/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_FUNCTIONS --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_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:48:44,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:48:44,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:48:44,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:48:44,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:48:44,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:48:44,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:48:44,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:48:44,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:48:44,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:48:44,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:48:44,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:48:44,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:48:44,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:48:44,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:48:44,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:48:44,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:48:44,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:48:44,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:48:44,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:48:44,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:48:44,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:48:44,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:48:44,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:48:44,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:48:44,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:48:44,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:48:44,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:48:44,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:48:44,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:48:44,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:48:44,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:48:44,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:48:44,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:48:44,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:48:44,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:48:44,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:48:44,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:48:44,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:48:44,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:48:44,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:48:44,336 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 13:48:44,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:48:44,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:48:44,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:48:44,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:48:44,372 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:48:44,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:48:44,373 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:48:44,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:48:44,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:48:44,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:48:44,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:48:44,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:48:44,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:48:44,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:48:44,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:48:44,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:48:44,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:48:44,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:48:44,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:48:44,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:48:44,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:48:44,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:48:44,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:48:44,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:48:44,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:48:44,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:48:44,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:44,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:48:44,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:48:44,378 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_FUNCTIONS 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 13:48:44,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:48:44,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:48:44,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:48:44,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:48:44,769 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:48:44,770 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-20 13:48:44,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2c42bf8e/d9c86cb913804adcaaebb173f507724a/FLAGaa464d437 [2020-07-20 13:48:45,463 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:48:45,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-20 13:48:45,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2c42bf8e/d9c86cb913804adcaaebb173f507724a/FLAGaa464d437 [2020-07-20 13:48:45,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2c42bf8e/d9c86cb913804adcaaebb173f507724a [2020-07-20 13:48:45,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:48:45,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:48:45,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:48:45,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:48:45,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:48:45,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:48:45" (1/1) ... [2020-07-20 13:48:45,807 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 01:48:45, skipping insertion in model container [2020-07-20 13:48:45,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:48:45" (1/1) ... [2020-07-20 13:48:45,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:48:45,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:48:46,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:48:46,165 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:48:46,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:48:46,374 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:48:46,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46 WrapperNode [2020-07-20 13:48:46,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:48:46,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:48:46,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:48:46,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:48:46,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (1/1) ... [2020-07-20 13:48:46,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:48:46,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:48:46,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:48:46,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:48:46,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (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 13:48:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:48:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:48:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-20 13:48:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-20 13:48:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-20 13:48:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:48:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-20 13:48:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-20 13:48:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-20 13:48:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-20 13:48:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-20 13:48:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-20 13:48:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-20 13:48:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:48:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 13:48:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:48:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-20 13:48:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-20 13:48:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-20 13:48:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-20 13:48:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-20 13:48:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-20 13:48:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-20 13:48:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-20 13:48:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-20 13:48:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-20 13:48:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:48:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-20 13:48:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:48:46,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:48:46,845 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 13:48:46,974 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-07-20 13:48:46,974 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-07-20 13:48:46,976 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 13:48:47,023 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-07-20 13:48:47,024 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-07-20 13:48:47,038 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 13:48:47,072 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-20 13:48:47,073 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-20 13:48:47,094 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 13:48:47,252 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-20 13:48:47,253 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-20 13:48:47,286 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:48:47,287 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 13:48:47,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:48:47 BoogieIcfgContainer [2020-07-20 13:48:47,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:48:47,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:48:47,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:48:47,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:48:47,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:48:45" (1/3) ... [2020-07-20 13:48:47,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b9379f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:48:47, skipping insertion in model container [2020-07-20 13:48:47,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:48:46" (2/3) ... [2020-07-20 