Second operand 11 states. [2020-07-19 21:29:47,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:47,323 INFO L93 Difference]: Finished difference Result 232 states and 299 transitions. [2020-07-19 21:29:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 21:29:47,324 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-07-19 21:29:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:47,326 INFO L225 Difference]: With dead ends: 232 [2020-07-19 21:29:47,326 INFO L226 Difference]: Without dead ends: 225 [2020-07-19 21:29:47,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-07-19 21:29:47,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-19 21:29:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 215. [2020-07-19 21:29:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-07-19 21:29:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 279 transitions. [2020-07-19 21:29:47,344 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 279 transitions. Word has length 57 [2020-07-19 21:29:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:47,345 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 279 transitions. [2020-07-19 21:29:47,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 21:29:47,345 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 279 transitions. [2020-07-19 21:29:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-19 21:29:47,346 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:47,346 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] [2020-07-19 21:29:47,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-19 21:29:47,347 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:47,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:47,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1045578754, now seen corresponding path program 1 times [2020-07-19 21:29:47,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:47,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501004665] [2020-07-19 21:29:47,348 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:47,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501004665] [2020-07-19 21:29:47,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:47,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:29:47,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64686917] [2020-07-19 21:29:47,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:29:47,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:47,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:29:47,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:29:47,532 INFO L87 Difference]: Start difference. First operand 215 states and 279 transitions. Second operand 8 states. [2020-07-19 21:29:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:48,046 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2020-07-19 21:29:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:29:48,047 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2020-07-19 21:29:48,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:48,049 INFO L225 Difference]: With dead ends: 258 [2020-07-19 21:29:48,049 INFO L226 Difference]: Without dead ends: 214 [2020-07-19 21:29:48,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:29:48,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-19 21:29:48,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-07-19 21:29:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-19 21:29:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2020-07-19 21:29:48,068 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 60 [2020-07-19 21:29:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:48,069 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2020-07-19 21:29:48,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:29:48,069 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2020-07-19 21:29:48,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 21:29:48,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:48,070 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] [2020-07-19 21:29:48,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-19 21:29:48,071 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:48,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:48,071 INFO L82 PathProgramCache]: Analyzing trace with hash -930292561, now seen corresponding path program 1 times [2020-07-19 21:29:48,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:48,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063459515] [2020-07-19 21:29:48,072 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:48,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:48,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063459515] [2020-07-19 21:29:48,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:48,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-19 21:29:48,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277042031] [2020-07-19 21:29:48,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-19 21:29:48,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:48,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-19 21:29:48,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:29:48,418 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand 15 states. [2020-07-19 21:29:49,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:49,658 INFO L93 Difference]: Finished difference Result 226 states and 286 transitions. [2020-07-19 21:29:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 21:29:49,659 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-07-19 21:29:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:49,661 INFO L225 Difference]: With dead ends: 226 [2020-07-19 21:29:49,661 INFO L226 Difference]: Without dead ends: 188 [2020-07-19 21:29:49,662 INFO L675 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 [2020-07-19 21:29:49,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-07-19 21:29:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-07-19 21:29:49,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-19 21:29:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 236 transitions. [2020-07-19 21:29:49,677 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 236 transitions. Word has length 61 [2020-07-19 21:29:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:49,678 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 236 transitions. [2020-07-19 21:29:49,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-19 21:29:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 236 transitions. [2020-07-19 21:29:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-19 21:29:49,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:49,679 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] [2020-07-19 21:29:49,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-19 21:29:49,680 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:49,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:49,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1127735086, now