/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -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-d623d84 [2020-07-21 22:34:25,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:34:25,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:34:25,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:34:25,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:34:25,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:34:25,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:34:25,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:34:25,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:34:25,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:34:25,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:34:25,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:34:25,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:34:25,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:34:25,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:34:25,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:34:25,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:34:25,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:34:25,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:34:25,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:34:25,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:34:25,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:34:25,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:34:25,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:34:25,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 22:34:25,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 22:34:25,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 22:34:25,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 22:34:25,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 22:34:25,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 22:34:25,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 22:34:25,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 22:34:25,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 22:34:25,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 22:34:25,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 22:34:25,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 22:34:25,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 22:34:25,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 22:34:25,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:34:25,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:34:25,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:34:25,104 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 [2020-07-21 22:34:25,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:34:25,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:34:25,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:34:25,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:34:25,121 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:34:25,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:34:25,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:34:25,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:34:25,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:34:25,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:34:25,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:34:25,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:34:25,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:34:25,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:34:25,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:34:25,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:34:25,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:34:25,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:34:25,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:34:25,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:34:25,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:34:25,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:34:25,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:34:25,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:34:25,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:34:25,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:34:25,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:25,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:34:25,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:34:25,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:34:25,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:34:25,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:34:25,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:34:25,439 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:34:25,439 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:34:25,440 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-21 22:34:25,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0912f370/3f80a1dd588d4f88bc40d1ad95916fee/FLAG8ea5b51a4 [2020-07-21 22:34:26,065 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:34:26,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-21 22:34:26,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0912f370/3f80a1dd588d4f88bc40d1ad95916fee/FLAG8ea5b51a4 [2020-07-21 22:34:26,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0912f370/3f80a1dd588d4f88bc40d1ad95916fee [2020-07-21 22:34:26,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:34:26,422 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:34:26,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:34:26,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:34:26,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:34:26,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:34:26" (1/1) ... [2020-07-21 22:34:26,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21521c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:26, skipping insertion in model container [2020-07-21 22:34:26,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:34:26" (1/1) ... [2020-07-21 22:34:26,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:34:26,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:34:26,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:34:26,827 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:34:27,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:34:27,070 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:34:27,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27 WrapperNode [2020-07-21 22:34:27,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:34:27,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:34:27,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:34:27,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:34:27,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (1/1) ... [2020-07-21 22:34:27,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:34:27,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:34:27,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:34:27,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:34:27,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (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 [2020-07-21 22:34:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:34:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:34:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-21 22:34:27,212 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-21 22:34:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-21 22:34:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:34:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-21 22:34:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-21 22:34:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-21 22:34:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-21 22:34:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-21 22:34:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-21 22:34:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-21 22:34:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-21 22:34:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-21 22:34:27,214 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-21 22:34:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-21 22:34:27,215 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-21 22:34:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:34:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-21 22:34:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:34:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-21 22:34:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-21 22:34:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-21 22:34:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-21 22:34:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-21 22:34:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-21 22:34:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-21 22:34:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-21 22:34:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-21 