/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 NUM_VARIABLES --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 [2020-07-20 17:11:29,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:11:29,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:11:29,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:11:29,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:11:29,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:11:29,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:11:29,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:11:29,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:11:29,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:11:29,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:11:29,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:11:29,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:11:29,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:11:29,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:11:29,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:11:29,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:11:29,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:11:29,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:11:29,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:11:29,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:11:29,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:11:29,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:11:29,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:11:29,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 17:11:29,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 17:11:29,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 17:11:29,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 17:11:29,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 17:11:29,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 17:11:29,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 17:11:29,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 17:11:29,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 17:11:29,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 17:11:29,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 17:11:29,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 17:11:29,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 17:11:29,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 17:11:29,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:11:29,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:11:29,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:11:29,902 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 [2020-07-20 17:11:29,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:11:29,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:11:29,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:11:29,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:11:29,931 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:11:29,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:11:29,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:11:29,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:11:29,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:11:29,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:11:29,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:11:29,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:11:29,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:11:29,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:11:29,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:11:29,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:11:29,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:11:29,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:11:29,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:11:29,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:11:29,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:11:29,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:11:29,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:11:29,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:11:29,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:11:29,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:11:29,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:29,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:11:29,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:11:29,937 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 -> NUM_VARIABLES 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 [2020-07-20 17:11:30,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:11:30,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:11:30,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:11:30,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:11:30,332 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:11:30,334 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-20 17:11:30,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f8e8ab2/0aa9e17c6bbb401bbcec75b99f751cd2/FLAG71127a79a [2020-07-20 17:11:31,142 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:11:31,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-20 17:11:31,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f8e8ab2/0aa9e17c6bbb401bbcec75b99f751cd2/FLAG71127a79a [2020-07-20 17:11:31,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f8e8ab2/0aa9e17c6bbb401bbcec75b99f751cd2 [2020-07-20 17:11:31,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:11:31,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:11:31,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:11:31,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:11:31,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:11:31,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:11:31" (1/1) ... [2020-07-20 17:11:31,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732d603d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:31, skipping insertion in model container [2020-07-20 17:11:31,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:11:31" (1/1) ... [2020-07-20 17:11:31,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:11:31,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:11:31,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:11:31,871 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:11:32,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:11:32,147 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:11:32,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32 WrapperNode [2020-07-20 17:11:32,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:11:32,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:11:32,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:11:32,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:11:32,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (1/1) ... [2020-07-20 17:11:32,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:11:32,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:11:32,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:11:32,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:11:32,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (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 [2020-07-20 17:11:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:11:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:11:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-20 17:11:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-20 17:11:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-20 17:11:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:11:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-20 17:11:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-20 17:11:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-20 17:11:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-20 17:11:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-20 17:11:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-20 17:11:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-20 17:11:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-20 17:11:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-20 17:11:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-20 17:11:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-20 17:11:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-20 17:11:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:11:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 17:11:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:11:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-20 17:11:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-20 17:11:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-20 17:11:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-20 17:11:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-20 17:11:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-20 17:11:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-20 17:11:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-20 