seen corresponding path program 1 times [2020-07-19 21:29:49,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:49,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639927153] [2020-07-19 21:29:49,681 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:49,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639927153] [2020-07-19 21:29:49,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:49,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-19 21:29:49,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474072077] [2020-07-19 21:29:49,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-19 21:29:49,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:49,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-19 21:29:49,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:29:49,985 INFO L87 Difference]: Start difference. First operand 188 states and 236 transitions. Second operand 15 states. [2020-07-19 21:29:50,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:50,927 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2020-07-19 21:29:50,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 21:29:50,928 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-07-19 21:29:50,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:50,931 INFO L225 Difference]: With dead ends: 200 [2020-07-19 21:29:50,931 INFO L226 Difference]: Without dead ends: 186 [2020-07-19 21:29:50,931 INFO L675 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 [2020-07-19 21:29:50,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-07-19 21:29:50,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-07-19 21:29:50,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-19 21:29:50,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 232 transitions. [2020-07-19 21:29:50,949 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 232 transitions. Word has length 56 [2020-07-19 21:29:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:50,949 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 232 transitions. [2020-07-19 21:29:50,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-19 21:29:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 232 transitions. [2020-07-19 21:29:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-19 21:29:50,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:50,950 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] [2020-07-19 21:29:50,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-19 21:29:50,951 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:50,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1554463583, now seen corresponding path program 1 times [2020-07-19 21:29:50,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:50,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014399011] [2020-07-19 21:29:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:51,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014399011] [2020-07-19 21:29:51,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:51,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-19 21:29:51,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276309471] [2020-07-19 21:29:51,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 21:29:51,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:51,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 21:29:51,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:29:51,226 INFO L87 Difference]: Start difference. First operand 186 states and 232 transitions. Second operand 13 states. [2020-07-19 21:29:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:52,349 INFO L93 Difference]: Finished difference Result 237 states and 286 transitions. [2020-07-19 21:29:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-19 21:29:52,350 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-19 21:29:52,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:52,354 INFO L225 Difference]: With dead ends: 237 [2020-07-19 21:29:52,354 INFO L226 Difference]: Without dead ends: 220 [2020-07-19 21:29:52,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-07-19 21:29:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-19 21:29:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 190. [2020-07-19 21:29:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-19 21:29:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2020-07-19 21:29:52,378 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 237 transitions. Word has length 55 [2020-07-19 21:29:52,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:52,379 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 237 transitions. [2020-07-19 21:29:52,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 21:29:52,379 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2020-07-19 21:29:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-19 21:29:52,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:52,380 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] [2020-07-19 21:29:52,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-19 21:29:52,381 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:52,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:52,381 INFO L82 PathProgramCache]: Analyzing trace with hash -725184292, now seen corresponding path program 1 times [2020-07-19 21:29:52,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:52,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399886231] [2020-07-19 21:29:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:52,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399886231] [2020-07-19 21:29:52,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:52,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-19 21:29:52,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089528617] [2020-07-19 21:29:52,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 21:29:52,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:52,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 21:29:52,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:29:52,720 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. Second operand 14 states. [2020-07-19 21:29:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:53,597 INFO L93 Difference]: Finished difference Result 206 states and 253 transitions. [2020-07-19 21:29:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 21:29:53,598 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-07-19 21:29:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:53,599 INFO L225 Difference]: With dead ends: 206 [2020-07-19 21:29:53,599 INFO L226 Difference]: Without dead ends: 168 [2020-07-19 21:29:53,600 INFO L675 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 [2020-07-19 21:29:53,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-19 21:29:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-07-19 