13:48:47,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b9379f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:48:47, skipping insertion in model container [2020-07-20 13:48:47,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:48:47" (3/3) ... [2020-07-20 13:48:47,311 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-07-20 13:48:47,325 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:48:47,345 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:48:47,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:48:47,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:48:47,413 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:48:47,414 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:48:47,414 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:48:47,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:48:47,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:48:47,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:48:47,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:48:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-20 13:48:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-20 13:48:47,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:47,455 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 13:48:47,455 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:47,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1530382191, now seen corresponding path program 1 times [2020-07-20 13:48:47,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:47,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572147669] [2020-07-20 13:48:47,476 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 13:48:47,614 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 13:48:47,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:47,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:48:47,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:47,682 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 13:48:47,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:47,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572147669] [2020-07-20 13:48:47,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:47,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:47,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340644240] [2020-07-20 13:48:47,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:47,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:47,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:47,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:47,715 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-20 13:48:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:47,814 INFO L93 Difference]: Finished difference Result 286 states and 438 transitions. [2020-07-20 13:48:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:47,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-07-20 13:48:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:47,833 INFO L225 Difference]: With dead ends: 286 [2020-07-20 13:48:47,834 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 13:48:47,841 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 13:48:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 13:48:47,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-20 13:48:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-20 13:48:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2020-07-20 13:48:47,913 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 20 [2020-07-20 13:48:47,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:47,914 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2020-07-20 13:48:47,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2020-07-20 13:48:47,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 13:48:47,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:47,916 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] [2020-07-20 13:48:48,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:48,131 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:48,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:48,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1141575010, now seen corresponding path program 1 times [2020-07-20 13:48:48,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:48,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687096010] [2020-07-20 13:48:48,132 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 13:48:48,276 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:48,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:48,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:48:48,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:48,303 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 13:48:48,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:48,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687096010] [2020-07-20 13:48:48,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:48,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:48,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632264255] [2020-07-20 13:48:48,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:48,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:48,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:48,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:48,313 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 3 states. [2020-07-20 13:48:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:48,479 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions. [2020-07-20 13:48:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:48,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-20 13:48:48,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:48,484 INFO L225 Difference]: With dead ends: 258 [2020-07-20 13:48:48,485 INFO L226 Difference]: Without dead ends: 202 [2020-07-20 13:48:48,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 13:48:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-20 13:48:48,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2020-07-20 13:48:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-07-20 13:48:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 252 transitions. [2020-07-20 13:48:48,517 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 252 transitions. Word has length 26 [2020-07-20 13:48:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:48,518 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 252 transitions. [2020-07-20 13:48:48,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 252 transitions. [2020-07-20 13:48:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-20 13:48:48,519 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:48,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:48,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:48,735 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:48,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1029098174, now seen corresponding path program 1 times [2020-07-20 13:48:48,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:48,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378976040] [2020-07-20 13:48:48,737 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 13:48:48,853 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:48,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:48,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:48:48,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:48,877 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 13:48:48,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:48,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378976040] [2020-07-20 13:48:48,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:48,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:48,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031614130] [2020-07-20 13:48:48,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:48,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:48,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:48,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:48,884 INFO L87 Difference]: Start difference. First operand 189 states and 252 transitions. Second operand 3 states. [2020-07-20 13:48:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:48,935 INFO L93 Difference]: Finished difference Result 310 states and 406 transitions. [2020-07-20 13:48:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:48,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-20 13:48:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:48,939 INFO L225 Difference]: With dead ends: 310 [2020-07-20 13:48:48,940 INFO L226 Difference]: Without dead ends: 248 [2020-07-20 13:48:48,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 13:48:48,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-20 13:48:48,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2020-07-20 13:48:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 13:48:48,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2020-07-20 13:48:48,968 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 27 [2020-07-20 13:48:48,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:48,969 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2020-07-20 13:48:48,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2020-07-20 13:48:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 13:48:48,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:48,972 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] [2020-07-20 13:48:49,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:49,188 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:49,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:49,189 INFO L82 PathProgramCache]: Analyzing trace with hash 742933031, now seen corresponding path program 1 times [2020-07-20 13:48:49,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:49,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90680034] [2020-07-20 13:48:49,190 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 13:48:49,315 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:49,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:49,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:48:49,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:49,337 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 13:48:49,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:49,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90680034] [2020-07-20 13:48:49,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:49,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:49,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771548587] [2020-07-20 