/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:20:28,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:20:28,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:20:28,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:20:28,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:20:28,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:20:28,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:20:28,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:20:28,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:20:28,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:20:28,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:20:28,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:20:28,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:20:28,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:20:28,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:20:28,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:20:28,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:20:28,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:20:28,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:20:28,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:20:28,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:20:28,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:20:28,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:20:28,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:20:28,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 11:20:28,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 11:20:28,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 11:20:28,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 11:20:28,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 11:20:28,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-20 11:20:28,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:20:28,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:20:28,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:20:28,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:20:28,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:20:28,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:20:28,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:20:28,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:20:28,482 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:20:28,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:20:28,483 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:20:28,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:20:28,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:20:28,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:20:28,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:20:28,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:20:28,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:20:28,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:20:28,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:20:28,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:20:28,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:20:28,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:20:28,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:20:28,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:20:28,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:20:28,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:20:28,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:20:28,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:20:28,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:20:28,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:20:28,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:28,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:20:28,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:20:28,487 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 -> NOT_INCREMENTALLY [2020-07-20 11:20:28,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:20:28,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:20:28,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:20:28,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:20:28,888 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:20:28,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-20 11:20:28,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88afd6aa2/25b9efe8a7a748679b755333c4f97d0d/FLAGeeeda4961 [2020-07-20 11:20:29,628 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:20:29,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-20 11:20:29,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88afd6aa2/25b9efe8a7a748679b755333c4f97d0d/FLAGeeeda4961 [2020-07-20 11:20:29,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88afd6aa2/25b9efe8a7a748679b755333c4f97d0d [2020-07-20 11:20:29,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:20:29,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:20:29,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:20:29,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:20:29,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:20:29,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:20:29" (1/1) ... [2020-07-20 11:20:29,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748a131b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:29, skipping insertion in model container [2020-07-20 11:20:29,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:20:29" (1/1) ... [2020-07-20 11:20:29,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:20:30,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:20:30,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:20:30,378 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:20:30,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:20:30,610 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:20:30,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30 WrapperNode [2020-07-20 11:20:30,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:20:30,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:20:30,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:20:30,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:20:30,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... [2020-07-20 11:20:30,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:20:30,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:20:30,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:20:30,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:20:30,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:20:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:20:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:20:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-20 11:20:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-20 11:20:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-20 11:20:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:20:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-20 11:20:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-20 11:20:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-20 11:20:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-20 11:20:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-20 11:20:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-20 11:20:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-20 11:20:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:20:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 11:20:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:20:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-20 11:20:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-20 11:20:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-20 11:20:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-20 11:20:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-20 11:20:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-20 11:20:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-20 11:20:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-20 11:20:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-20 11:20:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-20 11:20:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:20:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-20 11:20:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:20:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:20:31,179 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 11:20:31,324 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-07-20 11:20:31,324 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-07-20 11:20:31,327 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 11:20:31,384 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-07-20 11:20:31,384 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-07-20 11:20:31,401 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 11:20:31,464 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-20 11:20:31,464 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-20 11:20:31,489 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 11:20:31,692 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-20 