/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 2 -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 [2020-07-21 13:32:51,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:32:51,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:32:51,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:32:51,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:32:51,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:32:51,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:32:51,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:32:51,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:32:51,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:32:51,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:32:51,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:32:51,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:32:51,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:32:51,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:32:51,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:32:51,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:32:51,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:32:51,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:32:51,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:32:51,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:32:51,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:32:51,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:32:51,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:32:51,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 13:32:51,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 13:32:51,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 13:32:51,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 13:32:51,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 13:32:51,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 13:32:51,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 13:32:51,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 13:32:51,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 13:32:51,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 13:32:51,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 13:32:51,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 13:32:51,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 13:32:51,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 13:32:51,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:32:51,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:32:51,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:32:51,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 13:32:51,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:32:51,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:32:51,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:32:51,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:32:51,688 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:32:51,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:32:51,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:32:51,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:32:51,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:32:51,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:32:51,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:32:51,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:32:51,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:32:51,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:32:51,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:32:51,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:32:51,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:32:51,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:32:51,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:32:51,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:32:51,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:32:51,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:32:51,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:32:51,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:32:51,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:32:51,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:32:51,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:51,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:32:51,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:32:51,695 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 -> 2 [2020-07-21 13:32:52,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:32:52,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:32:52,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:32:52,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:32:52,226 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:32:52,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-21 13:32:52,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2080eecf/2fb17a7f7793472c880f27e410277592/FLAG8bdb0507d [2020-07-21 13:32:53,181 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:32:53,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-21 13:32:53,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2080eecf/2fb17a7f7793472c880f27e410277592/FLAG8bdb0507d [2020-07-21 13:32:53,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2080eecf/2fb17a7f7793472c880f27e410277592 [2020-07-21 13:32:53,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:32:53,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:32:53,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:32:53,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:32:53,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:32:53,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:32:53" (1/1) ... [2020-07-21 13:32:53,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740fa54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:53, skipping insertion in model container [2020-07-21 13:32:53,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:32:53" (1/1) ... [2020-07-21 13:32:53,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:32:53,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:32:53,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:32:53,988 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:32:54,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:32:54,087 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:32:54,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54 WrapperNode [2020-07-21 13:32:54,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:32:54,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:32:54,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:32:54,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:32:54,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... [2020-07-21 13:32:54,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:32:54,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:32:54,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:32:54,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:32:54,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:32:54,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:32:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:32:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-21 13:32:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-21 13:32:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-21 13:32:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:32:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-21 13:32:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-21 13:32:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-21 13:32:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-21 13:32:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-21 13:32:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-21 13:32:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-21 13:32:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:32:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-21 13:32:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:32:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-21 13:32:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-21 13:32:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-21 13:32:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-21 13:32:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-21 13:32:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-21 13:32:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-21 13:32:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-21 13:32:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-21 13:32:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-21 13:32:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:32:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-21 13:32:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:32:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:32:54,832 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 13:32:55,038 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-07-21 13:32:55,039 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-07-21 13:32:55,042 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 13:32:55,122 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-07-21 13:32:55,122 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-07-21 13:32:55,148 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 13:32:55,188 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-21 13:32:55,189 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-21 13:32:55,211 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-21 13:32:55,472 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-21 13:32:55,473 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-21 13:32:55,512 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:32:55,513 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 13:32:55,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:32:55 BoogieIcfgContainer [2020-07-21 13:32:55,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:32:55,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:32:55,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:32:55,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:32:55,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:32:53" (1/3) ... [2020-07-21 13:32:55,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f190c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:32:55, skipping insertion in model container [2020-07-21 13:32:55,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:32:54" (2/3) ... [2020-07-21 13:32:55,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f190c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:32:55, skipping insertion in model container [2020-07-21 13:32:55,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:32:55" (3/3) ... [2020-07-21 13:32:55,551 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-07-21 13:32:55,573 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:32:55,617 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:32:55,650 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:32:55,710 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:32:55,710 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:32:55,711 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:32:55,711 