17:11:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-20 17:11:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-20 17:11:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-20 17:11:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-20 17:11:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-20 17:11:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-20 17:11:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-20 17:11:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:11:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-20 17:11:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:11:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:11:32,660 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 17:11:32,759 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-20 17:11:32,759 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-20 17:11:32,797 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 17:11:33,020 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-20 17:11:33,021 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-20 17:11:33,024 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 17:11:33,092 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-20 17:11:33,093 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-20 17:11:33,103 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 17:11:33,184 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-20 17:11:33,185 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-20 17:11:33,329 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 17:11:33,356 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-20 17:11:33,356 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-20 17:11:33,388 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 17:11:33,535 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-20 17:11:33,535 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-20 17:11:33,561 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:11:33,562 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 17:11:33,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:11:33 BoogieIcfgContainer [2020-07-20 17:11:33,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:11:33,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:11:33,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:11:33,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:11:33,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:11:31" (1/3) ... [2020-07-20 17:11:33,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c03ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:11:33, skipping insertion in model container [2020-07-20 17:11:33,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:11:32" (2/3) ... [2020-07-20 17:11:33,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c03ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:11:33, skipping insertion in model container [2020-07-20 17:11:33,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:11:33" (3/3) ... [2020-07-20 17:11:33,583 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-20 17:11:33,599 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:11:33,612 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:11:33,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:11:33,675 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:11:33,675 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:11:33,676 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:11:33,676 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:11:33,676 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:11:33,677 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:11:33,678 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:11:33,678 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:11:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-07-20 17:11:33,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-20 17:11:33,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:33,752 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] [2020-07-20 17:11:33,753 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:33,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2020-07-20 17:11:33,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:33,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821249257] [2020-07-20 17:11:33,775 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 [2020-07-20 17:11:33,977 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 17:11:33,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:33,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:11:33,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:34,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:34,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821249257] [2020-07-20 17:11:34,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:34,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:34,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566471428] [2020-07-20 17:11:34,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:34,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:34,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:34,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:34,097 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 3 states. [2020-07-20 17:11:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:34,337 INFO L93 Difference]: Finished difference Result 397 states and 597 transitions. [2020-07-20 17:11:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:34,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-07-20 17:11:34,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:34,360 INFO L225 Difference]: With dead ends: 397 [2020-07-20 17:11:34,360 INFO L226 Difference]: Without dead ends: 231 [2020-07-20 17:11:34,370 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 [2020-07-20 17:11:34,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-20 17:11:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-07-20 17:11:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-20 17:11:34,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2020-07-20 17:11:34,501 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2020-07-20 17:11:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:34,502 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2020-07-20 17:11:34,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:34,505 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2020-07-20 17:11:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 17:11:34,508 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:34,508 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] [2020-07-20 17:11:34,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:34,724 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:34,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2020-07-20 17:11:34,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:34,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300035328] [2020-07-20 17:11:34,727 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 [2020-07-20 17:11:34,853 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:34,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:34,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:11:34,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:34,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:34,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300035328] [2020-07-20 17:11:34,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:34,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:34,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946122567] [2020-07-20 17:11:34,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:34,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:34,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:34,892 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand 3 states. [2020-07-20 17:11:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:35,120 INFO L93 Difference]: Finished difference Result 375 states and 514 transitions. [2020-07-20 17:11:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:35,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-20 17:11:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:35,126 INFO L225 Difference]: With dead ends: 375 [2020-07-20 17:11:35,126 INFO L226 Difference]: Without dead ends: 314 [2020-07-20 17:11:35,129 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 [2020-07-20 17:11:35,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-07-20 17:11:35,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 298. [2020-07-20 17:11:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-20 17:11:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 408 transitions. [2020-07-20 17:11:35,169 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 408 transitions. Word has length 28 [2020-07-20 17:11:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:35,169 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 