11:20:31,692 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-20 11:20:31,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:20:31,717 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 11:20:31,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:20:31 BoogieIcfgContainer [2020-07-20 11:20:31,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:20:31,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:20:31,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:20:31,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:20:31,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:20:29" (1/3) ... [2020-07-20 11:20:31,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aaa4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:20:31, skipping insertion in model container [2020-07-20 11:20:31,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:20:30" (2/3) ... [2020-07-20 11:20:31,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aaa4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:20:31, skipping insertion in model container [2020-07-20 11:20:31,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:20:31" (3/3) ... [2020-07-20 11:20:31,743 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-07-20 11:20:31,760 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:20:31,774 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:20:31,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:20:31,842 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:20:31,843 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:20:31,843 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:20:31,843 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:20:31,844 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:20:31,844 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:20:31,844 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:20:31,844 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:20:31,890 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-20 11:20:31,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-20 11:20:31,903 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:31,904 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] [2020-07-20 11:20:31,905 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:31,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1530382191, now seen corresponding path program 1 times [2020-07-20 11:20:31,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:31,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107587584] [2020-07-20 11:20:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:32,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 11:20:32,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:32,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:32,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107587584] [2020-07-20 11:20:32,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:32,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:32,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128412429] [2020-07-20 11:20:32,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:32,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:32,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:32,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:32,219 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-20 11:20:32,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:32,376 INFO L93 Difference]: Finished difference Result 286 states and 438 transitions. [2020-07-20 11:20:32,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:32,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-07-20 11:20:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:32,425 INFO L225 Difference]: With dead ends: 286 [2020-07-20 11:20:32,425 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 11:20:32,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:32,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 11:20:32,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-20 11:20:32,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-20 11:20:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2020-07-20 11:20:32,615 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 20 [2020-07-20 11:20:32,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:32,615 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2020-07-20 11:20:32,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2020-07-20 11:20:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 11:20:32,619 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:32,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:32,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:32,835 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:32,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:32,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1141575010, now seen corresponding path program 1 times [2020-07-20 11:20:32,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:32,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890190120] [2020-07-20 11:20:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:32,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:20:32,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:33,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:33,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890190120] [2020-07-20 11:20:33,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:33,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:33,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080048681] [2020-07-20 11:20:33,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:33,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:33,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:33,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:33,023 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 3 states. [2020-07-20 11:20:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:33,209 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions. [2020-07-20 11:20:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:33,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-20 11:20:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:33,215 INFO L225 Difference]: With dead ends: 258 [2020-07-20 11:20:33,215 INFO L226 Difference]: Without dead ends: 202 [2020-07-20 11:20:33,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-20 11:20:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2020-07-20 11:20:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-07-20 11:20:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 252 transitions. [2020-07-20 11:20:33,251 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 252 transitions. Word has length 26 [2020-07-20 11:20:33,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:33,252 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 252 transitions. [2020-07-20 11:20:33,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 252 transitions. [2020-07-20 11:20:33,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-20 11:20:33,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:33,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:33,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:33,470 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:33,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:33,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1029098174, now seen corresponding path program 1 times [2020-07-20 11:20:33,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:33,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344902229] [2020-07-20 11:20:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:33,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:20:33,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:33,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:33,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:33,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344902229] [2020-07-20 11:20:33,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:33,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:33,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722731550] [2020-07-20 11:20:33,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:33,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:33,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:33,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:33,661 INFO L87 Difference]: Start difference. First operand 189 states and 252 transitions. Second operand 3 states. [2020-07-20 11:20:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:33,759 INFO L93 Difference]: Finished difference Result 310 states and 406 transitions. [2020-07-20 11:20:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:33,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-20 11:20:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:33,770 INFO L225 Difference]: With dead ends: 310 [2020-07-20 11:20:33,771 INFO L226 Difference]: Without dead ends: 248 [2020-07-20 