13:48:49,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:49,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:49,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:49,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:49,342 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand 3 states. [2020-07-20 13:48:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:49,443 INFO L93 Difference]: Finished difference Result 214 states and 284 transitions. [2020-07-20 13:48:49,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:49,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-20 13:48:49,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:49,448 INFO L225 Difference]: With dead ends: 214 [2020-07-20 13:48:49,448 INFO L226 Difference]: Without dead ends: 211 [2020-07-20 13:48:49,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 13:48:49,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-20 13:48:49,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-20 13:48:49,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 13:48:49,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2020-07-20 13:48:49,500 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 37 [2020-07-20 13:48:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:49,501 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2020-07-20 13:48:49,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2020-07-20 13:48:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 13:48:49,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:49,514 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 13:48:49,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:49,730 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:49,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:49,730 INFO L82 PathProgramCache]: Analyzing trace with hash 324263340, now seen corresponding path program 1 times [2020-07-20 13:48:49,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:49,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663722874] [2020-07-20 13:48:49,732 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 13:48:49,910 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:48:49,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:49,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:48:49,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:49,959 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 13:48:49,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:49,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663722874] [2020-07-20 13:48:49,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:49,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:49,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263389894] [2020-07-20 13:48:49,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:49,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:49,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:49,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:49,965 INFO L87 Difference]: Start difference. First operand 211 states and 281 transitions. Second operand 3 states. [2020-07-20 13:48:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:50,017 INFO L93 Difference]: Finished difference Result 268 states and 349 transitions. [2020-07-20 13:48:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:50,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-20 13:48:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:50,021 INFO L225 Difference]: With dead ends: 268 [2020-07-20 13:48:50,021 INFO L226 Difference]: Without dead ends: 202 [2020-07-20 13:48:50,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 13:48:50,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-20 13:48:50,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 184. [2020-07-20 13:48:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-20 13:48:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 243 transitions. [2020-07-20 13:48:50,055 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 243 transitions. Word has length 45 [2020-07-20 13:48:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:50,056 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 243 transitions. [2020-07-20 13:48:50,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 243 transitions. [2020-07-20 13:48:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:48:50,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:50,063 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 13:48:50,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:50,278 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:50,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash 726030577, now seen corresponding path program 1 times [2020-07-20 13:48:50,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:50,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717640031] [2020-07-20 13:48:50,280 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 13:48:50,388 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:50,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:50,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:48:50,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:50,409 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 13:48:50,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:50,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717640031] [2020-07-20 13:48:50,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:50,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:50,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313000956] [2020-07-20 13:48:50,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:50,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:50,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:50,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:50,412 INFO L87 Difference]: Start difference. First operand 184 states and 243 transitions. Second operand 3 states. [2020-07-20 13:48:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:50,478 INFO L93 Difference]: Finished difference Result 243 states and 318 transitions. [2020-07-20 13:48:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:50,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 13:48:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:50,481 INFO L225 Difference]: With dead ends: 243 [2020-07-20 13:48:50,481 INFO L226 Difference]: Without dead ends: 182 [2020-07-20 13:48:50,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 13:48:50,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-20 13:48:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-07-20 13:48:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-07-20 13:48:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 239 transitions. [2020-07-20 13:48:50,496 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 239 transitions. Word has length 51 [2020-07-20 13:48:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:50,496 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 239 transitions. [2020-07-20 13:48:50,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 239 transitions. [2020-07-20 13:48:50,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-20 13:48:50,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:50,499 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] [2020-07-20 13:48:50,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:50,713 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:50,714 INFO L82 PathProgramCache]: Analyzing trace with hash 572107035, now seen corresponding path program 1 times [2020-07-20 13:48:50,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:50,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979072289] [2020-07-20 13:48:50,716 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 13:48:50,815 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:50,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:50,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 13:48:50,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:50,899 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 13:48:50,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:50,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979072289] [2020-07-20 13:48:50,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:50,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:48:50,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655271490] [2020-07-20 13:48:50,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:48:50,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:50,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:48:50,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:48:50,904 INFO L87 Difference]: Start difference. First operand 182 states and 239 transitions. Second operand 6 states. [2020-07-20 13:48:51,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:51,270 INFO L93 Difference]: Finished difference Result 217 states and 283 transitions. [2020-07-20 13:48:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:48:51,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-07-20 13:48:51,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:51,272 INFO L225 Difference]: With dead ends: 217 [2020-07-20 13:48:51,272 INFO L226 Difference]: Without dead ends: 193 [2020-07-20 13:48:51,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 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 13:48:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-07-20 13:48:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 188. [2020-07-20 13:48:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-20 13:48:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 245 transitions. [2020-07-20 13:48:51,300 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 245 transitions. Word has length 50 [2020-07-20 13:48:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:51,300 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 245 transitions. [2020-07-20 13:48:51,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:48:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 245 transitions. [2020-07-20 13:48:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:48:51,302 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:51,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:51,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:51,508 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:51,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:51,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1461171158, now seen corresponding path program 1 times [2020-07-20 13:48:51,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:51,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572040444] [2020-07-20 13:48:51,510 