408 transitions. [2020-07-20 17:11:35,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 408 transitions. [2020-07-20 17:11:35,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 17:11:35,172 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:35,172 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] [2020-07-20 17:11:35,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:35,386 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:35,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:35,387 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2020-07-20 17:11:35,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:35,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374234061] [2020-07-20 17:11:35,389 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 [2020-07-20 17:11:35,593 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:35,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:35,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:11:35,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:35,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:35,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:35,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374234061] [2020-07-20 17:11:35,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:35,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:35,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298056349] [2020-07-20 17:11:35,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:35,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:35,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:35,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:35,618 INFO L87 Difference]: Start difference. First operand 298 states and 408 transitions. Second operand 3 states. [2020-07-20 17:11:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:35,664 INFO L93 Difference]: Finished difference Result 481 states and 640 transitions. [2020-07-20 17:11:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:35,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-20 17:11:35,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:35,668 INFO L225 Difference]: With dead ends: 481 [2020-07-20 17:11:35,669 INFO L226 Difference]: Without dead ends: 362 [2020-07-20 17:11:35,671 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 [2020-07-20 17:11:35,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-07-20 17:11:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 338. [2020-07-20 17:11:35,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-07-20 17:11:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 459 transitions. [2020-07-20 17:11:35,704 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 459 transitions. Word has length 28 [2020-07-20 17:11:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:35,705 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 459 transitions. [2020-07-20 17:11:35,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 459 transitions. [2020-07-20 17:11:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-20 17:11:35,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:35,709 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] [2020-07-20 17:11:35,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:35,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:35,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:35,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2020-07-20 17:11:35,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:35,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765925827] [2020-07-20 17:11:35,925 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 [2020-07-20 17:11:36,048 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:36,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:36,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:11:36,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:36,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:36,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765925827] [2020-07-20 17:11:36,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:36,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:36,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900511851] [2020-07-20 17:11:36,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:36,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:36,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:36,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:36,073 INFO L87 Difference]: Start difference. First operand 338 states and 459 transitions. Second operand 3 states. [2020-07-20 17:11:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:36,202 INFO L93 Difference]: Finished difference Result 341 states and 461 transitions. [2020-07-20 17:11:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:36,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-07-20 17:11:36,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:36,207 INFO L225 Difference]: With dead ends: 341 [2020-07-20 17:11:36,207 INFO L226 Difference]: Without dead ends: 337 [2020-07-20 17:11:36,208 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 [2020-07-20 17:11:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-20 17:11:36,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2020-07-20 17:11:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-20 17:11:36,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 456 transitions. [2020-07-20 17:11:36,234 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 456 transitions. Word has length 38 [2020-07-20 17:11:36,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:36,235 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 456 transitions. [2020-07-20 17:11:36,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 456 transitions. [2020-07-20 17:11:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 17:11:36,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:36,240 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] [2020-07-20 17:11:36,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:36,458 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:36,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:36,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2020-07-20 17:11:36,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:36,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908381826] [2020-07-20 17:11:36,460 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 [2020-07-20 17:11:36,632 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:11:36,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:36,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:11:36,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:36,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:36,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:36,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908381826] [2020-07-20 17:11:36,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:36,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:11:36,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13618890] [2020-07-20 17:11:36,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:11:36,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:36,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:11:36,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:36,745 INFO L87 Difference]: Start difference. First operand 337 states and 456 transitions. Second operand 5 states. [2020-07-20 17:11:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:37,153 INFO L93 Difference]: Finished difference Result 491 states and 654 transitions. [2020-07-20 17:11:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:11:37,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-07-20 17:11:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:37,158 INFO L225 Difference]: With dead ends: 491 [2020-07-20 17:11:37,158 INFO L226 Difference]: Without dead ends: 406 [2020-07-20 17:11:37,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-07-20 17:11:37,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 355. [2020-07-20 17:11:37,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-07-20 17:11:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 478 transitions. [2020-07-20 17:11:37,192 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 478 transitions. Word has length 46 [2020-07-20 17:11:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:37,193 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 478 transitions. [2020-07-20 17:11:37,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:11:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 478 transitions. [2020-07-20 17:11:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 17:11:37,198 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:37,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:11:37,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:37,410 