11:20:33,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:33,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-20 11:20:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2020-07-20 11:20:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 11:20:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2020-07-20 11:20:33,857 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 27 [2020-07-20 11:20:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:33,858 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2020-07-20 11:20:33,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2020-07-20 11:20:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 11:20:33,864 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:33,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:34,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:34,066 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:34,068 INFO L82 PathProgramCache]: Analyzing trace with hash 742933031, now seen corresponding path program 1 times [2020-07-20 11:20:34,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:34,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685398800] [2020-07-20 11:20:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:34,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:20:34,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:34,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:34,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685398800] [2020-07-20 11:20:34,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:34,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:34,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84478171] [2020-07-20 11:20:34,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:34,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:34,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:34,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:34,280 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand 3 states. [2020-07-20 11:20:34,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:34,367 INFO L93 Difference]: Finished difference Result 214 states and 284 transitions. [2020-07-20 11:20:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:34,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-20 11:20:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:34,371 INFO L225 Difference]: With dead ends: 214 [2020-07-20 11:20:34,387 INFO L226 Difference]: Without dead ends: 211 [2020-07-20 11:20:34,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:34,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-20 11:20:34,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-20 11:20:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 11:20:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2020-07-20 11:20:34,407 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 37 [2020-07-20 11:20:34,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:34,408 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2020-07-20 11:20:34,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2020-07-20 11:20:34,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 11:20:34,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:34,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:34,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:34,626 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:34,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:34,627 INFO L82 PathProgramCache]: Analyzing trace with hash 324263340, now seen corresponding path program 1 times [2020-07-20 11:20:34,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:34,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30454075] [2020-07-20 11:20:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:34,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 11:20:34,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:34,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:34,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:34,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30454075] [2020-07-20 11:20:34,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:34,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:34,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741790802] [2020-07-20 11:20:34,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:34,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:34,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:34,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:34,795 INFO L87 Difference]: Start difference. First operand 211 states and 281 transitions. Second operand 3 states. [2020-07-20 11:20:34,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:34,827 INFO L93 Difference]: Finished difference Result 268 states and 349 transitions. [2020-07-20 11:20:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:34,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-20 11:20:34,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:34,831 INFO L225 Difference]: With dead ends: 268 [2020-07-20 11:20:34,831 INFO L226 Difference]: Without dead ends: 202 [2020-07-20 11:20:34,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-20 11:20:34,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 184. [2020-07-20 11:20:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-20 11:20:34,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 243 transitions. [2020-07-20 11:20:34,847 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 243 transitions. Word has length 45 [2020-07-20 11:20:34,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:34,848 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 243 transitions. [2020-07-20 11:20:34,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 243 transitions. [2020-07-20 11:20:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 11:20:34,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:34,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:35,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:35,066 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:35,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:35,066 INFO L82 PathProgramCache]: Analyzing trace with hash 726030577, now seen corresponding path program 1 times [2020-07-20 11:20:35,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:35,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207263713] [2020-07-20 11:20:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:35,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 11:20:35,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:35,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:35,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207263713] [2020-07-20 11:20:35,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:35,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:35,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259258818] [2020-07-20 11:20:35,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:35,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:35,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:35,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:35,240 INFO L87 Difference]: Start difference. First operand 184 states and 243 transitions. Second operand 3 states. [2020-07-20 11:20:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:35,319 INFO L93 Difference]: Finished difference Result 243 states and 318 transitions. [2020-07-20 11:20:35,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:35,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 11:20:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:35,324 INFO L225 Difference]: With dead ends: 243 [2020-07-20 11:20:35,324 INFO L226 Difference]: Without dead ends: 182 [2020-07-20 11:20:35,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:35,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-20 11:20:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-07-20 11:20:35,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-07-20 11:20:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 239 transitions. [2020-07-20 11:20:35,354 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 239 transitions. Word has length 51 [2020-07-20 11:20:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:35,355 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 239 transitions. [2020-07-20 11:20:35,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 239 transitions. [2020-07-20 11:20:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-20 11:20:35,369 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:35,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:35,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:35,585 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:35,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:35,585 INFO L82 PathProgramCache]: Analyzing trace with hash 572107035, now seen corresponding path program 1 times [2020-07-20 11:20:35,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:35,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079786205] [2020-07-20 