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 13:48:51,637 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:48:51,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:51,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:48:51,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:51,661 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 13:48:51,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:51,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572040444] [2020-07-20 13:48:51,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:51,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:51,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313573783] [2020-07-20 13:48:51,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:51,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:51,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:51,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:51,664 INFO L87 Difference]: Start difference. First operand 188 states and 245 transitions. Second operand 3 states. [2020-07-20 13:48:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:51,696 INFO L93 Difference]: Finished difference Result 197 states and 256 transitions. [2020-07-20 13:48:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:51,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:48:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:51,699 INFO L225 Difference]: With dead ends: 197 [2020-07-20 13:48:51,699 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 13:48:51,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 13:48:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 13:48:51,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-20 13:48:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 13:48:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2020-07-20 13:48:51,708 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 52 [2020-07-20 13:48:51,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:51,709 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2020-07-20 13:48:51,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:51,709 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2020-07-20 13:48:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 13:48:51,710 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:51,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:51,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:51,923 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:51,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:51,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1516710605, now seen corresponding path program 1 times [2020-07-20 13:48:51,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:51,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195155927] [2020-07-20 13:48:51,925 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 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 13:48:52,021 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:52,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:52,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 13:48:52,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:48:52,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:52,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195155927] [2020-07-20 13:48:52,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:52,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 13:48:52,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638890408] [2020-07-20 13:48:52,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 13:48:52,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:52,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 13:48:52,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 13:48:52,082 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand 4 states. [2020-07-20 13:48:52,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:52,161 INFO L93 Difference]: Finished difference Result 119 states and 135 transitions. [2020-07-20 13:48:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 13:48:52,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-07-20 13:48:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:52,163 INFO L225 Difference]: With dead ends: 119 [2020-07-20 13:48:52,163 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 13:48:52,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 13:48:52,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 13:48:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-20 13:48:52,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 13:48:52,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2020-07-20 13:48:52,172 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 59 [2020-07-20 13:48:52,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:52,173 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2020-07-20 13:48:52,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 13:48:52,173 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2020-07-20 13:48:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 13:48:52,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:52,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:52,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:52,390 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:52,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:52,391 INFO L82 PathProgramCache]: Analyzing trace with hash -14076392, now seen corresponding path program 1 times [2020-07-20 13:48:52,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:52,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588198934] [2020-07-20 13:48:52,392 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 13:48:52,574 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:52,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:52,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:48:52,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:52,622 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 13:48:52,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:52,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588198934] [2020-07-20 13:48:52,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:52,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:52,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838146167] [2020-07-20 13:48:52,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:52,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:52,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:52,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:52,625 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand 3 states. [2020-07-20 13:48:52,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:52,660 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2020-07-20 13:48:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:52,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 13:48:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:52,663 INFO L225 Difference]: With dead ends: 105 [2020-07-20 13:48:52,663 INFO L226 Difference]: Without dead ends: 86 [2020-07-20 13:48:52,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 13:48:52,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-20 13:48:52,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2020-07-20 13:48:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-20 13:48:52,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2020-07-20 13:48:52,678 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 61 [2020-07-20 13:48:52,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:52,680 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2020-07-20 13:48:52,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2020-07-20 13:48:52,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 13:48:52,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:52,681 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:52,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:52,896 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:52,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1135324297, now seen corresponding path program 1 times [2020-07-20 13:48:52,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:52,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398106215] [2020-07-20 13:48:52,898 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 13:48:53,036 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:48:53,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:53,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:48:53,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:53,069 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 13:48:53,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:53,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398106215] [2020-07-20 13:48:53,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:53,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:53,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563273552] [2020-07-20 13:48:53,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:53,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:53,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:53,073 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 3 states. [2020-07-20 13:48:53,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:53,094 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2020-07-20 13:48:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:53,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 13:48:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:53,097 INFO L225 Difference]: With dead ends: 108 [2020-07-20 13:48:53,097 INFO L226 Difference]: Without dead ends: 87 [2020-07-20 13:48:53,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 13:48:53,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-20 13:48:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2020-07-20 13:48:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-20 13:48:53,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-07-20 13:48:53,108 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 61 [2020-07-20 13:48:53,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:53,110 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-07-20 13:48:53,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:53,110 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-07-20 13:48:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 13:48:53,111 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:53,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:53,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:53,325 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:53,326 