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:32:55,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:32:55,712 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:32:55,712 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:32:55,712 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:32:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-21 13:32:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 13:32:55,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:55,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:32:55,765 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:32:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:32:55,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1530382191, now seen corresponding path program 1 times [2020-07-21 13:32:55,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:32:55,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420393318] [2020-07-21 13:32:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:55,992 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:32:55,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:32:55,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 13:32:56,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:32:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:32:56,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:32:56,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420393318] [2020-07-21 13:32:56,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:32:56,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:32:56,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037964036] [2020-07-21 13:32:56,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:32:56,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:32:56,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:32:56,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:32:56,118 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-21 13:32:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:32:56,286 INFO L93 Difference]: Finished difference Result 286 states and 438 transitions. [2020-07-21 13:32:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:32:56,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-07-21 13:32:56,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:32:56,314 INFO L225 Difference]: With dead ends: 286 [2020-07-21 13:32:56,315 INFO L226 Difference]: Without dead ends: 140 [2020-07-21 13:32:56,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:32:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-21 13:32:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-21 13:32:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-21 13:32:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2020-07-21 13:32:56,435 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 20 [2020-07-21 13:32:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:32:56,436 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2020-07-21 13:32:56,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:32:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2020-07-21 13:32:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 13:32:56,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:56,438 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] [2020-07-21 13:32:56,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:56,641 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:32:56,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:32:56,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1141575010, now seen corresponding path program 1 times [2020-07-21 13:32:56,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:32:56,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374446738] [2020-07-21 13:32:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:56,902 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:32:56,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:32:56,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:32:56,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:32:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:32:56,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:32:56,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374446738] [2020-07-21 13:32:56,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:32:56,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:32:56,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148685822] [2020-07-21 13:32:56,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:32:56,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:32:56,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:32:56,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:32:56,955 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 3 states. [2020-07-21 13:32:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:32:57,295 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions. [2020-07-21 13:32:57,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:32:57,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-21 13:32:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:32:57,302 INFO L225 Difference]: With dead ends: 258 [2020-07-21 13:32:57,303 INFO L226 Difference]: Without dead ends: 202 [2020-07-21 13:32:57,306 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 [2020-07-21 13:32:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-21 13:32:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2020-07-21 13:32:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-07-21 13:32:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 252 transitions. [2020-07-21 13:32:57,350 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 252 transitions. Word has length 26 [2020-07-21 13:32:57,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:32:57,351 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 252 transitions. [2020-07-21 13:32:57,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:32:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 252 transitions. [2020-07-21 13:32:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 13:32:57,354 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:57,354 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] [2020-07-21 13:32:57,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:57,571 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:32:57,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:32:57,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1029098174, now seen corresponding path program 1 times [2020-07-21 13:32:57,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:32:57,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311049828] [2020-07-21 13:32:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:57,713 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:32:57,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:32:57,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:32:57,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:32:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:32:57,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:32:57,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311049828] [2020-07-21 13:32:57,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:32:57,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:32:57,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447214368] [2020-07-21 13:32:57,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:32:57,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:32:57,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:32:57,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:32:57,748 INFO L87 Difference]: Start difference. First operand 189 states and 252 transitions. Second operand 3 states. [2020-07-21 13:32:57,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:32:57,808 INFO L93 Difference]: Finished difference Result 310 states and 406 transitions. [2020-07-21 13:32:57,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:32:57,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-21 13:32:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:32:57,815 INFO L225 Difference]: With dead ends: 310 [2020-07-21 13:32:57,815 INFO L226 Difference]: Without dead ends: 248 [2020-07-21 13:32:57,817 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 [2020-07-21 13:32:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-21 13:32:57,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2020-07-21 13:32:57,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-21 13:32:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2020-07-21 13:32:57,854 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 27 [2020-07-21 13:32:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:32:57,855 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2020-07-21 13:32:57,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:32:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2020-07-21 13:32:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-21 13:32:57,858 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:57,859 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] [2020-07-21 13:32:58,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:58,074 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:32:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:32:58,075 INFO L82 PathProgramCache]: Analyzing trace with hash 742933031, now seen corresponding path program 1 times [2020-07-21 13:32:58,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:32:58,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361217291] [2020-07-21 13:32:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:58,200 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:32:58,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:32:58,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:32:58,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:32:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:32:58,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:32:58,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361217291] [2020-07-21 13:32:58,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:32:58,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:32:58,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863086088] [2020-07-21 13:32:58,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:32:58,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:32:58,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:32:58,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:32:58,245 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand 3 states. [2020-07-21 13:32:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:32:58,382 INFO L93 Difference]: Finished difference Result 214 states and 284 transitions. [2020-07-21 13:32:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:32:58,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-21 13:32:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:32:58,388 INFO L225 Difference]: With dead ends: 214 [2020-07-21 13:32:58,388 INFO L226 Difference]: Without dead ends: 211 [2020-07-21 13:32:58,390 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 [2020-07-21 13:32:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-21 