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:37,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:37,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1876426227, now seen corresponding path program 1 times [2020-07-20 17:11:37,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:37,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403099269] [2020-07-20 17:11:37,413 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 [2020-07-20 17:11:37,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:37,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:37,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 17:11:37,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:37,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:37,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403099269] [2020-07-20 17:11:37,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:37,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:37,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74890050] [2020-07-20 17:11:37,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:37,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:37,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:37,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:37,597 INFO L87 Difference]: Start difference. First operand 355 states and 478 transitions. Second operand 3 states. [2020-07-20 17:11:37,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:37,634 INFO L93 Difference]: Finished difference Result 405 states and 534 transitions. [2020-07-20 17:11:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:37,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-20 17:11:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:37,638 INFO L225 Difference]: With dead ends: 405 [2020-07-20 17:11:37,639 INFO L226 Difference]: Without dead ends: 338 [2020-07-20 17:11:37,640 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 [2020-07-20 17:11:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-07-20 17:11:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 314. [2020-07-20 17:11:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-07-20 17:11:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 419 transitions. [2020-07-20 17:11:37,666 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 419 transitions. Word has length 46 [2020-07-20 17:11:37,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:37,667 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 419 transitions. [2020-07-20 17:11:37,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:37,667 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 419 transitions. [2020-07-20 17:11:37,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 17:11:37,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:37,670 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] [2020-07-20 17:11:37,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:37,885 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:37,886 INFO L82 PathProgramCache]: Analyzing trace with hash 750041855, now seen corresponding path program 1 times [2020-07-20 17:11:37,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:37,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857231690] [2020-07-20 17:11:37,888 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 [2020-07-20 17:11:38,014 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:38,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:38,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:11:38,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:38,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:38,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857231690] [2020-07-20 17:11:38,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:38,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:11:38,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724243123] [2020-07-20 17:11:38,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:11:38,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:38,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:11:38,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:38,076 INFO L87 Difference]: Start difference. First operand 314 states and 419 transitions. Second operand 5 states. [2020-07-20 17:11:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:38,403 INFO L93 Difference]: Finished difference Result 346 states and 455 transitions. [2020-07-20 17:11:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:11:38,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-07-20 17:11:38,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:38,408 INFO L225 Difference]: With dead ends: 346 [2020-07-20 17:11:38,409 INFO L226 Difference]: Without dead ends: 338 [2020-07-20 17:11:38,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-07-20 17:11:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 328. [2020-07-20 17:11:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-07-20 17:11:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 435 transitions. [2020-07-20 17:11:38,454 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 435 transitions. Word has length 45 [2020-07-20 17:11:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:38,457 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 435 transitions. [2020-07-20 17:11:38,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:11:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 435 transitions. [2020-07-20 17:11:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 17:11:38,463 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:38,464 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] [2020-07-20 17:11:38,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:38,679 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:38,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:38,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1397212844, now seen corresponding path program 1 times [2020-07-20 17:11:38,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:38,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856009824] [2020-07-20 17:11:38,681 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 [2020-07-20 17:11:38,786 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:38,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:38,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:11:38,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:38,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:38,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856009824] [2020-07-20 17:11:38,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:38,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:11:38,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644236307] [2020-07-20 17:11:38,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:11:38,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:38,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:11:38,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:38,854 INFO L87 Difference]: Start difference. First operand 328 states and 435 transitions. Second operand 5 states. [2020-07-20 17:11:39,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:39,183 INFO L93 Difference]: Finished difference Result 346 states and 454 transitions. [2020-07-20 17:11:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:11:39,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-07-20 17:11:39,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:39,189 INFO L225 Difference]: With dead ends: 346 [2020-07-20 17:11:39,190 INFO L226 Difference]: Without dead ends: 338 [2020-07-20 17:11:39,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:39,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-07-20 17:11:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 329. [2020-07-20 17:11:39,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-07-20 17:11:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 436 transitions. [2020-07-20 17:11:39,231 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 436 transitions. Word has length 46 [2020-07-20 17:11:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:39,232 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 436 transitions. [2020-07-20 17:11:39,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:11:39,233 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 436 transitions. [2020-07-20 17:11:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 17:11:39,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:39,236 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] [2020-07-20 17:11:39,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:39,451 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:39,452 INFO L82 PathProgramCache]: Analyzing trace with hash 152757845, now seen corresponding path program 1 times [2020-07-20 17:11:39,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:39,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053535365] [2020-07-20 17:11:39,453 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 