INFO L82 PathProgramCache]: Analyzing trace with hash -600882406, now seen corresponding path program 1 times [2020-07-20 13:48:53,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:53,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301051273] [2020-07-20 13:48:53,327 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 13:48:53,450 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:48:53,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:53,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 13:48:53,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:53,505 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 13:48:53,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:53,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301051273] [2020-07-20 13:48:53,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:53,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:48:53,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440633453] [2020-07-20 13:48:53,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:48:53,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:53,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:48:53,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:48:53,509 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 5 states. [2020-07-20 13:48:53,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:53,584 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2020-07-20 13:48:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 13:48:53,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-07-20 13:48:53,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:53,586 INFO L225 Difference]: With dead ends: 92 [2020-07-20 13:48:53,586 INFO L226 Difference]: Without dead ends: 71 [2020-07-20 13:48:53,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 13:48:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-20 13:48:53,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-07-20 13:48:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-20 13:48:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2020-07-20 13:48:53,595 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 61 [2020-07-20 13:48:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:53,595 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2020-07-20 13:48:53,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:48:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2020-07-20 13:48:53,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 13:48:53,597 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:53,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:53,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:53,813 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:53,814 INFO L82 PathProgramCache]: Analyzing trace with hash 475938380, now seen corresponding path program 1 times [2020-07-20 13:48:53,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:53,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767173062] [2020-07-20 13:48:53,816 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 13:48:53,963 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:48:53,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:53,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:48:53,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:54,025 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 13:48:54,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:54,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767173062] [2020-07-20 13:48:54,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:54,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:48:54,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812043022] [2020-07-20 13:48:54,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:48:54,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:54,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:48:54,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:48:54,029 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 6 states. [2020-07-20 13:48:54,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:54,063 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2020-07-20 13:48:54,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:48:54,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 13:48:54,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:54,064 INFO L225 Difference]: With dead ends: 78 [2020-07-20 13:48:54,064 INFO L226 Difference]: Without dead ends: 71 [2020-07-20 13:48:54,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:48:54,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-20 13:48:54,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-07-20 13:48:54,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-20 13:48:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2020-07-20 13:48:54,072 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 62 [2020-07-20 13:48:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:54,072 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2020-07-20 13:48:54,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:48:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-07-20 13:48:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 13:48:54,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:54,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:54,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:54,274 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash 359859562, now seen corresponding path program 1 times [2020-07-20 13:48:54,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:54,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020528925] [2020-07-20 13:48:54,276 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 13:48:54,382 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:54,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:54,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:48:54,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:54,401 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 13:48:54,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:54,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020528925] [2020-07-20 13:48:54,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:54,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:54,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059707869] [2020-07-20 13:48:54,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:54,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:54,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:54,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:54,405 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 3 states. [2020-07-20 13:48:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:54,423 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-07-20 13:48:54,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:54,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 13:48:54,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:54,425 INFO L225 Difference]: With dead ends: 73 [2020-07-20 13:48:54,425 INFO L226 Difference]: Without dead ends: 64 [2020-07-20 13:48:54,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 13:48:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-20 13:48:54,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-20 13:48:54,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-20 13:48:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2020-07-20 13:48:54,439 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 63 [2020-07-20 13:48:54,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:54,441 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2020-07-20 13:48:54,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2020-07-20 13:48:54,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 13:48:54,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:54,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:54,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:54,660 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:54,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1228040100, now seen corresponding path program 1 times [2020-07-20 13:48:54,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:54,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733738342] [2020-07-20 13:48:54,662 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 13:48:54,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:48:54,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:54,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 13:48:54,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:54,782 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 13:48:54,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:54,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733738342] [2020-07-20 13:48:54,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:54,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:48:54,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480422197] [2020-07-20 13:48:54,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:48:54,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:54,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:48:54,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:48:54,786 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 3 states. [2020-07-20 13:48:54,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:54,805 INFO L93 Difference]: Finished difference Result 117 states and 118 transitions. [2020-07-20 13:48:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:48:54,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 13:48:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:54,807 INFO L225 Difference]: With dead ends: 117 [2020-07-20 13:48:54,807 INFO L226 Difference]: Without dead ends: 110 [2020-07-20 13:48:54,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 13:48:54,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-20 13:48:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-07-20 13:48:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-20 13:48:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2020-07-20 13:48:54,818 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 63 [2020-07-20 13:48:54,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:54,819 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2020-07-20 13:48:54,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:48:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2020-07-20 13:48:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 13:48:54,820 