21:29:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-19 21:29:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 194 transitions. [2020-07-19 21:29:53,615 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 194 transitions. Word has length 55 [2020-07-19 21:29:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:53,616 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 194 transitions. [2020-07-19 21:29:53,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 21:29:53,616 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 194 transitions. [2020-07-19 21:29:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 21:29:53,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:53,617 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] [2020-07-19 21:29:53,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-19 21:29:53,618 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:53,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:53,618 INFO L82 PathProgramCache]: Analyzing trace with hash -639520605, now seen corresponding path program 1 times [2020-07-19 21:29:53,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:53,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834531980] [2020-07-19 21:29:53,619 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:29:53,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:29:53,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834531980] [2020-07-19 21:29:53,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:29:53,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 21:29:53,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223665979] [2020-07-19 21:29:53,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 21:29:53,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:29:53,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 21:29:53,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:29:53,898 INFO L87 Difference]: Start difference. First operand 168 states and 194 transitions. Second operand 10 states. [2020-07-19 21:29:54,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:29:54,233 INFO L93 Difference]: Finished difference Result 204 states and 235 transitions. [2020-07-19 21:29:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 21:29:54,233 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-07-19 21:29:54,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:29:54,235 INFO L225 Difference]: With dead ends: 204 [2020-07-19 21:29:54,235 INFO L226 Difference]: Without dead ends: 162 [2020-07-19 21:29:54,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:29:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-19 21:29:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-07-19 21:29:54,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-07-19 21:29:54,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 185 transitions. [2020-07-19 21:29:54,256 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 185 transitions. Word has length 58 [2020-07-19 21:29:54,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:29:54,256 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 185 transitions. [2020-07-19 21:29:54,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 21:29:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 185 transitions. [2020-07-19 21:29:54,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-19 21:29:54,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:29:54,260 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] [2020-07-19 21:29:54,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-19 21:29:54,260 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:29:54,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:29:54,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2020-07-19 21:29:54,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:29:54,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951184911] [2020-07-19 21:29:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@245e53af [2020-07-19 21:29:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:29:54,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:29:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:29:54,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:29:54,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:29:54,408 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:29:54,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-19 21:29:54,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:29:54 BoogieIcfgContainer [2020-07-19 21:29:54,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:29:54,578 INFO L168 Benchmark]: Toolchain (without parser) took 27775.44 ms. Allocated memory was 145.2 MB in the beginning and 520.6 MB in the end (delta: 375.4 MB). Free memory was 102.4 MB in the beginning and 311.1 MB in the end (delta: -208.7 MB). Peak memory consumption was 166.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:29:54,578 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:29:54,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.07 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 102.0 MB in the beginning and 175.6 MB in the end (delta: -73.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:29:54,579 INFO L168 Benchmark]: Boogie Preprocessor took 85.42 ms. Allocated memory is still 203.4 MB. Free memory was 175.6 MB in the beginning and 172.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:29:54,580 INFO L168 Benchmark]: RCFGBuilder took 967.15 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 101.1 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:29:54,581 INFO L168 Benchmark]: TraceAbstraction took 26043.49 ms. Allocated memory was 203.4 MB in the beginning and 520.6 MB in the end (delta: 317.2 MB). Free memory was 101.1 MB in the beginning and 311.1 MB in the end (delta: -210.0 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:29:54,583 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.07 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 102.0 MB in the beginning and 175.6 MB in the end (delta: -73.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.42 ms. Allocated memory is still 203.4 MB. Free memory was 175.6 MB in the beginning and 172.