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 [2020-07-20 17:11:39,604 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:39,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:39,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:11:39,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:39,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:39,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053535365] [2020-07-20 17:11:39,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:39,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:39,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713680020] [2020-07-20 17:11:39,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:39,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:39,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:39,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:39,628 INFO L87 Difference]: Start difference. First operand 329 states and 436 transitions. Second operand 3 states. [2020-07-20 17:11:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:39,679 INFO L93 Difference]: Finished difference Result 346 states and 457 transitions. [2020-07-20 17:11:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:39,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 17:11:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:39,684 INFO L225 Difference]: With dead ends: 346 [2020-07-20 17:11:39,685 INFO L226 Difference]: Without dead ends: 323 [2020-07-20 17:11:39,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-07-20 17:11:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 293. [2020-07-20 17:11:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-20 17:11:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 390 transitions. [2020-07-20 17:11:39,719 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 390 transitions. Word has length 47 [2020-07-20 17:11:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:39,720 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 390 transitions. [2020-07-20 17:11:39,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 390 transitions. [2020-07-20 17:11:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-20 17:11:39,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:39,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:11:39,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:39,942 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:39,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:39,943 INFO L82 PathProgramCache]: Analyzing trace with hash 448848119, now seen corresponding path program 1 times [2020-07-20 17:11:39,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:39,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875042422] [2020-07-20 17:11:39,945 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 [2020-07-20 17:11:40,134 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:11:40,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:40,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:11:40,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:40,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:40,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875042422] [2020-07-20 17:11:40,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:40,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:40,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027951126] [2020-07-20 17:11:40,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:40,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:40,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:40,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:40,163 INFO L87 Difference]: Start difference. First operand 293 states and 390 transitions. Second operand 3 states. [2020-07-20 17:11:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:40,259 INFO L93 Difference]: Finished difference Result 300 states and 396 transitions. [2020-07-20 17:11:40,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:40,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-07-20 17:11:40,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:40,270 INFO L225 Difference]: With dead ends: 300 [2020-07-20 17:11:40,270 INFO L226 Difference]: Without dead ends: 258 [2020-07-20 17:11:40,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:40,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-07-20 17:11:40,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2020-07-20 17:11:40,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-20 17:11:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2020-07-20 17:11:40,299 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 48 [2020-07-20 17:11:40,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:40,299 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2020-07-20 17:11:40,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2020-07-20 17:11:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 17:11:40,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:40,304 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] [2020-07-20 17:11:40,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:40,519 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:40,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2020-07-20 17:11:40,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:40,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508253239] [2020-07-20 17:11:40,521 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 [2020-07-20 17:11:40,636 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:40,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:40,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:11:40,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:40,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:40,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508253239] [2020-07-20 17:11:40,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:40,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:11:40,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490770937] [2020-07-20 17:11:40,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:11:40,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:40,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:11:40,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:11:40,672 INFO L87 Difference]: Start difference. First operand 258 states and 339 transitions. Second operand 3 states. [2020-07-20 17:11:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:40,763 INFO L93 Difference]: Finished difference Result 286 states and 372 transitions. [2020-07-20 17:11:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:11:40,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 17:11:40,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:40,768 INFO L225 Difference]: With dead ends: 286 [2020-07-20 17:11:40,769 INFO L226 Difference]: Without dead ends: 256 [2020-07-20 17:11:40,770 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 [2020-07-20 17:11:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-07-20 17:11:40,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-07-20 17:11:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-07-20 17:11:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 335 transitions. [2020-07-20 17:11:40,791 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 335 transitions. Word has length 53 [2020-07-20 17:11:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:40,791 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 335 transitions. [2020-07-20 17:11:40,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:11:40,792 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 335 transitions. [2020-07-20 17:11:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 17:11:40,794 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:40,794 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] [2020-07-20 17:11:41,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:41,009 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:41,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2020-07-20 17:11:41,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:41,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806990623] [2020-07-20 17:11:41,011 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 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 [2020-07-20 17:11:41,121 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 17:11:41,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:41,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:11:41,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:41,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:41,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:41,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806990623] [2020-07-20 17:11:41,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:41,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 17:11:41,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849237824] [2020-07-20 