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:48:54,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:48:55,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:55,034 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:48:55,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:48:55,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1291919834, now seen corresponding path program 1 times [2020-07-20 13:48:55,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:48:55,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186906293] [2020-07-20 13:48:55,036 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 13:48:55,162 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:48:55,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:48:55,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:48:55,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:48:55,195 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 13:48:55,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:48:55,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186906293] [2020-07-20 13:48:55,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:48:55,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:48:55,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420215122] [2020-07-20 13:48:55,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:48:55,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:48:55,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:48:55,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:48:55,199 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 6 states. [2020-07-20 13:48:55,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:48:55,234 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2020-07-20 13:48:55,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:48:55,235 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 13:48:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:48:55,236 INFO L225 Difference]: With dead ends: 109 [2020-07-20 13:48:55,236 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 13:48:55,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:48:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 13:48:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 13:48:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 13:48:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 13:48:55,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-07-20 13:48:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:48:55,239 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 13:48:55,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:48:55,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 13:48:55,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 13:48:55,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:48:55,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 13:48:56,367 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-07-20 13:48:56,505 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-07-20 13:48:56,769 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2020-07-20 13:48:56,981 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-07-20 13:48:57,277 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-07-20 13:48:57,663 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2020-07-20 13:48:57,829 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-07-20 13:48:58,146 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2020-07-20 13:48:58,267 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-07-20 13:48:58,495 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-07-20 13:48:58,626 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-07-20 13:48:59,096 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2020-07-20 13:48:59,206 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2020-07-20 13:48:59,457 INFO L271 CegarLoopResult]: At program point KeSetEventENTRY(lines 513 520) the Hoare annotation is: true [2020-07-20 13:48:59,458 INFO L268 CegarLoopResult]: For program point KeSetEventFINAL(lines 513 520) no Hoare annotation was computed. [2020-07-20 13:48:59,458 INFO L268 CegarLoopResult]: For program point KeSetEventEXIT(lines 513 520) no Hoare annotation was computed. [2020-07-20 13:48:59,458 INFO L271 CegarLoopResult]: At program point KbFilter_CompleteENTRY(lines 563 573) the Hoare annotation is: true [2020-07-20 13:48:59,458 INFO L271 CegarLoopResult]: At program point L569(line 569) the Hoare annotation is: true [2020-07-20 13:48:59,458 INFO L268 CegarLoopResult]: For program point L569-1(line 569) no Hoare annotation was computed. [2020-07-20 13:48:59,458 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteFINAL(lines 563 573) no Hoare annotation was computed. [2020-07-20 13:48:59,459 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteEXIT(lines 563 573) no Hoare annotation was computed. [2020-07-20 13:48:59,459 INFO L268 CegarLoopResult]: For program point stub_driver_initEXIT(lines 35 48) no Hoare annotation was computed. [2020-07-20 13:48:59,459 INFO L264 CegarLoopResult]: At program point stub_driver_initENTRY(lines 35 48) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) (not (= 1 ~pended~0)) (= 0 ~compRegistered~0))) [2020-07-20 13:48:59,459 INFO L268 CegarLoopResult]: For program point stub_driver_initFINAL(lines 35 48) no Hoare annotation was computed. [2020-07-20 13:48:59,459 INFO L268 CegarLoopResult]: For program point _BLAST_initFINAL(lines 49 70) no Hoare annotation was computed. [2020-07-20 13:48:59,460 INFO L264 CegarLoopResult]: At program point _BLAST_initENTRY(lines 49 70) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,460 INFO L268 CegarLoopResult]: For program point _BLAST_initEXIT(lines 49 70) no Hoare annotation was computed. [2020-07-20 13:48:59,460 INFO L271 CegarLoopResult]: At program point errorFnENTRY(lines 575 582) the Hoare annotation is: true [2020-07-20 13:48:59,460 INFO L268 CegarLoopResult]: For program point errorFnFINAL(lines 575 582) no Hoare annotation was computed. [2020-07-20 13:48:59,460 INFO L268 CegarLoopResult]: For program point errorFnEXIT(lines 575 582) no Hoare annotation was computed. [2020-07-20 13:48:59,461 INFO L268 CegarLoopResult]: For program point errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION(line 579) no Hoare annotation was computed. [2020-07-20 13:48:59,461 INFO L264 CegarLoopResult]: At program point L382(lines 375 415) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (not (= 1 ~pended~0))) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,461 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 286 420) no Hoare annotation was computed. [2020-07-20 13:48:59,461 INFO L268 CegarLoopResult]: For program point L407(lines 407 409) no Hoare annotation was computed. [2020-07-20 13:48:59,461 INFO L264 CegarLoopResult]: At program point L374(lines 367 416) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (not (= 1 ~pended~0))) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,462 INFO L268 CegarLoopResult]: For program point L383(lines 367 416) no Hoare annotation was computed. [2020-07-20 13:48:59,462 INFO L268 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2020-07-20 13:48:59,462 INFO L268 CegarLoopResult]: For program point L384(lines 384 413) no Hoare annotation was computed. [2020-07-20 13:48:59,462 INFO L264 CegarLoopResult]: At program point L351(lines 350 365) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (not (= 1 ~pended~0)) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= 6 ~MPR3~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,462 INFO L268 CegarLoopResult]: For program point L376(lines 376 380) no Hoare annotation was computed. [2020-07-20 13:48:59,462 INFO L268 CegarLoopResult]: For program point L368(lines 368 372) no Hoare annotation was computed. [2020-07-20 13:48:59,463 INFO L268 CegarLoopResult]: For program point L335(lines 321 366) no Hoare annotation was computed. [2020-07-20 13:48:59,463 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 286 420) no Hoare annotation was computed. [2020-07-20 13:48:59,463 INFO L268 CegarLoopResult]: For program point L385(lines 385 412) no Hoare annotation was computed. [2020-07-20 13:48:59,463 INFO L264 CegarLoopResult]: At program point L319(line 319) the Hoare annotation is: (or (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (<= 0 main_~status~1) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,463 INFO L268 CegarLoopResult]: For program point L319-1(lines 295 419) no Hoare annotation was computed. [2020-07-20 13:48:59,463 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 286 420) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,464 INFO L268 CegarLoopResult]: For program point L402(lines 402 410) no Hoare annotation was computed. [2020-07-20 13:48:59,464 INFO L264 CegarLoopResult]: At program point L394(lines 385 412) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (not (= 1 ~pended~0))) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,464 INFO L268 CegarLoopResult]: For program point L386(lines 386 392) no Hoare annotation was computed. [2020-07-20 13:48:59,464 INFO L264 CegarLoopResult]: At program point L353(lines 352 365) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (<= 0 main_~status~1) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,464 INFO L268 CegarLoopResult]: For program point L403(lines 403 405) no Hoare annotation was computed. [2020-07-20 13:48:59,465 INFO L268 CegarLoopResult]: For program point L387(lines 387 389) no Hoare annotation was computed. [2020-07-20 13:48:59,465 INFO L264 CegarLoopResult]: At program point L321(lines 295 419) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (not (= 1 ~pended~0))) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,465 INFO L268 CegarLoopResult]: For program point L338-1(lines 337 347) no Hoare annotation was computed. [2020-07-20 13:48:59,465 INFO L268 CegarLoopResult]: For program point L396(lines 396 400) no Hoare annotation was computed. [2020-07-20 13:48:59,465 INFO L268 CegarLoopResult]: For program point L330(lines 330 333) no Hoare annotation was computed. [2020-07-20 13:48:59,465 INFO L264 CegarLoopResult]: At program point L330-2(lines 330 333) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (not (= 1 ~pended~0)) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= 6 ~MPR3~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,466 INFO L264 CegarLoopResult]: At program point L398(line 398) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 13:48:59,466 INFO L268 CegarLoopResult]: For program point L357(line 357) no Hoare annotation was computed. [2020-07-20 13:48:59,466 INFO L268 CegarLoopResult]: For program point L477(lines 477 494) no Hoare annotation was computed. [2020-07-20 13:48:59,466 INFO L264 CegarLoopResult]: At program point L444(line 444) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2) (or .cse0 (= ~s~0 ~NP~0) (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 13:48:59,466 INFO L268 CegarLoopResult]: For program point L444-1(line 444) no Hoare annotation was computed. [2020-07-20 13:48:59,467 INFO L264 CegarLoopResult]: At program point L469(lines 442 497) the Hoare annotation is: (let ((.