22:34:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-21 22:34:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-21 22:34:27,217 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-21 22:34:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-21 22:34:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-21 22:34:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-21 22:34:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:34:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-21 22:34:27,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:34:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:34:27,523 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 22:34:27,595 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-21 22:34:27,595 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-21 22:34:27,621 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 22:34:27,756 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-21 22:34:27,757 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-21 22:34:27,759 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 22:34:27,794 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-21 22:34:27,794 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-21 22:34:27,800 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 22:34:27,840 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-21 22:34:27,840 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-21 22:34:27,941 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 22:34:27,958 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-21 22:34:27,958 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-21 22:34:27,979 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 22:34:28,070 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-21 22:34:28,070 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-21 22:34:28,089 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:34:28,090 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:34:28,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:34:28 BoogieIcfgContainer [2020-07-21 22:34:28,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:34:28,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:34:28,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:34:28,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:34:28,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:34:26" (1/3) ... [2020-07-21 22:34:28,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f477d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:34:28, skipping insertion in model container [2020-07-21 22:34:28,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:34:27" (2/3) ... [2020-07-21 22:34:28,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f477d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:34:28, skipping insertion in model container [2020-07-21 22:34:28,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:34:28" (3/3) ... [2020-07-21 22:34:28,106 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-21 22:34:28,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:34:28,125 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:34:28,140 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:34:28,166 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:34:28,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:34:28,167 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:34:28,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:34:28,167 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:34:28,167 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:34:28,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:34:28,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:34:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-07-21 22:34:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 22:34:28,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:28,200 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] [2020-07-21 22:34:28,200 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:28,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2020-07-21 22:34:28,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:28,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673068242] [2020-07-21 22:34:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:28,433 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:34:28,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:28,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 22:34:28,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:28,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:28,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673068242] [2020-07-21 22:34:28,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:28,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:28,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820247491] [2020-07-21 22:34:28,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:28,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:28,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:28,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:28,533 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 3 states. [2020-07-21 22:34:28,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:28,677 INFO L93 Difference]: Finished difference Result 390 states and 586 transitions. [2020-07-21 22:34:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:28,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-07-21 22:34:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:28,707 INFO L225 Difference]: With dead ends: 390 [2020-07-21 22:34:28,708 INFO L226 Difference]: Without dead ends: 231 [2020-07-21 22:34:28,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-21 22:34:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-07-21 22:34:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-21 22:34:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2020-07-21 22:34:28,836 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2020-07-21 22:34:28,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:28,837 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2020-07-21 22:34:28,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:28,838 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2020-07-21 22:34:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-21 22:34:28,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:28,841 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] [2020-07-21 22:34:29,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:29,056 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:29,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:29,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2020-07-21 22:34:29,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:29,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684440835] [2020-07-21 22:34:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:29,205 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:29,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:29,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 22:34:29,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:29,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:29,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684440835] [2020-07-21 22:34:29,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:29,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:29,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464824880] [2020-07-21 22:34:29,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:29,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:29,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:29,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:29,236 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand 3 states. [2020-07-21 22:34:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:29,397 INFO L93 Difference]: Finished difference Result 375 states and 514 transitions. [2020-07-21 22:34:29,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:29,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-21 22:34:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:29,401 INFO L225 Difference]: With dead ends: 375 [2020-07-21 22:34:29,402 INFO L226 Difference]: Without dead ends: 314 [2020-07-21 22:34:29,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-07-21 22:34:29,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 298. [2020-07-21 22:34:29,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-21 22:34:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 408 transitions. [2020-07-21 22:34:29,434 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 408 transitions. Word has length 28 [2020-07-21 22:34:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:29,434 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 408 transitions. [2020-07-21 22:34:29,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:29,435 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 408 transitions. [2020-07-21 22:34:29,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-21 