17:11:41,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:11:41,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:41,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:11:41,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:11:41,194 INFO L87 Difference]: Start difference. First operand 256 states and 335 transitions. Second operand 6 states. [2020-07-20 17:11:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:41,638 INFO L93 Difference]: Finished difference Result 297 states and 381 transitions. [2020-07-20 17:11:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:11:41,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-07-20 17:11:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:41,644 INFO L225 Difference]: With dead ends: 297 [2020-07-20 17:11:41,645 INFO L226 Difference]: Without dead ends: 256 [2020-07-20 17:11:41,646 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 [2020-07-20 17:11:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-07-20 17:11:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-07-20 17:11:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-07-20 17:11:41,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 333 transitions. [2020-07-20 17:11:41,678 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 333 transitions. Word has length 51 [2020-07-20 17:11:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:41,678 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 333 transitions. [2020-07-20 17:11:41,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:11:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 333 transitions. [2020-07-20 17:11:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 17:11:41,680 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:41,681 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] [2020-07-20 17:11:41,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:41,895 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:41,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:41,896 INFO L82 PathProgramCache]: Analyzing trace with hash 240184037, now seen corresponding path program 1 times [2020-07-20 17:11:41,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:41,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101203358] [2020-07-20 17:11:41,897 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 [2020-07-20 17:11:42,071 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:11:42,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:42,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:11:42,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:42,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:42,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101203358] [2020-07-20 17:11:42,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:42,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 17:11:42,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430209655] [2020-07-20 17:11:42,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:11:42,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:42,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:11:42,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:11:42,162 INFO L87 Difference]: Start difference. First operand 256 states and 333 transitions. Second operand 8 states. [2020-07-20 17:11:42,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:42,339 INFO L93 Difference]: Finished difference Result 268 states and 345 transitions. [2020-07-20 17:11:42,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:11:42,340 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-07-20 17:11:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:42,343 INFO L225 Difference]: With dead ends: 268 [2020-07-20 17:11:42,343 INFO L226 Difference]: Without dead ends: 227 [2020-07-20 17:11:42,344 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 [2020-07-20 17:11:42,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-07-20 17:11:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2020-07-20 17:11:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-07-20 17:11:42,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 294 transitions. [2020-07-20 17:11:42,364 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 294 transitions. Word has length 53 [2020-07-20 17:11:42,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:42,364 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 294 transitions. [2020-07-20 17:11:42,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:11:42,365 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 294 transitions. [2020-07-20 17:11:42,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-20 17:11:42,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:42,368 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] [2020-07-20 17:11:42,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:42,582 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:42,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1569125, now seen corresponding path program 1 times [2020-07-20 17:11:42,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:42,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358787310] [2020-07-20 17:11:42,583 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 [2020-07-20 17:11:42,691 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:42,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:42,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:11:42,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:42,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:42,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358787310] [2020-07-20 17:11:42,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:42,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 17:11:42,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989837671] [2020-07-20 17:11:42,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 17:11:42,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:42,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 17:11:42,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:11:42,770 INFO L87 Difference]: Start difference. First operand 227 states and 294 transitions. Second operand 9 states. [2020-07-20 17:11:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:42,997 INFO L93 Difference]: Finished difference Result 243 states and 310 transitions. [2020-07-20 17:11:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 17:11:42,998 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-07-20 17:11:42,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:43,000 INFO L225 Difference]: With dead ends: 243 [2020-07-20 17:11:43,001 INFO L226 Difference]: Without dead ends: 222 [2020-07-20 17:11:43,002 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 [2020-07-20 17:11:43,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-07-20 17:11:43,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2020-07-20 17:11:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-07-20 17:11:43,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2020-07-20 17:11:43,024 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 54 [2020-07-20 17:11:43,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:43,025 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2020-07-20 17:11:43,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 17:11:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2020-07-20 17:11:43,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 17:11:43,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:43,028 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] [2020-07-20 17:11:43,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:43,244 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:43,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:43,244 INFO L82 PathProgramCache]: Analyzing trace with hash -527681510, now seen corresponding path program 1 times [2020-07-20 17:11:43,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:43,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965520591] [2020-07-20 17:11:43,246 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 [2020-07-20 17:11:43,433 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:43,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:43,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 17:11:43,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:43,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:43,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965520591] [2020-07-20 17:11:43,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:43,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 17:11:43,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876555096] [2020-07-20 17:11:43,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:11:43,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:43,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:11:43,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:11:43,475 