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (<= ~NP~0 1)))) (and (let ((.cse0 (= ~MPR1~0 ~s~0))) (or (and .cse0 (= ~setEventCalled~0 1) (= 259 IofCallDriver_~returnVal2~0)) .cse1 (and (<= IofCallDriver_~returnVal2~0 0) .cse0) (not (<= 5 ~MPR1~0)) .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0)))) (or .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 (not (= 0 ~compRegistered~0)) .cse3 (= ~SKIP1~0 ~s~0)))) [2020-07-20 13:48:59,467 INFO L264 CegarLoopResult]: At program point L457(lines 456 471) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (and (= ~MPR1~0 ~s~0) (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2 (= ~SKIP1~0 ~s~0)))) [2020-07-20 13:48:59,467 INFO L268 CegarLoopResult]: For program point L486(lines 486 493) no Hoare annotation was computed. [2020-07-20 13:48:59,467 INFO L268 CegarLoopResult]: For program point L449(lines 449 472) no Hoare annotation was computed. [2020-07-20 13:48:59,467 INFO L268 CegarLoopResult]: For program point L478(lines 478 484) no Hoare annotation was computed. [2020-07-20 13:48:59,468 INFO L264 CegarLoopResult]: At program point L445(line 445) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2) (or .cse0 (and (= ~s~0 ~NP~0) (= ~setEventCalled~0 1)) (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 13:48:59,468 INFO L264 CegarLoopResult]: At program point IofCallDriverENTRY(lines 435 498) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (= ~s~0 ~NP~0) (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))) (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2 (= ~SKIP1~0 ~s~0)))) [2020-07-20 13:48:59,468 INFO L264 CegarLoopResult]: At program point L491(line 491) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2) (or .cse0 (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 13:48:59,468 INFO L268 CegarLoopResult]: For program point L491-1(lines 473 495) no Hoare annotation was computed. [2020-07-20 13:48:59,468 INFO L268 CegarLoopResult]: For program point L454(lines 454 471) no Hoare annotation was computed. [2020-07-20 13:48:59,468 INFO L264 CegarLoopResult]: At program point L450(lines 449 472) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2 (= ~SKIP1~0 ~s~0)) (or .cse0 (= ~MPR1~0 ~s~0) (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 13:48:59,469 INFO L268 CegarLoopResult]: For program point IofCallDriverFINAL(lines 435 498) no Hoare annotation was computed. [2020-07-20 13:48:59,469 INFO L268 CegarLoopResult]: For program point IofCallDriverEXIT(lines 435 498) no Hoare annotation was computed. [2020-07-20 13:48:59,469 INFO L264 CegarLoopResult]: At program point L455(lines 454 471) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (= 1 ~pended~0)) (.cse2 (not (<= ~NP~0 1)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) .cse1 (not (= 0 ~compRegistered~0)) .cse2 (= ~SKIP1~0 ~s~0)) (or .cse0 (= ~MPR1~0 ~s~0) (not (<= 5 ~MPR1~0)) .cse1 (not (= ~NP~0 |old(~s~0)|)) .cse2 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 13:48:59,469 INFO L268 CegarLoopResult]: For program point L443(lines 443 446) no Hoare annotation was computed. [2020-07-20 13:48:59,469 INFO L268 CegarLoopResult]: For program point L443-1(lines 443 446) no Hoare annotation was computed. [2020-07-20 13:48:59,469 INFO L264 CegarLoopResult]: At program point L429(line 429) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 13:48:59,470 INFO L268 CegarLoopResult]: For program point L429-1(lines 421 434) no Hoare annotation was computed. [2020-07-20 13:48:59,470 INFO L264 CegarLoopResult]: At program point stubMoreProcessingRequiredENTRY(lines 421 434) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (= ~s~0 ~NP~0) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 13:48:59,470 INFO L268 CegarLoopResult]: For program point stubMoreProcessingRequiredEXIT(lines 421 434) no Hoare annotation was computed. [2020-07-20 13:48:59,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:48:59,470 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:48:59,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:48:59,470 INFO L264 CegarLoopResult]: At program point L541(line 541) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (<= 6 ~MPR3~0))) (.cse5 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4 .cse5))) [2020-07-20 13:48:59,471 INFO L268 CegarLoopResult]: For program point L539(lines 539 543) no Hoare annotation was computed. [2020-07-20 13:48:59,471 INFO L268 CegarLoopResult]: For program point L539-1(lines 526 545) no Hoare annotation was computed. [2020-07-20 13:48:59,471 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectEXIT(lines 521 562) no Hoare annotation was computed. [2020-07-20 13:48:59,471 INFO L268 CegarLoopResult]: For program point L527(lines 527 532) no Hoare annotation was computed. [2020-07-20 13:48:59,471 INFO L268 CegarLoopResult]: For program point L548(lines 548 560) no Hoare annotation was computed. [2020-07-20 13:48:59,471 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectFINAL(lines 521 562) no Hoare annotation was computed. [2020-07-20 13:48:59,472 INFO L264 CegarLoopResult]: At program point L534(lines 526 545) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (<= 6 ~MPR3~0))) (.cse5 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and (<= ~s~0 ~NP~0) (<= |old(~s~0)| ~s~0)) .cse0 .cse1 .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4 .cse5))) [2020-07-20 13:48:59,472 INFO L268 CegarLoopResult]: For program point L526(lines 526 545) no Hoare annotation was computed. [2020-07-20 13:48:59,472 INFO L264 CegarLoopResult]: At program point L551(lines 550 560) the Hoare annotation is: (let ((.cse7 (<= ~NP~0 1))) (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not .cse7)) (.cse4 (not (<= 6 ~MPR3~0))) (.cse5 (and .cse7 (= ~s~0 ~NP~0))) (.cse6 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4 .cse5 .cse6) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6)))) [2020-07-20 13:48:59,472 INFO L264 CegarLoopResult]: At program point KeWaitForSingleObjectENTRY(lines 521 562) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (<= 6 ~MPR3~0))) (.cse5 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 (= ~s~0 ~NP~0) .cse1 .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4 .cse5) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 (and (= ~MPR3~0 ~s~0) (= ~setEventCalled~0 1)) .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-07-20 13:48:59,473 INFO L264 CegarLoopResult]: At program point L549(lines 548 560) the Hoare annotation is: (let ((.cse7 (<= ~NP~0 1))) (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not .cse7)) (.cse4 (not (<= 6 ~MPR3~0))) (.cse5 (and .cse7 (= ~s~0 ~NP~0))) (.cse6 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4 .cse5 .cse6) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6)))) [2020-07-20 13:48:59,473 INFO L264 CegarLoopResult]: At program point L507(line 507) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 13:48:59,473 INFO L268 CegarLoopResult]: For program point L507-1(lines 499 512) no Hoare annotation was computed. [2020-07-20 13:48:59,473 INFO L264 CegarLoopResult]: At program point IofCompleteRequestENTRY(lines 499 512) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (= ~s~0 ~NP~0) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 13:48:59,473 INFO L268 CegarLoopResult]: For program point L503(lines 503 509) no Hoare annotation was computed. [2020-07-20 13:48:59,473 INFO L268 CegarLoopResult]: For program point IofCompleteRequestEXIT(lines 499 512) no Hoare annotation was computed. [2020-07-20 13:48:59,473 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:48:59,474 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) [2020-07-20 13:48:59,474 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:48:59,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:48:59,474 INFO L264 CegarLoopResult]: At program point L192(lines 192 194) the Hoare annotation is: (let ((.cse0 (<= 1 ~compRegistered~0))) (or (and (<= 259 KbFilter_PnP_~status~0) (= ~MPR3~0 ~s~0) (= ~setEventCalled~0 1) .cse0) (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) .cse0))) [2020-07-20 13:48:59,474 INFO L268 CegarLoopResult]: For program point L192-1(lines 192 194) no Hoare annotation was computed. [2020-07-20 13:48:59,474 INFO L268 CegarLoopResult]: For program point L151(lines 151 265) no Hoare annotation was computed. [2020-07-20 13:48:59,475 INFO L268 CegarLoopResult]: For program point L118(lines 118 276) no Hoare annotation was computed. [2020-07-20 13:48:59,475 INFO L264 CegarLoopResult]: At program point L209(line 209) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) (<= 1 ~compRegistered~0))) [2020-07-20 13:48:59,475 INFO L264 CegarLoopResult]: At program point L176(line 176) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,475 INFO L264 CegarLoopResult]: At program point L234(line 234) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,475 INFO L268 CegarLoopResult]: For program point L234-1(lines 230 236) no Hoare annotation was computed. [2020-07-20 13:48:59,475 INFO L268 CegarLoopResult]: For program point L160(lines 160 262) no Hoare annotation was computed. [2020-07-20 13:48:59,475 INFO L268 CegarLoopResult]: For program point L127(lines 127 273) no Hoare annotation was computed. [2020-07-20 13:48:59,476 INFO L264 CegarLoopResult]: At program point L218(line 218) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,476 INFO L264 CegarLoopResult]: At program point L185(lines 185 186) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (= ~NP~0 |old(~s~0)|))) (.cse4 (not (<= ~NP~0 1))) (.cse5 (not (<= 6 ~MPR3~0))) (.cse6 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (and (= ~s~0 ~NP~0) (<= 1 ~compRegistered~0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)))) [2020-07-20 13:48:59,476 INFO L268 CegarLoopResult]: For program point L218-1(lines 214 220) no Hoare annotation was computed. [2020-07-20 13:48:59,476 INFO L268 CegarLoopResult]: For program point L185-1(lines 185 186) no Hoare annotation was computed. [2020-07-20 13:48:59,476 INFO L268 CegarLoopResult]: For program point L169(lines 169 181) no Hoare annotation was computed. [2020-07-20 13:48:59,476 INFO L268 CegarLoopResult]: For program point L136(lines 136 270) no Hoare annotation