22:34:29,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:29,436 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] [2020-07-21 22:34:29,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:29,650 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:29,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:29,651 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2020-07-21 22:34:29,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:29,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87741666] [2020-07-21 22:34:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:29,844 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:29,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:29,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:34:29,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:29,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:29,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:29,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87741666] [2020-07-21 22:34:29,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:29,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:29,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677856008] [2020-07-21 22:34:29,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:29,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:29,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:29,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:29,877 INFO L87 Difference]: Start difference. First operand 298 states and 408 transitions. Second operand 3 states. [2020-07-21 22:34:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:29,919 INFO L93 Difference]: Finished difference Result 481 states and 640 transitions. [2020-07-21 22:34:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:29,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-21 22:34:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:29,923 INFO L225 Difference]: With dead ends: 481 [2020-07-21 22:34:29,923 INFO L226 Difference]: Without dead ends: 362 [2020-07-21 22:34:29,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:29,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-07-21 22:34:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 338. [2020-07-21 22:34:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-07-21 22:34:29,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 459 transitions. [2020-07-21 22:34:29,949 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 459 transitions. Word has length 28 [2020-07-21 22:34:29,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:29,950 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 459 transitions. [2020-07-21 22:34:29,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 459 transitions. [2020-07-21 22:34:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-21 22:34:29,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:29,953 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] [2020-07-21 22:34:30,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:30,167 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:30,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:30,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2020-07-21 22:34:30,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:30,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140977594] [2020-07-21 22:34:30,169 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:30,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:30,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:30,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:34:30,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:30,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:30,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140977594] [2020-07-21 22:34:30,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:30,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:30,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285273956] [2020-07-21 22:34:30,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:30,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:30,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:30,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:30,359 INFO L87 Difference]: Start difference. First operand 338 states and 459 transitions. Second operand 3 states. [2020-07-21 22:34:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:30,448 INFO L93 Difference]: Finished difference Result 341 states and 461 transitions. [2020-07-21 22:34:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:30,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-07-21 22:34:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:30,454 INFO L225 Difference]: With dead ends: 341 [2020-07-21 22:34:30,455 INFO L226 Difference]: Without dead ends: 337 [2020-07-21 22:34:30,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-21 22:34:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2020-07-21 22:34:30,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-21 22:34:30,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 456 transitions. [2020-07-21 22:34:30,484 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 456 transitions. Word has length 38 [2020-07-21 22:34:30,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:30,485 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 456 transitions. [2020-07-21 22:34:30,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:30,487 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 456 transitions. [2020-07-21 22:34:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 22:34:30,499 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:30,500 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] [2020-07-21 22:34:30,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:30,714 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:30,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:30,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2020-07-21 22:34:30,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:30,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017688515] [2020-07-21 22:34:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:30,856 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:34:30,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:30,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 22:34:30,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:30,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:30,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:30,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017688515] [2020-07-21 22:34:30,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:30,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:30,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845650302] [2020-07-21 22:34:30,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:30,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:30,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:30,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:30,882 INFO L87 Difference]: Start difference. First operand 337 states and 456 transitions. Second operand 3 states. [2020-07-21 22:34:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:30,908 INFO L93 Difference]: Finished difference Result 388 states and 513 transitions. [2020-07-21 22:34:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:30,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-21 22:34:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:30,911 INFO L225 Difference]: With dead ends: 388 [2020-07-21 22:34:30,912 INFO L226 Difference]: Without dead ends: 319 [2020-07-21 22:34:30,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-07-21 22:34:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 298. [2020-07-21 22:34:30,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-21 22:34:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 399 transitions. [2020-07-21 22:34:30,928 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 399 transitions. Word has length 46 [2020-07-21 22:34:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:30,928 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 399 transitions. [2020-07-21 22:34:30,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 399 transitions. [2020-07-21 22:34:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-21 22:34:30,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:30,930 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] [2020-07-21 22:34:31,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:31,145 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:31,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:31,146 INFO L82 PathProgramCache]: Analyzing trace with hash 750041855, now seen corresponding path program 1 times [2020-07-21 22:34:31,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:31,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163490836] [2020-07-21 22:34:31,147 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:31,316 