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand 6 states. [2020-07-20 17:11:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:43,585 INFO L93 Difference]: Finished difference Result 259 states and 332 transitions. [2020-07-20 17:11:43,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:11:43,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 17:11:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:43,588 INFO L225 Difference]: With dead ends: 259 [2020-07-20 17:11:43,588 INFO L226 Difference]: Without dead ends: 252 [2020-07-20 17:11:43,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:11:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-07-20 17:11:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 232. [2020-07-20 17:11:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-07-20 17:11:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 300 transitions. [2020-07-20 17:11:43,608 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 300 transitions. Word has length 57 [2020-07-20 17:11:43,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:43,609 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 300 transitions. [2020-07-20 17:11:43,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:11:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 300 transitions. [2020-07-20 17:11:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 17:11:43,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:43,611 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] [2020-07-20 17:11:43,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:43,826 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1127735086, now seen corresponding path program 1 times [2020-07-20 17:11:43,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:43,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795524819] [2020-07-20 17:11:43,827 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 [2020-07-20 17:11:43,990 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:11:43,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:43,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-20 17:11:43,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:44,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:44,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795524819] [2020-07-20 17:11:44,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:44,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-20 17:11:44,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989213144] [2020-07-20 17:11:44,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 17:11:44,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:44,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 17:11:44,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-20 17:11:44,088 INFO L87 Difference]: Start difference. First operand 232 states and 300 transitions. Second operand 10 states. [2020-07-20 17:11:44,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:44,298 INFO L93 Difference]: Finished difference Result 244 states and 312 transitions. [2020-07-20 17:11:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:11:44,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-07-20 17:11:44,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:44,301 INFO L225 Difference]: With dead ends: 244 [2020-07-20 17:11:44,301 INFO L226 Difference]: Without dead ends: 230 [2020-07-20 17:11:44,302 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 [2020-07-20 17:11:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-07-20 17:11:44,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-07-20 17:11:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-20 17:11:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 296 transitions. [2020-07-20 17:11:44,324 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 296 transitions. Word has length 56 [2020-07-20 17:11:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:44,324 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 296 transitions. [2020-07-20 17:11:44,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 17:11:44,325 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 296 transitions. [2020-07-20 17:11:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-20 17:11:44,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:44,326 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] [2020-07-20 17:11:44,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:44,540 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:44,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1554463583, now seen corresponding path program 1 times [2020-07-20 17:11:44,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:44,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368200255] [2020-07-20 17:11:44,543 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 [2020-07-20 17:11:44,684 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:44,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:44,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 17:11:44,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:44,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:44,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:44,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368200255] [2020-07-20 17:11:44,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:44,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 17:11:44,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671146789] [2020-07-20 17:11:44,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:11:44,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:44,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:11:44,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:11:44,760 INFO L87 Difference]: Start difference. First operand 230 states and 296 transitions. Second operand 8 states. [2020-07-20 17:11:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:45,117 INFO L93 Difference]: Finished difference Result 377 states and 463 transitions. [2020-07-20 17:11:45,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:11:45,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-07-20 17:11:45,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:45,120 INFO L225 Difference]: With dead ends: 377 [2020-07-20 17:11:45,121 INFO L226 Difference]: Without dead ends: 305 [2020-07-20 17:11:45,122 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 [2020-07-20 17:11:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-07-20 17:11:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 257. [2020-07-20 17:11:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-07-20 17:11:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 328 transitions. [2020-07-20 17:11:45,143 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 328 transitions. Word has length 55 [2020-07-20 17:11:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:45,144 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 328 transitions. [2020-07-20 17:11:45,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:11:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 328 transitions. [2020-07-20 17:11:45,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-20 17:11:45,146 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:45,146 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] [2020-07-20 17:11:45,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:45,361 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:45,362 INFO L82 PathProgramCache]: Analyzing trace with hash -725184292, now seen corresponding path program 1 times [2020-07-20 17:11:45,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:45,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525346293] [2020-07-20 17:11:45,362 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:45,455 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:11:45,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:45,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 17:11:45,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:45,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:45,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525346293] [2020-07-20 17:11:45,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:45,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 17:11:45,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637908246] [2020-07-20 17:11:45,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 17:11:45,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:45,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 17:11:45,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:11:45,532 INFO L87 Difference]: Start difference. First operand 257 states and 328 transitions. Second operand 9 states. [2020-07-20 17:11:45,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:45,721 INFO L93 Difference]: Finished difference Result 273 states and 344 transitions. [2020-07-20 17:11:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 17:11:45,722 