was computed. [2020-07-20 13:48:59,476 INFO L268 CegarLoopResult]: For program point L103(lines 103 281) no Hoare annotation was computed. [2020-07-20 13:48:59,477 INFO L271 CegarLoopResult]: At program point L260(lines 164 261) the Hoare annotation is: true [2020-07-20 13:48:59,477 INFO L268 CegarLoopResult]: For program point KbFilter_PnPEXIT(lines 73 285) no Hoare annotation was computed. [2020-07-20 13:48:59,477 INFO L268 CegarLoopResult]: For program point L145(lines 145 267) no Hoare annotation was computed. [2020-07-20 13:48:59,477 INFO L268 CegarLoopResult]: For program point L112(lines 112 278) no Hoare annotation was computed. [2020-07-20 13:48:59,477 INFO L264 CegarLoopResult]: At program point L104(lines 103 281) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,477 INFO L268 CegarLoopResult]: For program point L154(lines 154 264) no Hoare annotation was computed. [2020-07-20 13:48:59,477 INFO L268 CegarLoopResult]: For program point L121(lines 121 275) no Hoare annotation was computed. [2020-07-20 13:48:59,478 INFO L264 CegarLoopResult]: At program point KbFilter_PnPENTRY(lines 73 285) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (= ~NP~0 |old(~s~0)|))) (.cse4 (not (<= ~NP~0 1))) (.cse5 (not (<= 6 ~MPR3~0))) (.cse6 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)))) [2020-07-20 13:48:59,478 INFO L264 CegarLoopResult]: At program point L171(line 171) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,478 INFO L268 CegarLoopResult]: For program point KbFilter_PnPFINAL(lines 73 285) no Hoare annotation was computed. [2020-07-20 13:48:59,478 INFO L264 CegarLoopResult]: At program point L163(lines 109 279) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,478 INFO L268 CegarLoopResult]: For program point L130(lines 130 272) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L139(lines 139 269) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L106(lines 106 280) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L230(lines 230 236) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L264 CegarLoopResult]: At program point L255(lines 255 256) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L255-1(lines 255 256) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L214(lines 214 220) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L148(lines 148 266) no Hoare annotation was computed. [2020-07-20 13:48:59,479 INFO L268 CegarLoopResult]: For program point L115(lines 115 277) no Hoare annotation was computed. [2020-07-20 13:48:59,480 INFO L264 CegarLoopResult]: At program point L107(lines 106 280) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,480 INFO L268 CegarLoopResult]: For program point L198(lines 198 204) no Hoare annotation was computed. [2020-07-20 13:48:59,480 INFO L268 CegarLoopResult]: For program point L190(lines 190 196) no Hoare annotation was computed. [2020-07-20 13:48:59,480 INFO L268 CegarLoopResult]: For program point L157(lines 157 263) no Hoare annotation was computed. [2020-07-20 13:48:59,480 INFO L268 CegarLoopResult]: For program point L124(lines 124 274) no Hoare annotation was computed. [2020-07-20 13:48:59,480 INFO L268 CegarLoopResult]: For program point L190-2(lines 164 259) no Hoare annotation was computed. [2020-07-20 13:48:59,480 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L240-1(line 240) no Hoare annotation was computed. [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L174(lines 174 180) no Hoare annotation was computed. [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L174-1(lines 169 181) no Hoare annotation was computed. [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L199(lines 199 203) no Hoare annotation was computed. [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L133(lines 133 271) no Hoare annotation was computed. [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L100(lines 100 282) no Hoare annotation was computed. [2020-07-20 13:48:59,481 INFO L264 CegarLoopResult]: At program point L224(lines 224 225) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,481 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 225) no Hoare annotation was computed. [2020-07-20 13:48:59,482 INFO L264 CegarLoopResult]: At program point L249(line 249) the Hoare annotation is: (or (not (<= 3 ~SKIP1~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 13:48:59,482 INFO L268 CegarLoopResult]: For program point L249-1(lines 245 251) no Hoare annotation was computed. [2020-07-20 13:48:59,482 INFO L268 CegarLoopResult]: For program point L142(lines 142 268) no Hoare annotation was computed. [2020-07-20 13:48:59,482 INFO L268 CegarLoopResult]: For program point L109(lines 109 279) no Hoare annotation was computed. [2020-07-20 13:48:59,482 INFO L264 CegarLoopResult]: At program point L101(lines 100 282) the Hoare annotation is: (let ((.cse0 (not (<= 3 ~SKIP1~0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (= 1 ~pended~0)) (.cse3 (not (= ~NP~0 |old(~s~0)|))) (.cse4 (not (<= ~NP~0 1))) (.cse5 (not (<= 6 ~MPR3~0))) (.cse6 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)))) [2020-07-20 13:48:59,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:48:59 BoogieIcfgContainer [2020-07-20 13:48:59,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:48:59,524 INFO L168 Benchmark]: Toolchain (without parser) took 13730.16 ms. Allocated memory was 144.7 MB in the beginning and 339.2 MB in the end (delta: 194.5 MB). Free memory was 102.2 MB in the beginning and 145.0 MB in the end (delta: -42.8 MB). Peak memory consumption was 183.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:48:59,525 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 13:48:59,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.35 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.8 MB in the beginning and 179.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:48:59,526 INFO L168 Benchmark]: Boogie Preprocessor took 60.29 ms. Allocated memory is still 202.9 MB. Free memory was 179.7 MB in the beginning and 176.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:48:59,527 INFO L168 Benchmark]: RCFGBuilder took 861.71 ms. Allocated memory is still 202.9 MB. Free memory was 176.6 MB in the beginning and 131.1 MB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:48:59,527 INFO L168 Benchmark]: TraceAbstraction took 12220.97 ms. Allocated memory was 202.9 MB in the beginning and 339.2 MB in the end (delta: 136.3 MB). Free memory was 131.1 MB in the beginning and 145.0 MB in the end (delta: -13.9 MB). Peak memory consumption was 153.8 MB. Max. memory is 7.1 GB. [2020-07-20 13:48:59,530 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 579.35 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.8 MB in the beginning and 179.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.29 ms. Allocated memory is still 202.9 MB. Free memory was 179.7 MB in the beginning and 176.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 861.71 ms. Allocated memory is still 202.9 MB. Free memory was 176.6 MB in the beginning and 131.1 MB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12220.97 ms. Allocated memory was 202.9 MB in the beginning and 339.2 MB in the end (delta: 136.3 MB). Free memory was 131.1 MB in the beginning and 145.0 MB in the end (delta: -13.9 MB). Peak memory consumption was 153.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 579]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || ((3 <= SKIP1 && NP <= 1) && !(1 == pended))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || ((3 <= SKIP1 && NP <= 1) && !(1 == pended))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || 0 <= status) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: (((((!(3 <= SKIP1) || !(SKIP1 == \old(s))) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((!(3 <= SKIP1) || MPR1 == s) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: (((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(3 <= SKIP1)) || !(5 <= MPR1)) || 1 == pended) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) && ((((((((s <= NP && \old(s) <= s) || !(3 <= SKIP1)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || (s == NP && 0 == compRegistered)) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered))) && ((((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered))) || !(\old(myStatus) + 1073741637 <= 0)) || myStatus + 1073741637 <= 0) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: (((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (MPR1 == s && setEventCalled == 1)) || !(1 <= compRegistered)) && (((((!(3 <= SKIP1) || !(SKIP1 == \old(s))) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: (((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) && ((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(3 <= SKIP1)) || !(5 <= MPR1)) || 1 == pended) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: ((((((((((MPR1 == s && setEventCalled == 1) && 259 == returnVal2) || !(3 <= SKIP1)) || (returnVal2 <= 0 && MPR1 == s)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) && (((((!(3 <= SKIP1) || !(SKIP1 == \old(s))) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) && ((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(3 <= SKIP1)) || !(5 <= MPR1)) || 1 == pended) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || ((3 <= SKIP1 && NP <= 1) && !(1 == pended))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((((!(3 <= SKIP1) || !(5 <= MPR1)) || 1 == pended) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: (((((!(3 <= SKIP1) || !(SKIP1 == \old(s))) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((!(3 <= SKIP1) || MPR1 == s) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || !(\old(SKIP1) == \old(s))) || (((((((3 <= SKIP1 && NP <= 1) && s == NP) && 0 <= status) && !(1 == pended)) && 5 <= MPR1) && 0 == compRegistered) && 6 <= MPR3)) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || ((3 <= SKIP1 && NP <= 1) && !(1 == pended))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2096 SDtfs, 1001 SDslu, 1773 SDs, 0 SdLazy, 464 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 790 GetRequests, 754 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 82 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 269 PreInvPairs, 329 NumberOfFragments, 2060 HoareAnnotationTreeSize, 269 FomulaSimplifications, 283 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 53 FomulaSimplificationsInter, 2999 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 801 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 785 ConstructedInterpolants, 0 QuantifiedInterpolants, 105919 SizeOfPredicates, 16 NumberOfNonLiveVariables, 7001 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...