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:31,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:31,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 22:34:31,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:31,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:31,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163490836] [2020-07-21 22:34:31,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:31,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:31,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161864622] [2020-07-21 22:34:31,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:31,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:31,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:31,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:31,337 INFO L87 Difference]: Start difference. First operand 298 states and 399 transitions. Second operand 3 states. [2020-07-21 22:34:31,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:31,364 INFO L93 Difference]: Finished difference Result 310 states and 414 transitions. [2020-07-21 22:34:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:31,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-21 22:34:31,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:31,367 INFO L225 Difference]: With dead ends: 310 [2020-07-21 22:34:31,367 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 22:34:31,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:31,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 22:34:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 264. [2020-07-21 22:34:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-07-21 22:34:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 357 transitions. [2020-07-21 22:34:31,384 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 357 transitions. Word has length 45 [2020-07-21 22:34:31,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:31,384 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 357 transitions. [2020-07-21 22:34:31,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 357 transitions. [2020-07-21 22:34:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 22:34:31,386 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:31,386 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] [2020-07-21 22:34:31,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:31,602 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:31,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:31,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1784783245, now seen corresponding path program 1 times [2020-07-21 22:34:31,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:31,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204334939] [2020-07-21 22:34:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:31,730 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:31,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:31,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 22:34:31,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:31,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:31,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204334939] [2020-07-21 22:34:31,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:31,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:31,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953693340] [2020-07-21 22:34:31,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:31,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:31,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:31,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:31,759 INFO L87 Difference]: Start difference. First operand 264 states and 357 transitions. Second operand 3 states. [2020-07-21 22:34:31,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:31,827 INFO L93 Difference]: Finished difference Result 284 states and 378 transitions. [2020-07-21 22:34:31,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:31,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-21 22:34:31,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:31,829 INFO L225 Difference]: With dead ends: 284 [2020-07-21 22:34:31,830 INFO L226 Difference]: Without dead ends: 242 [2020-07-21 22:34:31,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-07-21 22:34:31,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-07-21 22:34:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-07-21 22:34:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2020-07-21 22:34:31,843 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 46 [2020-07-21 22:34:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:31,843 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-07-21 22:34:31,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2020-07-21 22:34:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 22:34:31,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:31,845 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] [2020-07-21 22:34:32,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:32,051 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:32,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2020-07-21 22:34:32,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:32,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184326714] [2020-07-21 22:34:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:32,178 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:32,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:32,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 22:34:32,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:32,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:32,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184326714] [2020-07-21 22:34:32,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:32,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:32,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087348941] [2020-07-21 22:34:32,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:32,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:32,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:32,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:32,215 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand 3 states. [2020-07-21 22:34:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:32,297 INFO L93 Difference]: Finished difference Result 270 states and 354 transitions. [2020-07-21 22:34:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:32,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 22:34:32,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:32,300 INFO L225 Difference]: With dead ends: 270 [2020-07-21 22:34:32,300 INFO L226 Difference]: Without dead ends: 240 [2020-07-21 22:34:32,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-21 22:34:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-07-21 22:34:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-21 22:34:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2020-07-21 22:34:32,315 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2020-07-21 22:34:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:32,315 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2020-07-21 22:34:32,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:32,316 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2020-07-21 22:34:32,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 22:34:32,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:32,317 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] [2020-07-21 22:34:32,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:32,532 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:32,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:32,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2020-07-21 22:34:32,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:32,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94697508] [2020-07-21 22:34:32,534 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:32,659 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:34:32,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:32,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:34:32,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:32,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:32,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94697508] [2020-07-21 22:34:32,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:32,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 22:34:32,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732390685] [2020-07-21 22:34:32,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:34:32,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:32,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:34:32,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:34:32,730 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand 6 states. [2020-07-21 22:34:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:33,110 INFO L93 Difference]: Finished difference Result 281 