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-07-20 17:11:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:45,725 INFO L225 Difference]: With dead ends: 273 [2020-07-20 17:11:45,725 INFO L226 Difference]: Without dead ends: 235 [2020-07-20 17:11:45,726 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 [2020-07-20 17:11:45,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-07-20 17:11:45,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2020-07-20 17:11:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-07-20 17:11:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 285 transitions. [2020-07-20 17:11:45,743 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 285 transitions. Word has length 55 [2020-07-20 17:11:45,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:45,744 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 285 transitions. [2020-07-20 17:11:45,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 17:11:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 285 transitions. [2020-07-20 17:11:45,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 17:11:45,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:45,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:11:45,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:45,962 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:45,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:45,963 INFO L82 PathProgramCache]: Analyzing trace with hash -639520605, now seen corresponding path program 1 times [2020-07-20 17:11:45,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:45,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928908097] [2020-07-20 17:11:45,963 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:46,143 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:46,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:11:46,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 17:11:46,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:11:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:11:46,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:11:46,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928908097] [2020-07-20 17:11:46,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:11:46,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:11:46,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553809619] [2020-07-20 17:11:46,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:11:46,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:11:46,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:11:46,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:46,181 INFO L87 Difference]: Start difference. First operand 235 states and 285 transitions. Second operand 5 states. [2020-07-20 17:11:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:11:46,219 INFO L93 Difference]: Finished difference Result 285 states and 342 transitions. [2020-07-20 17:11:46,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:11:46,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-20 17:11:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:11:46,222 INFO L225 Difference]: With dead ends: 285 [2020-07-20 17:11:46,222 INFO L226 Difference]: Without dead ends: 226 [2020-07-20 17:11:46,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:11:46,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-20 17:11:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-07-20 17:11:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-20 17:11:46,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 273 transitions. [2020-07-20 17:11:46,239 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 273 transitions. Word has length 58 [2020-07-20 17:11:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:11:46,240 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 273 transitions. [2020-07-20 17:11:46,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:11:46,240 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 273 transitions. [2020-07-20 17:11:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 17:11:46,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:11:46,242 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] [2020-07-20 17:11:46,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:46,457 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:11:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:11:46,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2020-07-20 17:11:46,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:11:46,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360177690] [2020-07-20 17:11:46,458 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:46,585 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:11:46,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 17:11:46,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:11:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 17:11:46,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:11:46,727 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 17:11:46,727 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 17:11:46,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:11:47,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:11:47 BoogieIcfgContainer [2020-07-20 17:11:47,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:11:47,107 INFO L168 Benchmark]: Toolchain (without parser) took 15686.63 ms. Allocated memory was 138.9 MB in the beginning and 364.9 MB in the end (delta: 226.0 MB). Free memory was 100.3 MB in the beginning and 174.9 MB in the end (delta: -74.6 MB). Peak memory consumption was 151.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:11:47,111 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 17:11:47,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.82 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 176.4 MB in the end (delta: -76.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:11:47,112 INFO L168 Benchmark]: Boogie Preprocessor took 88.06 ms. Allocated memory is still 203.4 MB. Free memory was 176.4 MB in the beginning and 173.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:11:47,113 INFO L168 Benchmark]: RCFGBuilder took 1333.16 ms. Allocated memory is still 203.4 MB. Free memory was 173.5 MB in the beginning and 102.6 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:11:47,113 INFO L168 Benchmark]: TraceAbstraction took 13528.18 ms. Allocated memory was 203.4 MB in the beginning and 364.9 MB in the end (delta: 161.5 MB). Free memory was 101.9 MB in the beginning and 174.9 MB in the end (delta: -73.0 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:11:47,119 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.82 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 176.4 MB in the end (delta: -76.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.06 ms. Allocated memory is still 203.4 MB. Free memory was 176.4 MB in the beginning and 173.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1333.16 ms. Allocated memory is still 203.4 MB. Free memory was 173.5 MB in the beginning and 102.6 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13528.18 ms. Allocated memory was 203.4 MB in the beginning and 364.9 MB in the end (delta: 161.5 MB). Free memory was 101.9 MB in the beginning and 174.9 MB in the end (delta: -73.0 MB). Peak memory consumption was 88.5 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)=17, \old(customIrp)=11, \old(DC)=19, \old(DevicePowerState)=14, \old(Executive)=9, \old(IPC)=12, \old(KernelMode)=16, \old(lowerDriverReturn)=26, \old(MPR1)=10, \old(MPR3)=22, \old(myStatus)=15, \old(NP)=8, \old(pended)=13, \old(s)=20, \old(setEventCalled)=25, \old(SKIP1)=24, \old(SKIP2)=18, \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=0, 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=0, 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=0, 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=0, 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=0, 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=0, 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=0, 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=0, 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=0, 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=0, 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: 13.2s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5303 SDtfs, 2563 SDslu, 11427 SDs, 0 SdLazy, 1897 SolverSat, 195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 879 GetRequests, 801 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=355occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 19 MinimizatonAttempts, 232 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 940 NumberOfCodeBlocks, 687 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 865 ConstructedInterpolants, 0 QuantifiedInterpolants, 100217 SizeOfPredicates, 30 NumberOfNonLiveVariables, 8361 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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...