13:32:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-21 13:32:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-21 13:32:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2020-07-21 13:32:58,420 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 37 [2020-07-21 13:32:58,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:32:58,422 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2020-07-21 13:32:58,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:32:58,422 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2020-07-21 13:32:58,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-21 13:32:58,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:58,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:32:58,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:58,642 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:32:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:32:58,643 INFO L82 PathProgramCache]: Analyzing trace with hash 324263340, now seen corresponding path program 1 times [2020-07-21 13:32:58,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:32:58,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527800919] [2020-07-21 13:32:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:58,849 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:32:58,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:32:58,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:32:58,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:32:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:32:58,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:32:58,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527800919] [2020-07-21 13:32:58,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:32:58,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:32:58,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69540866] [2020-07-21 13:32:58,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:32:58,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:32:58,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:32:58,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:32:58,943 INFO L87 Difference]: Start difference. First operand 211 states and 281 transitions. Second operand 5 states. [2020-07-21 13:32:59,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:32:59,295 INFO L93 Difference]: Finished difference Result 324 states and 427 transitions. [2020-07-21 13:32:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:32:59,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-07-21 13:32:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:32:59,300 INFO L225 Difference]: With dead ends: 324 [2020-07-21 13:32:59,301 INFO L226 Difference]: Without dead ends: 258 [2020-07-21 13:32:59,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:32:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-07-21 13:32:59,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 229. [2020-07-21 13:32:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 13:32:59,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 302 transitions. [2020-07-21 13:32:59,374 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 302 transitions. Word has length 45 [2020-07-21 13:32:59,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:32:59,376 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 302 transitions. [2020-07-21 13:32:59,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:32:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 302 transitions. [2020-07-21 13:32:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-21 13:32:59,381 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:59,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:32:59,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:59,593 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:32:59,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:32:59,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1473664029, now seen corresponding path program 1 times [2020-07-21 13:32:59,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:32:59,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138489683] [2020-07-21 13:32:59,596 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:32:59,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:32:59,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:32:59,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 13:32:59,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:32:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:32:59,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:32:59,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138489683] [2020-07-21 13:32:59,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:32:59,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:32:59,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842704716] [2020-07-21 13:32:59,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:32:59,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:32:59,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:32:59,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:32:59,786 INFO L87 Difference]: Start difference. First operand 229 states and 302 transitions. Second operand 3 states. [2020-07-21 13:32:59,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:32:59,848 INFO L93 Difference]: Finished difference Result 285 states and 369 transitions. [2020-07-21 13:32:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:32:59,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-21 13:32:59,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:32:59,852 INFO L225 Difference]: With dead ends: 285 [2020-07-21 13:32:59,852 INFO L226 Difference]: Without dead ends: 221 [2020-07-21 13:32:59,860 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 [2020-07-21 13:32:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-21 13:32:59,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 200. [2020-07-21 13:32:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-07-21 13:32:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 263 transitions. [2020-07-21 13:32:59,894 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 263 transitions. Word has length 45 [2020-07-21 13:32:59,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:32:59,894 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 263 transitions. [2020-07-21 13:32:59,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:32:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 263 transitions. [2020-07-21 13:32:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 13:32:59,904 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:32:59,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:33:00,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:00,120 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:00,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:00,121 INFO L82 PathProgramCache]: Analyzing trace with hash 726030577, now seen corresponding path program 1 times [2020-07-21 13:33:00,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:00,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096430] [2020-07-21 13:33:00,123 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:00,234 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:33:00,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:00,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 13:33:00,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:00,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:00,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096430] [2020-07-21 13:33:00,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:00,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:33:00,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719827668] [2020-07-21 13:33:00,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:33:00,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:00,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:33:00,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:33:00,270 INFO L87 Difference]: Start difference. First operand 200 states and 263 transitions. Second operand 3 states. [2020-07-21 13:33:00,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:00,370 INFO L93 Difference]: Finished difference Result 259 states and 338 transitions. [2020-07-21 13:33:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:33:00,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 13:33:00,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:00,375 INFO L225 Difference]: With dead ends: 259 [2020-07-21 13:33:00,376 INFO L226 Difference]: Without dead ends: 198 [2020-07-21 13:33:00,378 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 [2020-07-21 13:33:00,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-07-21 13:33:00,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-07-21 13:33:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-21 13:33:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2020-07-21 13:33:00,432 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 51 [2020-07-21 13:33:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:00,433 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2020-07-21 13:33:00,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:33:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2020-07-21 13:33:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-21 13:33:00,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:00,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:33:00,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:00,651 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:00,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:00,652 INFO L82 PathProgramCache]: Analyzing trace with hash 572107035, now seen corresponding path program 1 times [2020-07-21 13:33:00,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:00,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392954424] [2020-07-21 13:33:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:00,770 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:33:00,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:00,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:33:00,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:00,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:00,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392954424] [2020-07-21 13:33:00,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:00,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 13:33:00,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008846344] [2020-07-21 13:33:00,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:33:00,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:00,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:33:00,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:33:00,863 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand 6 states. [2020-07-21 13:33:01,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:01,376 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2020-07-21 13:33:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:33:01,377 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-07-21 13:33:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:01,380 INFO L225 