states and 363 transitions. [2020-07-21 22:34:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:34:33,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-07-21 22:34:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:33,114 INFO L225 Difference]: With dead ends: 281 [2020-07-21 22:34:33,114 INFO L226 Difference]: Without dead ends: 240 [2020-07-21 22:34:33,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:34:33,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-21 22:34:33,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-07-21 22:34:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-21 22:34:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2020-07-21 22:34:33,139 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 51 [2020-07-21 22:34:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:33,139 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2020-07-21 22:34:33,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:34:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2020-07-21 22:34:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 22:34:33,142 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:33,143 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] [2020-07-21 22:34:33,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:33,359 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:33,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:33,359 INFO L82 PathProgramCache]: Analyzing trace with hash 240184037, now seen corresponding path program 1 times [2020-07-21 22:34:33,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:33,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819932475] [2020-07-21 22:34:33,361 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:33,489 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:33,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:33,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 22:34:33,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:33,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:33,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819932475] [2020-07-21 22:34:33,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:33,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 22:34:33,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077328420] [2020-07-21 22:34:33,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:34:33,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:33,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:34:33,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:34:33,571 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand 8 states. [2020-07-21 22:34:33,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:33,741 INFO L93 Difference]: Finished difference Result 252 states and 327 transitions. [2020-07-21 22:34:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:34:33,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-07-21 22:34:33,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:33,745 INFO L225 Difference]: With dead ends: 252 [2020-07-21 22:34:33,745 INFO L226 Difference]: Without dead ends: 211 [2020-07-21 22:34:33,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:34:33,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-21 22:34:33,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-21 22:34:33,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-21 22:34:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2020-07-21 22:34:33,774 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 53 [2020-07-21 22:34:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:33,778 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2020-07-21 22:34:33,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:34:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2020-07-21 22:34:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-21 22:34:33,779 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:33,780 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] [2020-07-21 22:34:33,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:33,995 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:33,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:33,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1569125, now seen corresponding path program 1 times [2020-07-21 22:34:33,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:33,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813246659] [2020-07-21 22:34:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:34,120 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:34,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:34,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 22:34:34,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:34,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:34,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813246659] [2020-07-21 22:34:34,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:34,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 22:34:34,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437704620] [2020-07-21 22:34:34,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 22:34:34,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 22:34:34,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:34:34,176 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand 9 states. [2020-07-21 22:34:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:34,354 INFO L93 Difference]: Finished difference Result 227 states and 292 transitions. [2020-07-21 22:34:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 22:34:34,354 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-07-21 22:34:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:34,357 INFO L225 Difference]: With dead ends: 227 [2020-07-21 22:34:34,357 INFO L226 Difference]: Without dead ends: 206 [2020-07-21 22:34:34,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:34:34,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-21 22:34:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-07-21 22:34:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-21 22:34:34,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-21 22:34:34,373 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 54 [2020-07-21 22:34:34,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:34,373 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-21 22:34:34,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 22:34:34,374 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-21 22:34:34,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 22:34:34,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:34,375 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] [2020-07-21 22:34:34,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:34,589 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1204113239, now seen corresponding path program 1 times [2020-07-21 22:34:34,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:34,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918678781] [2020-07-21 22:34:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:34,729 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:34:34,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:34,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 22:34:34,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:34,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:34,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918678781] [2020-07-21 22:34:34,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:34,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:34:34,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55878112] [2020-07-21 22:34:34,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:34:34,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:34,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:34:34,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:34:34,756 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 5 states. [2020-07-21 22:34:34,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:34,778 INFO L93 Difference]: Finished difference Result 234 states and 302 transitions. [2020-07-21 22:34:34,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:34:34,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-07-21 22:34:34,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:34,780 INFO L225 Difference]: With dead ends: 234 [2020-07-21 22:34:34,780 INFO L226 Difference]: Without dead ends: 199 [2020-07-21 22:34:34,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:34:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-07-21 22:34:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2020-07-21 22:34:34,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-07-21 22:34:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2020-07-21 22:34:34,792 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 57 [2020-07-21 22:34:34,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:34,793 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2020-07-21 