11:20:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:35,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 11:20:35,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:35,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:35,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:35,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079786205] [2020-07-20 11:20:35,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:35,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:35,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991423055] [2020-07-20 11:20:35,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:35,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:35,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:35,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:35,775 INFO L87 Difference]: Start difference. First operand 182 states and 239 transitions. Second operand 3 states. [2020-07-20 11:20:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:35,808 INFO L93 Difference]: Finished difference Result 191 states and 250 transitions. [2020-07-20 11:20:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:35,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-07-20 11:20:35,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:35,810 INFO L225 Difference]: With dead ends: 191 [2020-07-20 11:20:35,811 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 11:20:35,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 11:20:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-20 11:20:35,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 11:20:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2020-07-20 11:20:35,821 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 50 [2020-07-20 11:20:35,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:35,822 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2020-07-20 11:20:35,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:35,822 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2020-07-20 11:20:35,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 11:20:35,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:35,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:36,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:36,031 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:36,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:36,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1516710605, now seen corresponding path program 1 times [2020-07-20 11:20:36,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:36,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020133971] [2020-07-20 11:20:36,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:36,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 11:20:36,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:36,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:36,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020133971] [2020-07-20 11:20:36,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:36,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:36,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809358925] [2020-07-20 11:20:36,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:36,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:36,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:36,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:36,230 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand 3 states. [2020-07-20 11:20:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:36,280 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-07-20 11:20:36,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:36,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-07-20 11:20:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:36,283 INFO L225 Difference]: With dead ends: 107 [2020-07-20 11:20:36,283 INFO L226 Difference]: Without dead ends: 102 [2020-07-20 11:20:36,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:36,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-20 11:20:36,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2020-07-20 11:20:36,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-07-20 11:20:36,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2020-07-20 11:20:36,293 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 59 [2020-07-20 11:20:36,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:36,294 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2020-07-20 11:20:36,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2020-07-20 11:20:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 11:20:36,295 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:36,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:36,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:36,511 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:36,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:36,512 INFO L82 PathProgramCache]: Analyzing trace with hash -367309916, now seen corresponding path program 1 times [2020-07-20 11:20:36,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:36,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720356074] [2020-07-20 11:20:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:36,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:20:36,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:36,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:36,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:36,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720356074] [2020-07-20 11:20:36,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:36,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 11:20:36,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294542217] [2020-07-20 11:20:36,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:20:36,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:36,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:20:36,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 11:20:36,716 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand 4 states. [2020-07-20 11:20:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:36,794 INFO L93 Difference]: Finished difference Result 123 states and 138 transitions. [2020-07-20 11:20:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:20:36,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-07-20 11:20:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:36,797 INFO L225 Difference]: With dead ends: 123 [2020-07-20 11:20:36,797 INFO L226 Difference]: Without dead ends: 93 [2020-07-20 11:20:36,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 11:20:36,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-20 11:20:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-07-20 11:20:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-07-20 11:20:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2020-07-20 11:20:36,806 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 59 [2020-07-20 11:20:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:36,807 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2020-07-20 11:20:36,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:20:36,807 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2020-07-20 11:20:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 11:20:36,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:36,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:37,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:37,024 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:37,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:37,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1135324297, now seen corresponding path program 1 times [2020-07-20 11:20:37,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:37,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274947206] [2020-07-20 11:20:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:37,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 11:20:37,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:37,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:37,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274947206] [2020-07-20 11:20:37,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:37,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:37,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800312942] [2020-07-20 11:20:37,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:37,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:37,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:37,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:37,205 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand 3 states. [2020-07-20 11:20:37,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:37,228 INFO L93 Difference]: Finished difference Result 129 states and 144 transitions. [2020-07-20 11:20:37,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:37,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 11:20:37,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:37,230 INFO L225 Difference]: With dead ends: 129 [2020-07-20 11:20:37,231 INFO L226 Difference]: Without dead ends: 99 [2020-07-20 11:20:37,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:37,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-07-20 11:20:37,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2020-07-20 11:20:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-20 11:20:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2020-07-20 11:20:37,241 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 61 [2020-07-20 11:20:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:37,242 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2020-07-20 11:20:37,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2020-07-20 11:20:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 11:20:37,243 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:37,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:37,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:37,459 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:37,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:37,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1685130741, now seen corresponding path program 1 times [2020-07-20 11:20:37,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:37,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663691233] [2020-07-20 11:20:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:37,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:20:37,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:37,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:37,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663691233] [2020-07-20 11:20:37,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:37,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 11:20:37,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804352777] [2020-07-20 11:20:37,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:20:37,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:20:37,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:20:37,680 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 6 states. [2020-07-20 11:20:37,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:37,773 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2020-07-20 11:20:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:20:37,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 11:20:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:37,779 INFO L225 Difference]: With dead ends: 110 [2020-07-20 11:20:37,779 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 11:20:37,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:20:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 11:20:37,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-20 11:20:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 11:20:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2020-07-20 11:20:37,791 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 62 [2020-07-20 11:20:37,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:37,794 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2020-07-20 11:20:37,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:20:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2020-07-20 11:20:37,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 11:20:37,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:37,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:38,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:38,010 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:38,011 INFO L82 PathProgramCache]: Analyzing trace with hash 475938380, now seen corresponding path program 1 times [2020-07-20 11:20:38,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:38,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984206042] [2020-07-20 11:20:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:38,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 11:20:38,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:38,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:38,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984206042] [2020-07-20 11:20:38,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:38,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 11:20:38,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799416189] [2020-07-20 11:20:38,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:20:38,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:38,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:20:38,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:20:38,241 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand 6 states. [2020-07-20 11:20:38,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:38,292 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2020-07-20 11:20:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:20:38,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 11:20:38,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:38,295 INFO L225 Difference]: With dead ends: 98 [2020-07-20 11:20:38,295 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 11:20:38,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:20:38,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 11:20:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-20 11:20:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 11:20:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2020-07-20 11:20:38,307 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 62 [2020-07-20 11:20:38,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:38,308 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2020-07-20 11:20:38,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:20:38,308 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2020-07-20 11:20:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 11:20:38,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:38,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:38,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:38,522 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:38,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:38,523 INFO L82 PathProgramCache]: Analyzing trace with hash 359859562, now seen corresponding path program 1 times [2020-07-20 11:20:38,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:38,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166134130] [2020-07-20 11:20:38,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:38,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:20:38,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:38,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:38,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166134130] [2020-07-20 11:20:38,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:38,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:38,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085870702] [2020-07-20 11:20:38,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:38,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:38,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:38,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:38,722 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand 3 states. [2020-07-20 11:20:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:38,752 INFO L93 Difference]: Finished difference Result 107 states and 114 transitions. [2020-07-20 11:20:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:38,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 11:20:38,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:38,754 INFO L225 Difference]: With dead ends: 107 [2020-07-20 11:20:38,755 INFO L226 Difference]: Without dead ends: 76 [2020-07-20 11:20:38,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-20 11:20:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-20 11:20:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-20 11:20:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-07-20 11:20:38,765 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 63 [2020-07-20 11:20:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:38,766 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-07-20 11:20:38,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-20 11:20:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 11:20:38,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:38,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:38,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:38,983 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:38,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:38,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1228040100, now seen corresponding path program 1 times [2020-07-20 11:20:38,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:38,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542638956] [2020-07-20 11:20:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:39,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:20:39,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:39,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:39,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542638956] [2020-07-20 