Difference]: With dead ends: 233 [2020-07-21 13:33:01,381 INFO L226 Difference]: Without dead ends: 209 [2020-07-21 13:33:01,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:33:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-07-21 13:33:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2020-07-21 13:33:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-07-21 13:33:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 265 transitions. [2020-07-21 13:33:01,405 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 265 transitions. Word has length 50 [2020-07-21 13:33:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:01,406 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 265 transitions. [2020-07-21 13:33:01,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:33:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 265 transitions. [2020-07-21 13:33:01,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 13:33:01,409 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:01,409 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] [2020-07-21 13:33:01,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:01,625 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:01,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1461171158, now seen corresponding path program 1 times [2020-07-21 13:33:01,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:01,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985366814] [2020-07-21 13:33:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:01,797 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:33:01,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:01,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 13:33:01,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:01,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:01,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985366814] [2020-07-21 13:33:01,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:01,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:33:01,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326171350] [2020-07-21 13:33:01,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:33:01,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:01,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:33:01,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:33:01,831 INFO L87 Difference]: Start difference. First operand 204 states and 265 transitions. Second operand 3 states. [2020-07-21 13:33:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:01,868 INFO L93 Difference]: Finished difference Result 213 states and 276 transitions. [2020-07-21 13:33:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:33:01,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 13:33:01,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:01,871 INFO L225 Difference]: With dead ends: 213 [2020-07-21 13:33:01,872 INFO L226 Difference]: Without dead ends: 107 [2020-07-21 13:33:01,873 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 [2020-07-21 13:33:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-21 13:33:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-21 13:33:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-21 13:33:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2020-07-21 13:33:01,886 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 52 [2020-07-21 13:33:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:01,887 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2020-07-21 13:33:01,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:33:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2020-07-21 13:33:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-21 13:33:01,888 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:01,889 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] [2020-07-21 13:33:02,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:02,104 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:02,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:02,105 INFO L82 PathProgramCache]: Analyzing trace with hash -367309916, now seen corresponding path program 1 times [2020-07-21 13:33:02,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:02,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301647133] [2020-07-21 13:33:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:02,243 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:33:02,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:02,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:33:02,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:02,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:02,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301647133] [2020-07-21 13:33:02,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:02,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 13:33:02,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743167643] [2020-07-21 13:33:02,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:33:02,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:02,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:33:02,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 13:33:02,304 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 4 states. [2020-07-21 13:33:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:02,419 INFO L93 Difference]: Finished difference Result 117 states and 131 transitions. [2020-07-21 13:33:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:33:02,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-07-21 13:33:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:02,423 INFO L225 Difference]: With dead ends: 117 [2020-07-21 13:33:02,423 INFO L226 Difference]: Without dead ends: 91 [2020-07-21 13:33:02,424 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 [2020-07-21 13:33:02,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-21 13:33:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-21 13:33:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-21 13:33:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2020-07-21 13:33:02,437 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 59 [2020-07-21 13:33:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:02,438 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2020-07-21 13:33:02,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:33:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2020-07-21 13:33:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 13:33:02,440 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:02,440 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] [2020-07-21 13:33:02,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:02,656 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:02,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:02,657 INFO L82 PathProgramCache]: Analyzing trace with hash -14076392, now seen corresponding path program 1 times [2020-07-21 13:33:02,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:02,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538578089] [2020-07-21 13:33:02,660 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:02,795 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:33:02,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:02,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:33:02,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:02,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:02,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538578089] [2020-07-21 13:33:02,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:02,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:33:02,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928192675] [2020-07-21 13:33:02,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:33:02,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:02,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:33:02,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:33:02,824 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand 3 states. [2020-07-21 13:33:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:02,865 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2020-07-21 13:33:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:33:02,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 13:33:02,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:02,867 INFO L225 Difference]: With dead ends: 105 [2020-07-21 13:33:02,868 INFO L226 Difference]: Without dead ends: 86 [2020-07-21 13:33:02,870 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 [2020-07-21 13:33:02,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-21 13:33:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2020-07-21 13:33:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-21 13:33:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2020-07-21 13:33:02,880 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 61 [2020-07-21 13:33:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:02,884 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2020-07-21 13:33:02,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:33:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2020-07-21 13:33:02,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 13:33:02,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:02,889 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] [2020-07-21 13:33:03,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:03,104 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:03,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:03,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1135324297, now seen corresponding path program 1 times [2020-07-21 13:33:03,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:03,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352632494] [2020-07-21 13:33:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:03,245 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:33:03,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:03,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 13:33:03,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:03,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:03,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352632494] [2020-07-21 13:33:03,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:03,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:33:03,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427813980] [2020-07-21 13:33:03,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:33:03,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:03,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:33:03,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:33:03,280 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 3 states. [2020-07-21 13:33:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:03,305 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2020-07-21 13:33:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:33:03,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 13:33:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:03,308 INFO L225 Difference]: With dead ends: 108 [2020-07-21 13:33:03,308 INFO L226 Difference]: Without dead ends: 87 [2020-07-21 13:33:03,309 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 [2020-07-21 13:33:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-21 13:33:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2020-07-21 13:33:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-21 13:33:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-07-21 13:33:03,322 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 61 [2020-07-21 13:33:03,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:03,323 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-07-21 13:33:03,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:33:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-07-21 13:33:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 13:33:03,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:03,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:33:03,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:03,541 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:03,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:03,542 INFO L82 PathProgramCache]: Analyzing trace with hash -600882406, now seen corresponding path program 1 times [2020-07-21 13:33:03,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:03,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590847210] [2020-07-21 13:33:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:03,709 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:33:03,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:03,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:33:03,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:03,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:03,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590847210] [2020-07-21 13:33:03,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:03,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:33:03,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876115997] [2020-07-21 13:33:03,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:33:03,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:03,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:33:03,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:33:03,811 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 5 states. [2020-07-21 13:33:03,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:03,990 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2020-07-21 13:33:03,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:33:03,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-07-21 13:33:03,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:03,994 INFO L225 Difference]: With dead ends: 92 [2020-07-21 13:33:03,995 INFO L226 Difference]: Without dead ends: 71 [2020-07-21 13:33:03,996 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 [2020-07-21 13:33:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-21 13:33:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-07-21 13:33:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-21 13:33:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2020-07-21 13:33:04,018 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 61 [2020-07-21 13:33:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:04,019 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2020-07-21 13:33:04,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:33:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2020-07-21 13:33:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-21 13:33:04,020 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:04,021 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] [2020-07-21 13:33:04,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:04,234 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:04,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:04,235 INFO L82 PathProgramCache]: Analyzing trace with hash 475938380, now seen corresponding path program 1 times [2020-07-21 13:33:04,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:04,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881169809] [2020-07-21 13:33:04,236 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:04,350 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:33:04,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:04,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 13:33:04,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:04,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:04,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881169809] [2020-07-21 13:33:04,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:04,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 13:33:04,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238309327] [2020-07-21 13:33:04,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:33:04,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:04,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:33:04,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:33:04,398 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 6 states. [2020-07-21 13:33:04,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:04,433 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2020-07-21 13:33:04,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:33:04,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-21 13:33:04,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:04,435 INFO L225 Difference]: With dead ends: 78 [2020-07-21 13:33:04,435 INFO L226 Difference]: Without dead ends: 71 [2020-07-21 13:33:04,436 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 [2020-07-21 13:33:04,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-21 13:33:04,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-07-21 13:33:04,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-21 13:33:04,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2020-07-21 13:33:04,450 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 62 [2020-07-21 13:33:04,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:04,450 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2020-07-21 13:33:04,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:33:04,450 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-07-21 13:33:04,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 13:33:04,451 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:04,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:33:04,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:04,666 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash 359859562, now seen corresponding path program 1 times [2020-07-21 13:33:04,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:04,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096855677] [2020-07-21 13:33:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:04,750 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:33:04,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:04,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:33:04,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:04,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:04,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096855677] [2020-07-21 13:33:04,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:04,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:33:04,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750731905] [2020-07-21 13:33:04,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:33:04,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:04,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:33:04,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:33:04,777 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 3 states. [2020-07-21 13:33:04,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:04,796 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-07-21 13:33:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:33:04,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-21 13:33:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:04,798 INFO L225 Difference]: With dead ends: 73 [2020-07-21 13:33:04,798 INFO L226 Difference]: Without dead ends: 64 [2020-07-21 13:33:04,798 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 [2020-07-21 13:33:04,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-21 13:33:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-21 13:33:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-21 13:33:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2020-07-21 13:33:04,804 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 63 [2020-07-21 13:33:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:04,805 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2020-07-21 13:33:04,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:33:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2020-07-21 13:33:04,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 13:33:04,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:04,806 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] [2020-07-21 13:33:05,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:05,021 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:05,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1228040100, now seen corresponding path program 1 times [2020-07-21 13:33:05,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:05,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105835991] [2020-07-21 13:33:05,022 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:05,111 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 13:33:05,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:05,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:33:05,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:05,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:05,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105835991] [2020-07-21 13:33:05,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:05,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:33:05,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600092812] [2020-07-21 13:33:05,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:33:05,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:05,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:33:05,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:33:05,140 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 3 states. [2020-07-21 13:33:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:05,167 INFO L93 Difference]: Finished difference Result 117 states and 118 transitions. [2020-07-21 13:33:05,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:33:05,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-21 13:33:05,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:05,169 INFO L225 Difference]: With dead ends: 117 [2020-07-21 13:33:05,169 INFO L226 Difference]: Without dead ends: 110 [2020-07-21 13:33:05,170 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 [2020-07-21 13:33:05,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-21 13:33:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-07-21 13:33:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-21 13:33:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2020-07-21 13:33:05,181 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 63 [2020-07-21 13:33:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:05,182 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2020-07-21 