22:34:34,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:34:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2020-07-21 22:34:34,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 22:34:34,794 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:34,794 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] [2020-07-21 22:34:35,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:35,008 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:35,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1045578754, now seen corresponding path program 1 times [2020-07-21 22:34:35,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:35,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504464134] [2020-07-21 22:34:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:35,133 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:34:35,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:35,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 22:34:35,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:35,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:35,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504464134] [2020-07-21 22:34:35,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:35,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:34:35,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144336563] [2020-07-21 22:34:35,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:34:35,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:35,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:34:35,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:35,194 INFO L87 Difference]: Start difference. First operand 199 states and 259 transitions. Second operand 3 states. [2020-07-21 22:34:35,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:35,220 INFO L93 Difference]: Finished difference Result 239 states and 303 transitions. [2020-07-21 22:34:35,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:34:35,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 22:34:35,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:35,222 INFO L225 Difference]: With dead ends: 239 [2020-07-21 22:34:35,222 INFO L226 Difference]: Without dead ends: 198 [2020-07-21 22:34:35,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:34:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-07-21 22:34:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-07-21 22:34:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-21 22:34:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 254 transitions. [2020-07-21 22:34:35,234 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 254 transitions. Word has length 60 [2020-07-21 22:34:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:35,235 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 254 transitions. [2020-07-21 22:34:35,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:34:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 254 transitions. [2020-07-21 22:34:35,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 22:34:35,236 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:35,236 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] [2020-07-21 22:34:35,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:35,451 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:35,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1127735086, now seen corresponding path program 1 times [2020-07-21 22:34:35,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:35,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400006182] [2020-07-21 22:34:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:35,568 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:35,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:35,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 22:34:35,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:35,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:35,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400006182] [2020-07-21 22:34:35,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:35,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:34:35,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981469625] [2020-07-21 22:34:35,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:34:35,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:35,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:34:35,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:34:35,634 INFO L87 Difference]: Start difference. First operand 198 states and 254 transitions. Second operand 10 states. [2020-07-21 22:34:35,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:35,832 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2020-07-21 22:34:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:34:35,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-07-21 22:34:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:35,835 INFO L225 Difference]: With dead ends: 210 [2020-07-21 22:34:35,835 INFO L226 Difference]: Without dead ends: 196 [2020-07-21 22:34:35,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:34:35,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-21 22:34:35,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-07-21 22:34:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-07-21 22:34:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 250 transitions. [2020-07-21 22:34:35,854 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 250 transitions. Word has length 56 [2020-07-21 22:34:35,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:35,854 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 250 transitions. [2020-07-21 22:34:35,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:34:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 250 transitions. [2020-07-21 22:34:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-21 22:34:35,861 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:35,861 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] [2020-07-21 22:34:36,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:36,075 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:36,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:36,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1554463583, now seen corresponding path program 1 times [2020-07-21 22:34:36,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:36,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320565909] [2020-07-21 22:34:36,077 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:36,215 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:36,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:36,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:34:36,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:36,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:36,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320565909] [2020-07-21 22:34:36,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:36,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 22:34:36,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882408370] [2020-07-21 22:34:36,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:34:36,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:36,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:34:36,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:34:36,275 INFO L87 Difference]: Start difference. First operand 196 states and 250 transitions. Second operand 8 states. [2020-07-21 22:34:36,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:36,568 INFO L93 Difference]: Finished difference Result 343 states and 421 transitions. [2020-07-21 22:34:36,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:34:36,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-07-21 22:34:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:36,571 INFO L225 Difference]: With dead ends: 343 [2020-07-21 22:34:36,572 INFO L226 Difference]: Without dead ends: 271 [2020-07-21 22:34:36,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:34:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-07-21 22:34:36,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 206. [2020-07-21 22:34:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-21 22:34:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 263 transitions. [2020-07-21 22:34:36,586 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 263 transitions. Word has length 55 [2020-07-21 22:34:36,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:36,586 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 263 transitions. [2020-07-21 22:34:36,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:34:36,587 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 263 transitions. [2020-07-21 22:34:36,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-21 22:34:36,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:36,588 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] [2020-07-21 22:34:36,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:36,803 