11:20:39,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:39,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:20:39,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116804405] [2020-07-20 11:20:39,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:20:39,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:39,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:20:39,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:39,197 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 3 states. [2020-07-20 11:20:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:39,224 INFO L93 Difference]: Finished difference Result 141 states and 146 transitions. [2020-07-20 11:20:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:20:39,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 11:20:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:39,226 INFO L225 Difference]: With dead ends: 141 [2020-07-20 11:20:39,226 INFO L226 Difference]: Without dead ends: 134 [2020-07-20 11:20:39,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:20:39,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-20 11:20:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 133. [2020-07-20 11:20:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 11:20:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 138 transitions. [2020-07-20 11:20:39,240 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 138 transitions. Word has length 63 [2020-07-20 11:20:39,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:39,240 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 138 transitions. [2020-07-20 11:20:39,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:20:39,241 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 138 transitions. [2020-07-20 11:20:39,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 11:20:39,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:39,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:39,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:39,457 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:39,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:39,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1291919834, now seen corresponding path program 1 times [2020-07-20 11:20:39,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:39,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035438311] [2020-07-20 11:20:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:39,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:20:39,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:39,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:39,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035438311] [2020-07-20 11:20:39,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:39,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 11:20:39,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822818054] [2020-07-20 11:20:39,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:20:39,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:39,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:20:39,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:20:39,633 INFO L87 Difference]: Start difference. First operand 133 states and 138 transitions. Second operand 6 states. [2020-07-20 11:20:39,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:39,668 INFO L93 Difference]: Finished difference Result 144 states and 149 transitions. [2020-07-20 11:20:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:20:39,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 11:20:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:39,671 INFO L225 Difference]: With dead ends: 144 [2020-07-20 11:20:39,671 INFO L226 Difference]: Without dead ends: 133 [2020-07-20 11:20:39,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:20:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-20 11:20:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-20 11:20:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 11:20:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 136 transitions. [2020-07-20 11:20:39,684 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 136 transitions. Word has length 63 [2020-07-20 11:20:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:39,684 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 136 transitions. [2020-07-20 11:20:39,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:20:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 136 transitions. [2020-07-20 11:20:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-20 11:20:39,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:20:39,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:20:39,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:39,902 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:20:39,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:20:39,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1154361885, now seen corresponding path program 1 times [2020-07-20 11:20:39,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:20:39,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226732227] [2020-07-20 11:20:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:20:40,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:20:40,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:20:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:20:40,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:20:40,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226732227] [2020-07-20 11:20:40,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:20:40,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:20:40,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105835991] [2020-07-20 11:20:40,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:20:40,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:20:40,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:20:40,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:20:40,088 INFO L87 Difference]: Start difference. First operand 133 states and 136 transitions. Second operand 5 states. [2020-07-20 11:20:40,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:20:40,233 INFO L93 Difference]: Finished difference Result 133 states and 136 transitions. [2020-07-20 11:20:40,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:20:40,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-07-20 11:20:40,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:20:40,234 INFO L225 Difference]: With dead ends: 133 [2020-07-20 11:20:40,235 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:20:40,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:20:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:20:40,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:20:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:20:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:20:40,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2020-07-20 11:20:40,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:20:40,238 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:20:40,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:20:40,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:20:40,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:20:40,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:20:40,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:20:41,289 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2020-07-20 11:20:41,614 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-07-20 11:20:41,800 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-07-20 11:20:42,305 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2020-07-20 11:20:42,657 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-20 11:20:43,589 INFO L271 CegarLoopResult]: At program point KeSetEventENTRY(lines 513 520) the Hoare annotation is: true [2020-07-20 11:20:43,590 INFO L268 CegarLoopResult]: For program point KeSetEventFINAL(lines 513 520) no Hoare annotation was computed. [2020-07-20 11:20:43,590 INFO L268 CegarLoopResult]: For program point KeSetEventEXIT(lines 513 520) no Hoare annotation was computed. [2020-07-20 11:20:43,590 INFO L271 CegarLoopResult]: At program point KbFilter_CompleteENTRY(lines 563 573) the Hoare annotation is: true [2020-07-20 11:20:43,590 INFO L271 CegarLoopResult]: At program point L569(line 569) the Hoare annotation is: true [2020-07-20 11:20:43,591 INFO L268 CegarLoopResult]: For program point L569-1(line 569) no Hoare annotation was computed. [2020-07-20 11:20:43,591 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteFINAL(lines 563 573) no Hoare annotation was computed. [2020-07-20 11:20:43,591 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteEXIT(lines 563 573) no Hoare annotation was computed. [2020-07-20 11:20:43,591 INFO L268 CegarLoopResult]: For program point stub_driver_initEXIT(lines 35 48) no Hoare annotation was computed. [2020-07-20 11:20:43,592 INFO L264 CegarLoopResult]: At program point stub_driver_initENTRY(lines 35 48) the Hoare annotation is: (or (not (<= |old(~pended~0)| 0)) (and (= ~s~0 |old(~s~0)|) (= 0 ~compRegistered~0) (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,592 INFO L268 CegarLoopResult]: For program point stub_driver_initFINAL(lines 35 48) no Hoare annotation was computed. [2020-07-20 11:20:43,592 INFO L268 CegarLoopResult]: For program point _BLAST_initFINAL(lines 49 70) no Hoare annotation was computed. [2020-07-20 11:20:43,592 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)|)) (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) (= ~s~0 |old(~s~0)|) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (= ~SKIP1~0 ~s~0))) [2020-07-20 11:20:43,592 INFO L268 CegarLoopResult]: For program point _BLAST_initEXIT(lines 49 70) no Hoare annotation was computed. [2020-07-20 11:20:43,593 INFO L271 CegarLoopResult]: At program point errorFnENTRY(lines 575 582) the Hoare annotation is: true [2020-07-20 11:20:43,593 INFO L268 CegarLoopResult]: For program point errorFnFINAL(lines 575 582) no Hoare annotation was computed. [2020-07-20 11:20:43,593 INFO L268 CegarLoopResult]: For program point errorFnEXIT(lines 575 582) no Hoare annotation was computed. [2020-07-20 11:20:43,593 INFO L268 CegarLoopResult]: For program point errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION(line 579) no Hoare annotation was computed. [2020-07-20 11:20:43,594 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)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (<= ~pended~0 0) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 11:20:43,594 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 286 420) no Hoare annotation was computed. [2020-07-20 11:20:43,594 INFO L268 CegarLoopResult]: For program point L407(lines 407 409) no Hoare annotation was computed. [2020-07-20 11:20:43,594 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)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (<= ~pended~0 0) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 11:20:43,594 INFO L268 CegarLoopResult]: For program point L383(lines 367 416) no Hoare annotation was computed. [2020-07-20 11:20:43,594 INFO L268 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2020-07-20 11:20:43,594 INFO L268 CegarLoopResult]: For program point L384(lines 384 413) no Hoare annotation was computed. [2020-07-20 11:20:43,594 INFO L264 CegarLoopResult]: At program point L351(lines 350 365) the Hoare annotation is: (or (and (<= ~NP~0 1) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= ~pended~0 0)) (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)|))) [2020-07-20 11:20:43,595 INFO L268 CegarLoopResult]: For program point L376(lines 376 380) no Hoare annotation was computed. [2020-07-20 11:20:43,595 INFO L268 CegarLoopResult]: For program point L368(lines 368 372) no Hoare annotation was computed. [2020-07-20 11:20:43,595 INFO L268 CegarLoopResult]: For program point L335(lines 321 366) no Hoare annotation was computed. [2020-07-20 11:20:43,595 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 286 420) no Hoare annotation was computed. [2020-07-20 11:20:43,595 INFO L268 CegarLoopResult]: For program point L385(lines 385 412) no Hoare annotation was computed. [2020-07-20 11:20:43,595 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))) [2020-07-20 11:20:43,595 INFO L268 CegarLoopResult]: For program point L319-1(lines 295 419) no Hoare annotation was computed. [2020-07-20 11:20:43,596 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)|)) (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) (= ~s~0 |old(~s~0)|) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (<= ~pended~0 0) (= ~SKIP1~0 ~s~0))) [2020-07-20 11:20:43,596 INFO L268 CegarLoopResult]: For program point L402(lines 402 410) no Hoare annotation was computed. [2020-07-20 11:20:43,596 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)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (<= ~pended~0 0) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 11:20:43,596 INFO L268 CegarLoopResult]: For program point L386(lines 386 392) no Hoare annotation was computed. [2020-07-20 11:20:43,596 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)|))) [2020-07-20 11:20:43,596 INFO L268 CegarLoopResult]: For program point L403(lines 403 405) no Hoare annotation was computed. [2020-07-20 11:20:43,596 INFO L268 CegarLoopResult]: For program point L387(lines 387 389) no Hoare annotation was computed. [2020-07-20 11:20:43,596 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)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (<= ~pended~0 0) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 11:20:43,597 INFO L268 CegarLoopResult]: For program point L338-1(lines 337 347) no Hoare annotation was computed. [2020-07-20 11:20:43,597 INFO L268 CegarLoopResult]: For program point L396(lines 396 400) no Hoare annotation was computed. [2020-07-20 11:20:43,597 INFO L268 CegarLoopResult]: For program point L330(lines 330 333) no Hoare annotation was computed. [2020-07-20 11:20:43,597 INFO L264 CegarLoopResult]: At program point L330-2(lines 330 333) the Hoare annotation is: (or (and (<= ~NP~0 1) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= ~pended~0 0)) (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)|))) [2020-07-20 11:20:43,597 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)|))) [2020-07-20 11:20:43,598 INFO L268 CegarLoopResult]: For program point L357(line 357) no Hoare annotation was computed. [2020-07-20 11:20:43,598 INFO L268 CegarLoopResult]: For program point L477(lines 477 494) no Hoare annotation was computed. [2020-07-20 11:20:43,598 INFO L264 CegarLoopResult]: At program point L444(line 444) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (= ~s~0 |old(~s~0)|) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0))))) [2020-07-20 11:20:43,598 INFO L268 CegarLoopResult]: For program point L444-1(line 444) no Hoare annotation was computed. [2020-07-20 11:20:43,598 INFO L264 CegarLoopResult]: At program point L469(lines 442 497) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0)) (= ~SKIP1~0 ~s~0)) (let ((.cse1 (= ~MPR1~0 ~s~0))) (or (and .cse1 (= ~setEventCalled~0 1) (= 259 IofCallDriver_~returnVal2~0)) (and (<= IofCallDriver_~returnVal2~0 0) .cse1) .cse0 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0)))))) [2020-07-20 11:20:43,599 INFO L264 CegarLoopResult]: At program point L457(lines 456 471) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (and (= ~MPR1~0 ~s~0) (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0)) (= ~SKIP1~0 ~s~0)))) [2020-07-20 11:20:43,599 INFO L268 CegarLoopResult]: For program point L486(lines 486 493) no Hoare annotation was computed. [2020-07-20 11:20:43,599 INFO L268 CegarLoopResult]: For program point L449(lines 449 472) no Hoare annotation was computed. [2020-07-20 11:20:43,599 INFO L268 CegarLoopResult]: For program point L478(lines 478 484) no Hoare annotation was computed. [2020-07-20 11:20:43,599 INFO L264 CegarLoopResult]: At program point L445(line 445) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (and (= ~s~0 |old(~s~0)|) (= ~setEventCalled~0 1)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0))))) [2020-07-20 11:20:43,599 INFO L264 CegarLoopResult]: At program point IofCallDriverENTRY(lines 435 498) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0)) (= ~SKIP1~0 ~s~0)) (or .cse0 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (= ~s~0 |old(~s~0)|) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 11:20:43,599 INFO L264 CegarLoopResult]: At program point L491(line 491) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0))))) [2020-07-20 11:20:43,599 INFO L268 CegarLoopResult]: For program point L491-1(lines 473 495) no Hoare annotation was computed. [2020-07-20 11:20:43,599 INFO L268 CegarLoopResult]: For program point L454(lines 454 471) no Hoare annotation was computed. [2020-07-20 11:20:43,600 INFO L264 CegarLoopResult]: At program point L450(lines 449 472) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0)) (= ~SKIP1~0 ~s~0)) (or .cse0 (= ~MPR1~0 ~s~0) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 11:20:43,600 INFO L268 CegarLoopResult]: For program point IofCallDriverFINAL(lines 435 498) no Hoare annotation was computed. [2020-07-20 11:20:43,600 INFO L268 CegarLoopResult]: For program point IofCallDriverEXIT(lines 435 498) no Hoare annotation was computed. [2020-07-20 11:20:43,600 INFO L264 CegarLoopResult]: At program point L455(lines 454 471) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0)))) (and (or .cse0 (not (= ~SKIP1~0 |old(~s~0)|)) (not (= 0 ~compRegistered~0)) (= ~SKIP1~0 ~s~0)) (or .cse0 (= ~MPR1~0 ~s~0) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 11:20:43,600 INFO L268 CegarLoopResult]: For program point L443(lines 443 446) no Hoare annotation was computed. [2020-07-20 11:20:43,600 INFO L268 CegarLoopResult]: For program point L443-1(lines 443 446) no Hoare annotation was computed. [2020-07-20 11:20:43,600 INFO L264 CegarLoopResult]: At program point L429(line 429) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 11:20:43,600 INFO L268 CegarLoopResult]: For program point L429-1(lines 421 434) no