13:33:05,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:33:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2020-07-21 13:33:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 13:33:05,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:33:05,183 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] [2020-07-21 13:33:05,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:05,397 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:33:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:33:05,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1291919834, now seen corresponding path program 1 times [2020-07-21 13:33:05,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:33:05,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967712704] [2020-07-21 13:33:05,398 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:05,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:33:05,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:33:05,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:33:05,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:33:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:33:05,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:33:05,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967712704] [2020-07-21 13:33:05,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:33:05,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 13:33:05,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985639271] [2020-07-21 13:33:05,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:33:05,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:33:05,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:33:05,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:33:05,575 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 6 states. [2020-07-21 13:33:05,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:33:05,599 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2020-07-21 13:33:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:33:05,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 13:33:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:33:05,600 INFO L225 Difference]: With dead ends: 109 [2020-07-21 13:33:05,600 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:33:05,601 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 [2020-07-21 13:33:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:33:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:33:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:33:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:33:05,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-07-21 13:33:05,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:33:05,602 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:33:05,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:33:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:33:05,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:33:05,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:33:05,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:33:06,588 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-07-21 13:33:06,880 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-21 13:33:07,176 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-07-21 13:33:07,568 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2020-07-21 13:33:07,700 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-07-21 13:33:07,906 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-07-21 13:33:08,285 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-07-21 13:33:08,491 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 13:33:08,670 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-07-21 13:33:08,813 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-07-21 13:33:09,036 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-21 13:33:09,204 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-07-21 13:33:09,419 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 13:33:09,715 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-07-21 13:33:09,949 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-07-21 13:33:10,073 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 13:33:10,265 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-07-21 13:33:10,435 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-07-21 13:33:10,568 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 13:33:10,701 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-07-21 13:33:10,809 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 13:33:10,953 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 13:33:11,169 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-07-21 13:33:11,328 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2020-07-21 13:33:11,502 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-07-21 13:33:11,620 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-07-21 13:33:11,670 INFO L271 CegarLoopResult]: At program point KeSetEventENTRY(lines 513 520) the Hoare annotation is: true [2020-07-21 13:33:11,670 INFO L268 CegarLoopResult]: For program point KeSetEventFINAL(lines 513 520) no Hoare annotation was computed. [2020-07-21 13:33:11,670 INFO L268 CegarLoopResult]: For program point KeSetEventEXIT(lines 513 520) no Hoare annotation was computed. [2020-07-21 13:33:11,671 INFO L271 CegarLoopResult]: At program point KbFilter_CompleteENTRY(lines 563 573) the Hoare annotation is: true [2020-07-21 13:33:11,671 INFO L271 CegarLoopResult]: At program point L569(line 569) the Hoare annotation is: true [2020-07-21 13:33:11,671 INFO L268 CegarLoopResult]: For program point L569-1(line 569) no Hoare annotation was computed. [2020-07-21 13:33:11,671 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteFINAL(lines 563 573) no Hoare annotation was computed. [2020-07-21 13:33:11,671 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteEXIT(lines 563 573) no Hoare annotation was computed. [2020-07-21 13:33:11,671 INFO L268 CegarLoopResult]: For program point stub_driver_initEXIT(lines 35 48) no Hoare annotation was computed. [2020-07-21 13:33:11,672 INFO L264 CegarLoopResult]: At program point stub_driver_initENTRY(lines 35 48) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= |old(~pended~0)| 0)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0) (<= ~pended~0 0)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-21 13:33:11,672 INFO L268 CegarLoopResult]: For program point stub_driver_initFINAL(lines 35 48) no Hoare annotation was computed. [2020-07-21 13:33:11,672 INFO L268 CegarLoopResult]: For program point _BLAST_initFINAL(lines 49 70) no Hoare annotation was computed. [2020-07-21 13:33:11,672 INFO L264 CegarLoopResult]: At program point _BLAST_initENTRY(lines 49 70) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (= ~SKIP1~0 ~s~0)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,673 INFO L268 CegarLoopResult]: For program point _BLAST_initEXIT(lines 49 70) no Hoare annotation was computed. [2020-07-21 13:33:11,673 INFO L271 CegarLoopResult]: At program point errorFnENTRY(lines 575 582) the Hoare annotation is: true [2020-07-21 13:33:11,673 INFO L268 CegarLoopResult]: For program point errorFnFINAL(lines 575 582) no Hoare annotation was computed. [2020-07-21 13:33:11,673 INFO L268 CegarLoopResult]: For program point errorFnEXIT(lines 575 582) no Hoare annotation was computed. [2020-07-21 13:33:11,673 INFO L268 CegarLoopResult]: For program point errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION(line 579) no Hoare annotation was computed. [2020-07-21 13:33:11,674 INFO L264 CegarLoopResult]: At program point L382(lines 375 415) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (<= ~pended~0 0) (<= ~MPR3~0 6)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,674 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 286 420) no Hoare annotation was computed. [2020-07-21 13:33:11,674 INFO L268 CegarLoopResult]: For program point L407(lines 407 409) no Hoare annotation was computed. [2020-07-21 13:33:11,674 INFO L264 CegarLoopResult]: At program point L374(lines 367 416) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (<= ~pended~0 0) (<= ~MPR3~0 6)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,674 INFO L268 CegarLoopResult]: For program point L383(lines 367 416) no Hoare annotation was computed. [2020-07-21 13:33:11,674 INFO L268 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2020-07-21 13:33:11,674 INFO L268 CegarLoopResult]: For program point L384(lines 384 413) no Hoare annotation was computed. [2020-07-21 13:33:11,674 INFO L264 CegarLoopResult]: At program point L351(lines 350 365) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (<= 6 ~MPR3~0) (<= ~MPR3~0 6))) [2020-07-21 13:33:11,675 INFO L268 CegarLoopResult]: For program point L376(lines 376 380) no Hoare annotation was computed. [2020-07-21 13:33:11,675 INFO L268 CegarLoopResult]: For program point L368(lines 368 372) no Hoare annotation was computed. [2020-07-21 13:33:11,675 INFO L268 CegarLoopResult]: For program point L335(lines 321 366) no Hoare annotation was computed. [2020-07-21 13:33:11,675 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 286 420) no Hoare annotation was computed. [2020-07-21 13:33:11,675 INFO L268 CegarLoopResult]: For program point L385(lines 385 412) no Hoare annotation was computed. [2020-07-21 13:33:11,675 INFO L264 CegarLoopResult]: At program point L319(line 319) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (<= 0 main_~status~1) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (= ~SKIP1~0 ~s~0))) [2020-07-21 13:33:11,676 INFO L268 CegarLoopResult]: For program point L319-1(lines 295 419) no Hoare annotation was computed. [2020-07-21 13:33:11,676 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 286 420) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (= ~SKIP1~0 ~s~0)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,676 INFO L268 CegarLoopResult]: For program point L402(lines 402 410) no Hoare annotation was computed. [2020-07-21 13:33:11,676 INFO L264 CegarLoopResult]: At program point L394(lines 385 412) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (<= ~pended~0 0) (<= ~MPR3~0 6)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,676 INFO L268 CegarLoopResult]: For program point L386(lines 386 392) no Hoare annotation was computed. [2020-07-21 13:33:11,676 INFO L264 CegarLoopResult]: At program point L353(lines 352 365) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (<= 0 main_~status~1) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,677 INFO L268 CegarLoopResult]: For program point L403(lines 403 405) no Hoare annotation was computed. [2020-07-21 13:33:11,677 INFO L268 CegarLoopResult]: For program point L387(lines 387 389) no Hoare annotation was computed. [2020-07-21 13:33:11,677 INFO L264 CegarLoopResult]: At program point L321(lines 295 419) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (<= ~pended~0 0) (<= ~MPR3~0 6)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,677 INFO L268 CegarLoopResult]: For program point L338-1(lines 337 347) no Hoare annotation was computed. [2020-07-21 13:33:11,677 INFO L268 CegarLoopResult]: For program point L396(lines 396 400) no Hoare annotation was computed. [2020-07-21 