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:36,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:36,804 INFO L82 PathProgramCache]: Analyzing trace with hash -725184292, now seen corresponding path program 1 times [2020-07-21 22:34:36,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:36,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13579127] [2020-07-21 22:34:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:36,972 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:36,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:34:36,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 22:34:36,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:34:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:34:37,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:34:37,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13579127] [2020-07-21 22:34:37,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:34:37,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 22:34:37,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384606488] [2020-07-21 22:34:37,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 22:34:37,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:34:37,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 22:34:37,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:34:37,026 INFO L87 Difference]: Start difference. First operand 206 states and 263 transitions. Second operand 9 states. [2020-07-21 22:34:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:34:37,174 INFO L93 Difference]: Finished difference Result 222 states and 279 transitions. [2020-07-21 22:34:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 22:34:37,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-07-21 22:34:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:34:37,176 INFO L225 Difference]: With dead ends: 222 [2020-07-21 22:34:37,176 INFO L226 Difference]: Without dead ends: 184 [2020-07-21 22:34:37,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:34:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-07-21 22:34:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-07-21 22:34:37,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-21 22:34:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 220 transitions. [2020-07-21 22:34:37,189 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 220 transitions. Word has length 55 [2020-07-21 22:34:37,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:34:37,189 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 220 transitions. [2020-07-21 22:34:37,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 22:34:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 220 transitions. [2020-07-21 22:34:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 22:34:37,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:34:37,191 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] [2020-07-21 22:34:37,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:37,405 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:34:37,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:34:37,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2020-07-21 22:34:37,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:34:37,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072254043] [2020-07-21 22:34:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:37,529 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:34:37,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 22:34:37,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:34:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 22:34:37,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:34:37,674 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 22:34:37,678 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 22:34:37,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:34:38,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:34:38 BoogieIcfgContainer [2020-07-21 22:34:38,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:34:38,041 INFO L168 Benchmark]: Toolchain (without parser) took 11615.60 ms. Allocated memory was 143.1 MB in the beginning and 332.9 MB in the end (delta: 189.8 MB). Free memory was 99.5 MB in the beginning and 192.0 MB in the end (delta: -92.6 MB). Peak memory consumption was 97.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:34:38,043 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:34:38,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.35 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.3 MB in the beginning and 173.6 MB in the end (delta: -74.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:34:38,045 INFO L168 Benchmark]: Boogie Preprocessor took 71.55 ms. Allocated memory is still 200.8 MB. Free memory was 173.6 MB in the beginning and 170.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:34:38,045 INFO L168 Benchmark]: RCFGBuilder took 953.52 ms. Allocated memory is still 200.8 MB. Free memory was 170.2 MB in the beginning and 99.1 MB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:34:38,046 INFO L168 Benchmark]: TraceAbstraction took 9935.06 ms. Allocated memory was 200.8 MB in the beginning and 332.9 MB in the end (delta: 132.1 MB). Free memory was 98.5 MB in the beginning and 192.0 MB in the end (delta: -93.6 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2020-07-21 22:34:38,053 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.35 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 99.3 MB in the beginning and 173.6 MB in the end (delta: -74.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.55 ms. Allocated memory is still 200.8 MB. Free memory was 173.6 MB in the beginning and 170.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 953.52 ms. Allocated memory is still 200.8 MB. Free memory was 170.2 MB in the beginning and 99.1 MB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9935.06 ms. Allocated memory was 200.8 MB in the beginning and 332.9 MB in the end (delta: 132.1 MB). Free memory was 98.5 MB in the beginning and 192.0 MB in the end (delta: -93.6 MB). Peak memory consumption was 38.5 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)=16, \old(customIrp)=11, \old(DC)=19, \old(DevicePowerState)=15, \old(Executive)=9, \old(IPC)=12, \old(KernelMode)=17, \old(lowerDriverReturn)=26, \old(MPR1)=10, \old(MPR3)=22, \old(myStatus)=14, \old(NP)=8, \old(pended)=13, \old(s)=18, \old(setEventCalled)=25, \old(SKIP1)=24, \old(SKIP2)=20, \old(UNLOADED)=27, 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=0, Executive=0, IPC=0, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L104] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L107] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L110] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L234] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L235] COND TRUE s == NP [L236] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L243] Irp__CurrentLocation ++ [L244] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, 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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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=1, 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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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=1, 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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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=1, 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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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=1, 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)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lcontext=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=1, 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)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L246] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L288] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=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=0, DeviceObject__DeviceExtension=0, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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=0, Executive=0, IPC=7, irp=0, irp_choice=-1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-1, tmp_ndt_2=2, 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: 9.7s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4455 SDtfs, 1491 SDslu, 9859 SDs, 0 SdLazy, 1334 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 741 GetRequests, 677 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred 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: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 156 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 801 NumberOfCodeBlocks, 732 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 729 ConstructedInterpolants, 0 QuantifiedInterpolants, 63485 SizeOfPredicates, 20 NumberOfNonLiveVariables, 8768 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...