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 967.15 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 101.1 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26043.49 ms. Allocated memory was 203.4 MB in the beginning and 520.6 MB in the end (delta: 317.2 MB). Free memory was 101.1 MB in the beginning and 311.1 MB in the end (delta: -210.0 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1011]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int KernelMode ; [L22] int Executive ; [L23] int DevicePowerState ; [L24] int s ; [L25] int UNLOADED ; [L26] int NP ; [L27] int DC ; [L28] int SKIP1 ; [L29] int SKIP2 ; [L30] int MPR1 ; [L31] int MPR3 ; [L32] int IPC ; [L33] int pended ; [L34] int compFptr ; [L35] int compRegistered ; [L36] int lowerDriverReturn ; [L37] int setEventCalled ; [L38] int customIrp ; [L39] int myStatus ; VAL [\old(compFptr)=21, \old(compRegistered)=13, \old(customIrp)=16, \old(DC)=9, \old(DevicePowerState)=22, \old(Executive)=14, \old(IPC)=10, \old(KernelMode)=26, \old(lowerDriverReturn)=24, \old(MPR1)=20, \old(MPR3)=18, \old(myStatus)=23, \old(NP)=15, \old(pended)=25, \old(s)=11, \old(setEventCalled)=19, \old(SKIP1)=17, \old(SKIP2)=12, \old(UNLOADED)=8, 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] [L292] int status ; [L293] int irp = __VERIFIER_nondet_int() ; [L294] int pirp ; [L295] int pirp__IoStatus__Status ; [L296] int irp_choice = __VERIFIER_nondet_int() ; [L297] int devobj = __VERIFIER_nondet_int() ; [L298] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] DevicePowerState = 1 [L303] s = 0 [L304] UNLOADED = 0 [L305] NP = 0 [L306] DC = 0 [L307] SKIP1 = 0 [L308] SKIP2 = 0 [L309] MPR1 = 0 [L310] MPR3 = 0 [L311] IPC = 0 [L312] pended = 0 [L313] compFptr = 0 [L314] compRegistered = 0 [L315] lowerDriverReturn = 0 [L316] setEventCalled = 0 [L317] customIrp = 0 [L318] myStatus = 0 [L322] status = 0 [L323] 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=2, Executive=0, IPC=0, irp=-2, irp_choice=1, 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] [L324] 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] [L59] UNLOADED = 0 [L60] NP = 1 [L61] DC = 2 [L62] SKIP1 = 3 [L63] SKIP2 = 4 [L64] MPR1 = 5 [L65] MPR3 = 6 [L66] IPC = 7 [L67] s = UNLOADED [L68] pended = 0 [L69] compFptr = 0 [L70] compRegistered = 0 [L71] lowerDriverReturn = 0 [L72] setEventCalled = 0 [L73] 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] [L324] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, 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] [L326] COND TRUE status >= 0 [L327] s = NP [L328] customIrp = 0 [L329] setEventCalled = customIrp [L330] lowerDriverReturn = setEventCalled [L331] compRegistered = lowerDriverReturn [L332] pended = compRegistered [L333] pirp__IoStatus__Status = 0 [L334] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, 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] [L335] COND FALSE !(irp_choice == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, 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] [L340] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L45] s = NP [L46] pended = 0 [L47] compFptr = 0 [L48] compRegistered = 0 [L49] lowerDriverReturn = 0 [L50] setEventCalled = 0 [L51] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L340] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, 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] [L343] COND FALSE !(status < 0) [L347] int tmp_ndt_1; [L348] tmp_ndt_1 = __VERIFIER_nondet_int() [L349] COND FALSE !(tmp_ndt_1 == 0) [L352] int tmp_ndt_2; [L353] tmp_ndt_2 = __VERIFIER_nondet_int() [L354] COND FALSE !(tmp_ndt_2 == 1) [L357] int tmp_ndt_3; [L358] tmp_ndt_3 = __VERIFIER_nondet_int() [L359] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, 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, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L386] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L78] int devExt ; [L79] int irpStack ; [L80] int status ; [L81] int event = __VERIFIER_nondet_int() ; [L82] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L83] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L84] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L85] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L86] int devExt__Started ; [L87] int devExt__Removed ; [L88] int devExt__SurpriseRemoved ; [L89] int Irp__IoStatus__Status ; [L90] int Irp__IoStatus__Information ; [L91] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L92] int irpSp ; [L93] int nextIrpSp ; [L94] int nextIrpSp__Control ; [L95] int irpSp___0 ; [L96] int irpSp__Context ; [L97] int irpSp__Control ; [L98] long __cil_tmp23 ; [L101] status = 0 [L102] devExt = DeviceObject__DeviceExtension [L103] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L104] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L107] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L110] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L234] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L235] COND TRUE s == NP [L236] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L243] Irp__CurrentLocation ++ [L244] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L481] int returnVal2 ; [L482] int compRetStatus ; [L483] int lcontext = __VERIFIER_nondet_int() ; [L484] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L487] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L500] int tmp_ndt_6; [L501] tmp_ndt_6 = __VERIFIER_nondet_int() [L502] COND FALSE !(tmp_ndt_6 == 0) [L505] int tmp_ndt_7; [L506] tmp_ndt_7 = __VERIFIER_nondet_int() [L507] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L516] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L526] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L530] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L539] COND TRUE s == SKIP1 [L540] s = SKIP2 [L541] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L549] 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)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-4, tmp_ndt_7=1, UNLOADED=0] [L245] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L246] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L288] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \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)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=0, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=0, 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=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L386] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L386] status = KbFilter_PnP(devobj, pirp) [L410] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L418] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L426] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L427] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L428] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L438] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L445] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L450] 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=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L451] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1011] __VERIFIER_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.8s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4631 SDtfs, 6124 SDslu, 7828 SDs, 0 SdLazy, 16026 SolverSat, 1270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 406 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 275 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 953 ConstructedInterpolants, 0 QuantifiedInterpolants, 212466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...