13:33:11,677 INFO L268 CegarLoopResult]: For program point L330(lines 330 333) no Hoare annotation was computed. [2020-07-21 13:33:11,677 INFO L264 CegarLoopResult]: At program point L330-2(lines 330 333) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (<= 6 ~MPR3~0) (<= ~MPR3~0 6))) [2020-07-21 13:33:11,678 INFO L264 CegarLoopResult]: At program point L398(line 398) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-21 13:33:11,678 INFO L268 CegarLoopResult]: For program point L357(line 357) no Hoare annotation was computed. [2020-07-21 13:33:11,678 INFO L268 CegarLoopResult]: For program point L477(lines 477 494) no Hoare annotation was computed. [2020-07-21 13:33:11,678 INFO L264 CegarLoopResult]: At program point L444(line 444) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4) (or .cse0 .cse1 .cse2 (= ~s~0 ~NP~0) .cse3 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-21 13:33:11,678 INFO L268 CegarLoopResult]: For program point L444-1(line 444) no Hoare annotation was computed. [2020-07-21 13:33:11,679 INFO L264 CegarLoopResult]: At program point L469(lines 442 497) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (let ((.cse5 (= ~MPR1~0 ~s~0))) (or .cse0 (and .cse5 (= ~setEventCalled~0 1) (= 259 IofCallDriver_~returnVal2~0)) .cse1 .cse2 (and (<= IofCallDriver_~returnVal2~0 0) .cse5) .cse3 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0)))))) [2020-07-21 13:33:11,679 INFO L264 CegarLoopResult]: At program point L457(lines 456 471) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (and (= ~MPR1~0 ~s~0) (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)))) [2020-07-21 13:33:11,679 INFO L268 CegarLoopResult]: For program point L486(lines 486 493) no Hoare annotation was computed. [2020-07-21 13:33:11,679 INFO L268 CegarLoopResult]: For program point L449(lines 449 472) no Hoare annotation was computed. [2020-07-21 13:33:11,680 INFO L268 CegarLoopResult]: For program point L478(lines 478 484) no Hoare annotation was computed. [2020-07-21 13:33:11,680 INFO L264 CegarLoopResult]: At program point L445(line 445) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4) (or .cse0 .cse1 .cse2 .cse3 (and (= ~s~0 ~NP~0) (= ~setEventCalled~0 1)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-21 13:33:11,680 INFO L264 CegarLoopResult]: At program point IofCallDriverENTRY(lines 435 498) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (= ~s~0 ~NP~0) .cse3 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))) (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)))) [2020-07-21 13:33:11,680 INFO L264 CegarLoopResult]: At program point L491(line 491) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4) (or .cse0 .cse1 .cse2 .cse3 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-21 13:33:11,681 INFO L268 CegarLoopResult]: For program point L491-1(lines 473 495) no Hoare annotation was computed. [2020-07-21 13:33:11,681 INFO L268 CegarLoopResult]: For program point L454(lines 454 471) no Hoare annotation was computed. [2020-07-21 13:33:11,681 INFO L264 CegarLoopResult]: At program point L450(lines 449 472) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (or .cse0 .cse1 .cse2 .cse3 (= ~MPR1~0 ~s~0) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-21 13:33:11,681 INFO L268 CegarLoopResult]: For program point IofCallDriverFINAL(lines 435 498) no Hoare annotation was computed. [2020-07-21 13:33:11,681 INFO L268 CegarLoopResult]: For program point IofCallDriverEXIT(lines 435 498) no Hoare annotation was computed. [2020-07-21 13:33:11,681 INFO L264 CegarLoopResult]: At program point L455(lines 454 471) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~SKIP1~0 |old(~s~0)|)) .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (or .cse0 .cse1 .cse2 .cse3 (= ~MPR1~0 ~s~0) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-21 13:33:11,681 INFO L268 CegarLoopResult]: For program point L443(lines 443 446) no Hoare annotation was computed. [2020-07-21 13:33:11,682 INFO L268 CegarLoopResult]: For program point L443-1(lines 443 446) no Hoare annotation was computed. [2020-07-21 13:33:11,682 INFO L264 CegarLoopResult]: At program point L429(line 429) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-21 13:33:11,682 INFO L268 CegarLoopResult]: For program point L429-1(lines 421 434) no Hoare annotation was computed. [2020-07-21 13:33:11,682 INFO L264 CegarLoopResult]: At program point stubMoreProcessingRequiredENTRY(lines 421 434) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (= ~s~0 ~NP~0) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-21 13:33:11,682 INFO L268 CegarLoopResult]: For program point stubMoreProcessingRequiredEXIT(lines 421 434) no Hoare annotation was computed. [2020-07-21 13:33:11,682 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:33:11,683 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:33:11,683 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:33:11,683 INFO L264 CegarLoopResult]: At program point L541(line 541) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not (<= ~NP~0 1))) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7))) [2020-07-21 13:33:11,683 INFO L268 CegarLoopResult]: For program point L539(lines 539 543) no Hoare annotation was computed. [2020-07-21 13:33:11,683 INFO L268 CegarLoopResult]: For program point L539-1(lines 526 545) no Hoare annotation was computed. [2020-07-21 13:33:11,683 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectEXIT(lines 521 562) no Hoare annotation was computed. [2020-07-21 13:33:11,683 INFO L268 CegarLoopResult]: For program point L527(lines 527 532) no Hoare annotation was computed. [2020-07-21 13:33:11,683 INFO L268 CegarLoopResult]: For program point L548(lines 548 560) no Hoare annotation was computed. [2020-07-21 13:33:11,684 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectFINAL(lines 521 562) no Hoare annotation was computed. [2020-07-21 13:33:11,684 INFO L264 CegarLoopResult]: At program point L534(lines 526 545) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not (<= ~NP~0 1))) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 (and (<= ~s~0 ~NP~0) (<= |old(~s~0)| ~s~0)) .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2020-07-21 13:33:11,684 INFO L268 CegarLoopResult]: For program point L526(lines 526 545) no Hoare annotation was computed. [2020-07-21 13:33:11,684 INFO L264 CegarLoopResult]: At program point L551(lines 550 560) the Hoare annotation is: (let ((.cse9 (<= ~NP~0 1))) (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not .cse9)) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (and .cse9 (= ~s~0 ~NP~0))) (.cse8 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7 .cse8) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)))) [2020-07-21 13:33:11,684 INFO L264 CegarLoopResult]: At program point KeWaitForSingleObjectENTRY(lines 521 562) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not (<= ~NP~0 1))) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 .cse2 (= ~s~0 ~NP~0) .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 (and (= ~MPR3~0 ~s~0) (= ~setEventCalled~0 1)) .cse3 .cse4 .cse5 .cse6 .cse7))) [2020-07-21 13:33:11,685 INFO L264 CegarLoopResult]: At program point L549(lines 548 560) the Hoare annotation is: (let ((.cse9 (<= ~NP~0 1))) (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not .cse9)) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (and .cse9 (= ~s~0 ~NP~0))) (.cse8 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7 .cse8) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)))) [2020-07-21 13:33:11,685 INFO L264 CegarLoopResult]: At program point L507(line 507) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-21 13:33:11,685 INFO L268 CegarLoopResult]: For program point L507-1(lines 499 512) no Hoare annotation was computed. [2020-07-21 13:33:11,685 INFO L264 CegarLoopResult]: At program point IofCompleteRequestENTRY(lines 499 512) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (= ~s~0 ~NP~0) (not (<= 7 ~IPC~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-21 13:33:11,686 INFO L268 CegarLoopResult]: For program point L503(lines 503 509) no Hoare annotation was computed. [2020-07-21 13:33:11,686 INFO L268 CegarLoopResult]: For program point IofCompleteRequestEXIT(lines 499 512) no Hoare annotation was computed. [2020-07-21 13:33:11,686 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:33:11,686 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (= ~SKIP1~0 ~s~0)) [2020-07-21 13:33:11,686 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:33:11,686 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:33:11,687 INFO L264 CegarLoopResult]: At program point L192(lines 192 194) the Hoare annotation is: (let ((.cse0 (<= 1 ~compRegistered~0))) (or (not (<= ~MPR3~0 6)) (and (<= 259 KbFilter_PnP_~status~0) (= ~MPR3~0 ~s~0) (= ~setEventCalled~0 1) .cse0) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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))) [2020-07-21 13:33:11,687 INFO L268 CegarLoopResult]: For program point L192-1(lines 192 194) no Hoare annotation was computed. [2020-07-21 13:33:11,687 INFO L268 CegarLoopResult]: For program point L151(lines 151 265) no Hoare annotation was computed. [2020-07-21 13:33:11,687 INFO L268 CegarLoopResult]: For program point L118(lines 118 276) no Hoare annotation was computed. [2020-07-21 13:33:11,687 INFO L264 CegarLoopResult]: At program point L209(line 209) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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))) [2020-07-21 13:33:11,688 INFO L264 CegarLoopResult]: At program point L176(line 176) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-21 13:33:11,688 INFO L264 CegarLoopResult]: At program point L234(line 234) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-21 13:33:11,688 INFO L268 CegarLoopResult]: For program point L234-1(lines 230 236) no Hoare annotation was computed. [2020-07-21 13:33:11,688 INFO L268 CegarLoopResult]: For program point L160(lines 160 262) no Hoare annotation was computed. [2020-07-21 13:33:11,688 INFO L268 CegarLoopResult]: For program point L127(lines 127 273) no Hoare annotation was computed. [2020-07-21 13:33:11,688 INFO L264 CegarLoopResult]: At program point L218(line 218) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-21 13:33:11,689 INFO L264 CegarLoopResult]: At program point L185(lines 185 186) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not (= ~NP~0 |old(~s~0)|))) (.cse6 (not (<= ~NP~0 1))) (.cse7 (not (<= 6 ~MPR3~0))) (.cse8 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (and (= ~s~0 ~NP~0) (<= 1 ~compRegistered~0))))) [2020-07-21 13:33:11,689 INFO L268 CegarLoopResult]: For program point L218-1(lines 214 220) no Hoare annotation was computed. [2020-07-21 13:33:11,689 INFO L268 CegarLoopResult]: For program point L185-1(lines 185 186) no Hoare annotation was computed. [2020-07-21 13:33:11,689 INFO L268 CegarLoopResult]: For program point L169(lines 169 181) no Hoare annotation was computed. [2020-07-21 13:33:11,689 INFO L268 CegarLoopResult]: For program point L136(lines 136 270) no Hoare annotation was computed. [2020-07-21 13:33:11,690 INFO L268 CegarLoopResult]: For program point L103(lines 103 281) no Hoare annotation was computed. [2020-07-21 13:33:11,690 INFO L271 CegarLoopResult]: At program point L260(lines 164 261) the Hoare annotation is: true [2020-07-21 13:33:11,690 INFO L268 CegarLoopResult]: For program point KbFilter_PnPEXIT(lines 73 285) no Hoare annotation was computed. [2020-07-21 13:33:11,690 INFO L268 CegarLoopResult]: For program point L145(lines 145 267) no Hoare annotation was computed. [2020-07-21 13:33:11,690 INFO L268 CegarLoopResult]: For program point L112(lines 112 278) no Hoare annotation was computed. [2020-07-21 13:33:11,691 INFO L264 CegarLoopResult]: At program point L104(lines 103 281) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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)|))) [2020-07-21 13:33:11,691 INFO L268 CegarLoopResult]: For program point L154(lines 154 264) no Hoare annotation was computed. [2020-07-21 13:33:11,691 INFO L268 CegarLoopResult]: For program point L121(lines 121 275) no Hoare annotation was computed. [2020-07-21 13:33:11,691 INFO L264 CegarLoopResult]: At program point KbFilter_PnPENTRY(lines 73 285) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not (= ~NP~0 |old(~s~0)|))) (.cse6 (not (<= ~NP~0 1))) (.cse7 (not (<= 6 ~MPR3~0))) (.cse8 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) .cse5 .cse6 .cse7 .cse8))) [2020-07-21 13:33:11,691 INFO L264 CegarLoopResult]: At program point L171(line 171) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-21 13:33:11,692 INFO L268 CegarLoopResult]: For program point KbFilter_PnPFINAL(lines 73 285) no Hoare annotation was computed. [2020-07-21 13:33:11,692 INFO L264 CegarLoopResult]: At program point L163(lines 109 279) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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)|))) [2020-07-21 13:33:11,692 INFO L268 CegarLoopResult]: For program point L130(lines 130 272) no Hoare annotation was computed. [2020-07-21 13:33:11,692 INFO L268 CegarLoopResult]: For program point L139(lines 139 269) no Hoare annotation was computed. [2020-07-21 13:33:11,692 INFO L268 CegarLoopResult]: For program point L106(lines 106 280) no Hoare annotation was computed. [2020-07-21 13:33:11,692 INFO L268 CegarLoopResult]: For program point L230(lines 230 236) no Hoare annotation was computed. [2020-07-21 13:33:11,693 INFO L264 CegarLoopResult]: At program point L255(lines 255 256) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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)|))) [2020-07-21 13:33:11,693 INFO L268 CegarLoopResult]: For program point L255-1(lines 255 256) no Hoare annotation was computed. [2020-07-21 13:33:11,693 INFO L268 CegarLoopResult]: For program point L214(lines 214 220) no Hoare annotation was computed. [2020-07-21 13:33:11,693 INFO L268 CegarLoopResult]: For program point L148(lines 148 266) no Hoare annotation was computed. [2020-07-21 13:33:11,693 INFO L268 CegarLoopResult]: For program point L115(lines 115 277) no Hoare annotation was computed. [2020-07-21 13:33:11,693 INFO L264 CegarLoopResult]: At program point L107(lines 106 280) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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)|))) [2020-07-21 13:33:11,694 INFO L268 CegarLoopResult]: For program point L198(lines 198 204) no Hoare annotation was computed. [2020-07-21 13:33:11,694 INFO L268 CegarLoopResult]: For program point L190(lines 190 196) no Hoare annotation was computed. [2020-07-21 13:33:11,694 INFO L268 CegarLoopResult]: For program point L157(lines 157 263) no Hoare annotation was computed. [2020-07-21 13:33:11,694 INFO L268 CegarLoopResult]: For program point L124(lines 124 274) no Hoare annotation was computed. [2020-07-21 13:33:11,694 INFO L268 CegarLoopResult]: For program point L190-2(lines 164 259) no Hoare annotation was computed. [2020-07-21 13:33:11,694 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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)|))) [2020-07-21 13:33:11,694 INFO L268 CegarLoopResult]: For program point L240-1(line 240) no Hoare annotation was computed. [2020-07-21 13:33:11,695 INFO L268 CegarLoopResult]: For program point L174(lines 174 180) no Hoare annotation was computed. [2020-07-21 13:33:11,695 INFO L268 CegarLoopResult]: For program point L174-1(lines 169 181) no Hoare annotation was computed. [2020-07-21 13:33:11,695 INFO L268 CegarLoopResult]: For program point L199(lines 199 203) no Hoare annotation was computed. [2020-07-21 13:33:11,695 INFO L268 CegarLoopResult]: For program point L133(lines 133 271) no Hoare annotation was computed. [2020-07-21 13:33:11,695 INFO L268 CegarLoopResult]: For program point L100(lines 100 282) no Hoare annotation was computed. [2020-07-21 13:33:11,695 INFO L264 CegarLoopResult]: At program point L224(lines 224 225) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (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)|))) [2020-07-21 13:33:11,696 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 225) no Hoare annotation was computed. [2020-07-21 13:33:11,696 INFO L264 CegarLoopResult]: At program point L249(line 249) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= ~pended~0 0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-21 13:33:11,696 INFO L268 CegarLoopResult]: For program point L249-1(lines 245 251) no Hoare annotation was computed. [2020-07-21 13:33:11,696 INFO L268 CegarLoopResult]: For program point L142(lines 142 268) no Hoare annotation was computed. [2020-07-21 13:33:11,696 INFO L268 CegarLoopResult]: For program point L109(lines 109 279) no Hoare annotation was computed. [2020-07-21 13:33:11,696 INFO L264 CegarLoopResult]: At program point L101(lines 100 282) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 7 ~IPC~0))) (.cse4 (not (<= 5 ~MPR1~0))) (.cse5 (not (= ~NP~0 |old(~s~0)|))) (.cse6 (not (<= ~NP~0 1))) (.cse7 (not (<= 6 ~MPR3~0))) (.cse8 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) .cse5 .cse6 .cse7 .cse8))) [2020-07-21 13:33:11,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:33:11 BoogieIcfgContainer [2020-07-21 13:33:11,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:33:11,753 INFO L168 Benchmark]: Toolchain (without parser) took 18259.62 ms. Allocated memory was 135.8 MB in the beginning and 362.3 MB in the end (delta: 226.5 MB). Free memory was 100.6 MB in the beginning and 237.1 MB in the end (delta: -136.5 MB). Peak memory consumption was 243.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:33:11,755 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 135.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 13:33:11,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.40 ms. Allocated memory is still 135.8 MB. Free memory was 100.1 MB in the beginning and 84.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:33:11,756 INFO L168 Benchmark]: Boogie Preprocessor took 228.15 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 84.5 MB in the beginning and 176.9 MB in the end (delta: -92.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:33:11,757 INFO L168 Benchmark]: RCFGBuilder took 1209.92 ms. Allocated memory is still 200.8 MB. Free memory was 176.9 MB in the beginning and 131.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:33:11,758 INFO L168 Benchmark]: TraceAbstraction took 16218.79 ms. Allocated memory was 200.8 MB in the beginning and 362.3 MB in the end (delta: 161.5 MB). Free memory was 131.5 MB in the beginning and 237.1 MB in the end (delta: -105.5 MB). Peak memory consumption was 209.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:33:11,761 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 135.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 592.40 ms. Allocated memory is still 135.8 MB. Free memory was 100.1 MB in the beginning and 84.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 228.15 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 84.5 MB in the beginning and 176.9 MB in the end (delta: -92.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1209.92 ms. Allocated memory is still 200.8 MB. Free memory was 176.9 MB in the beginning and 131.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16218.79 ms. Allocated memory was 200.8 MB in the beginning and 362.3 MB in the end (delta: 161.5 MB). Free memory was 131.5 MB in the beginning and 237.1 MB in the end (delta: -105.5 MB). Peak memory consumption was 209.0 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(pended) <= 0) || !(\old(s) == \old(NP))) || ((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && pended <= 0) && MPR3 <= 6)) || !(\old(SKIP1) == \old(s))) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || ((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && pended <= 0) && MPR3 <= 6)) || !(\old(SKIP1) == \old(s))) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || 0 <= status) || !(\old(SKIP1) == \old(s))) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || MPR1 == s) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: (((((((((!(MPR3 <= 6) || (s <= NP && \old(s) <= s)) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) && (((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered))) || !(\old(myStatus) + 1073741637 <= 0)) || myStatus + 1073741637 <= 0) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered))) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (MPR1 == s && setEventCalled == 1)) || !(1 <= compRegistered)) && (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) && ((((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && ((((((((((!(MPR3 <= 6) || ((MPR1 == s && setEventCalled == 1) && 259 == returnVal2)) || !(3 <= SKIP1)) || !(pended <= 0)) || (returnVal2 <= 0 && MPR1 == s)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) && ((((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || !(NP <= 1)) || !(6 <= MPR3)) || (NP <= 1 && s == NP)) || !(1 <= compRegistered)) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || ((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && pended <= 0) && MPR3 <= 6)) || !(\old(SKIP1) == \old(s))) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(pended <= 0)) || !(7 <= IPC)) || MPR1 == s) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3))) || (((((((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && s == NP) && 0 <= status) && 5 <= MPR1) && 0 == compRegistered) && pended <= 0) && 6 <= MPR3) && MPR3 <= 6) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || ((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && pended <= 0) && MPR3 <= 6)) || !(\old(SKIP1) == \old(s))) || !(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: 10.0s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2266 SDtfs, 1170 SDslu, 2017 SDs, 0 SdLazy, 608 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 834 GetRequests, 795 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 114 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 274 PreInvPairs, 334 NumberOfFragments, 2546 HoareAnnotationTreeSize, 274 FomulaSimplifications, 542 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 53 FomulaSimplificationsInter, 3615 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 846 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 120296 SizeOfPredicates, 21 NumberOfNonLiveVariables, 7497 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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...