Hoare annotation was computed. [2020-07-20 11:20:43,600 INFO L264 CegarLoopResult]: At program point stubMoreProcessingRequiredENTRY(lines 421 434) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (= ~s~0 |old(~s~0)|) (not (<= ~NP~0 1)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 11:20:43,601 INFO L268 CegarLoopResult]: For program point stubMoreProcessingRequiredEXIT(lines 421 434) no Hoare annotation was computed. [2020-07-20 11:20:43,601 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:20:43,601 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~s~0 |old(~s~0)|) [2020-07-20 11:20:43,601 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:20:43,601 INFO L264 CegarLoopResult]: At program point L541(line 541) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~setEventCalled~0)|))) (.cse1 (not (<= ~pended~0 0))) (.cse2 (not (<= 5 ~MPR1~0))) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 (not (= ~MPR3~0 |old(~s~0)|)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4))) [2020-07-20 11:20:43,601 INFO L268 CegarLoopResult]: For program point L539(lines 539 543) no Hoare annotation was computed. [2020-07-20 11:20:43,602 INFO L268 CegarLoopResult]: For program point L539-1(lines 526 545) no Hoare annotation was computed. [2020-07-20 11:20:43,602 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectEXIT(lines 521 562) no Hoare annotation was computed. [2020-07-20 11:20:43,602 INFO L268 CegarLoopResult]: For program point L527(lines 527 532) no Hoare annotation was computed. [2020-07-20 11:20:43,602 INFO L268 CegarLoopResult]: For program point L548(lines 548 560) no Hoare annotation was computed. [2020-07-20 11:20:43,602 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectFINAL(lines 521 562) no Hoare annotation was computed. [2020-07-20 11:20:43,602 INFO L264 CegarLoopResult]: At program point L534(lines 526 545) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~setEventCalled~0)|))) (.cse1 (not (<= ~pended~0 0))) (.cse2 (not (<= 5 ~MPR1~0))) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 (= ~s~0 ~NP~0) .cse2 (not (= ~NP~0 |old(~s~0)|)) .cse3 .cse4) (or .cse0 (not (= ~MPR3~0 |old(~s~0)|)) .cse1 .cse2 .cse3 .cse4))) [2020-07-20 11:20:43,602 INFO L268 CegarLoopResult]: For program point L526(lines 526 545) no Hoare annotation was computed. [2020-07-20 11:20:43,603 INFO L264 CegarLoopResult]: At program point L551(lines 550 560) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~setEventCalled~0)|))) (.cse1 (= ~s~0 ~NP~0)) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (not (<= ~NP~0 1))) (.cse5 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 (not (= ~MPR3~0 |old(~s~0)|)) .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 .cse5))) [2020-07-20 11:20:43,603 INFO L264 CegarLoopResult]: At program point KeWaitForSingleObjectENTRY(lines 521 562) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~setEventCalled~0)|))) (.cse1 (not (<= ~pended~0 0))) (.cse2 (= ~setEventCalled~0 1)) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (not (<= ~NP~0 1))) (.cse5 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 (and (= ~s~0 ~NP~0) .cse2) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 .cse5) (or .cse0 (not (= ~MPR3~0 |old(~s~0)|)) .cse1 (and (= ~MPR3~0 ~s~0) .cse2) .cse3 .cse4 .cse5))) [2020-07-20 11:20:43,603 INFO L264 CegarLoopResult]: At program point L549(lines 548 560) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~setEventCalled~0)|))) (.cse1 (= ~s~0 ~NP~0)) (.cse2 (not (<= ~pended~0 0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (not (<= ~NP~0 1))) (.cse5 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 (not (= ~MPR3~0 |old(~s~0)|)) .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 .cse5))) [2020-07-20 11:20:43,603 INFO L264 CegarLoopResult]: At program point L507(line 507) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= 1 ~compRegistered~0))) [2020-07-20 11:20:43,603 INFO L268 CegarLoopResult]: For program point L507-1(lines 499 512) no Hoare annotation was computed. [2020-07-20 11:20:43,603 INFO L264 CegarLoopResult]: At program point IofCompleteRequestENTRY(lines 499 512) the Hoare annotation is: (or (= ~s~0 ~NP~0) (not (<= ~pended~0 0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= 1 ~compRegistered~0))) [2020-07-20 11:20:43,603 INFO L268 CegarLoopResult]: For program point L503(lines 503 509) no Hoare annotation was computed. [2020-07-20 11:20:43,604 INFO L268 CegarLoopResult]: For program point IofCompleteRequestEXIT(lines 499 512) no Hoare annotation was computed. [2020-07-20 11:20:43,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:20:43,604 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)) [2020-07-20 11:20:43,604 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:20:43,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:20:43,604 INFO L264 CegarLoopResult]: At program point L192(lines 192 194) the Hoare annotation is: (let ((.cse9 (<= ~NP~0 1)) (.cse6 (<= 259 KbFilter_PnP_~status~0)) (.cse7 (= ~setEventCalled~0 1)) (.cse8 (<= 1 ~compRegistered~0)) (.cse10 (<= ~pended~0 0))) (let ((.cse0 (not .cse10)) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (not (= ~NP~0 |old(~s~0)|))) (.cse3 (and .cse9 (= ~s~0 ~NP~0) .cse6 .cse7 .cse10 .cse8)) (.cse4 (not .cse9)) (.cse5 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 (and (= 259 KbFilter_PnP_~__cil_tmp23~0) .cse6 (= ~MPR3~0 ~s~0) .cse7 .cse8) .cse2 .cse3 .cse4 .cse5)))) [2020-07-20 11:20:43,604 INFO L268 CegarLoopResult]: For program point L192-1(lines 192 194) no Hoare annotation was computed. [2020-07-20 11:20:43,605 INFO L268 CegarLoopResult]: For program point L151(lines 151 265) no Hoare annotation was computed. [2020-07-20 11:20:43,605 INFO L268 CegarLoopResult]: For program point L118(lines 118 276) no Hoare annotation was computed. [2020-07-20 11:20:43,605 INFO L264 CegarLoopResult]: At program point L209(line 209) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) (<= 1 ~compRegistered~0))) [2020-07-20 11:20:43,605 INFO L264 CegarLoopResult]: At program point L176(line 176) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,605 INFO L264 CegarLoopResult]: At program point L234(line 234) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,605 INFO L268 CegarLoopResult]: For program point L234-1(lines 230 236) no Hoare annotation was computed. [2020-07-20 11:20:43,605 INFO L268 CegarLoopResult]: For program point L160(lines 160 262) no Hoare annotation was computed. [2020-07-20 11:20:43,605 INFO L268 CegarLoopResult]: For program point L127(lines 127 273) no Hoare annotation was computed. [2020-07-20 11:20:43,606 INFO L264 CegarLoopResult]: At program point L218(line 218) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,606 INFO L264 CegarLoopResult]: At program point L185(lines 185 186) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (not (= ~NP~0 |old(~s~0)|))) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~s~0 |old(~s~0)|) (<= 1 ~compRegistered~0))) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)))) [2020-07-20 11:20:43,606 INFO L268 CegarLoopResult]: For program point L218-1(lines 214 220) no Hoare annotation was computed. [2020-07-20 11:20:43,606 INFO L268 CegarLoopResult]: For program point L185-1(lines 185 186) no Hoare annotation was computed. [2020-07-20 11:20:43,606 INFO L268 CegarLoopResult]: For program point L169(lines 169 181) no Hoare annotation was computed. [2020-07-20 11:20:43,606 INFO L268 CegarLoopResult]: For program point L136(lines 136 270) no Hoare annotation was computed. [2020-07-20 11:20:43,606 INFO L268 CegarLoopResult]: For program point L103(lines 103 281) no Hoare annotation was computed. [2020-07-20 11:20:43,606 INFO L271 CegarLoopResult]: At program point L260(lines 164 261) the Hoare annotation is: true [2020-07-20 11:20:43,607 INFO L268 CegarLoopResult]: For program point KbFilter_PnPEXIT(lines 73 285) no Hoare annotation was computed. [2020-07-20 11:20:43,607 INFO L268 CegarLoopResult]: For program point L145(lines 145 267) no Hoare annotation was computed. [2020-07-20 11:20:43,607 INFO L268 CegarLoopResult]: For program point L112(lines 112 278) no Hoare annotation was computed. [2020-07-20 11:20:43,607 INFO L264 CegarLoopResult]: At program point L104(lines 103 281) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,607 INFO L268 CegarLoopResult]: For program point L154(lines 154 264) no Hoare annotation was computed. [2020-07-20 11:20:43,607 INFO L268 CegarLoopResult]: For program point L121(lines 121 275) no Hoare annotation was computed. [2020-07-20 11:20:43,607 INFO L264 CegarLoopResult]: At program point KbFilter_PnPENTRY(lines 73 285) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (not (= ~NP~0 |old(~s~0)|))) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 (and (= ~s~0 |old(~s~0)|) (= 0 ~compRegistered~0)) .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)))) [2020-07-20 11:20:43,608 INFO L264 CegarLoopResult]: At program point L171(line 171) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,608 INFO L268 CegarLoopResult]: For program point KbFilter_PnPFINAL(lines 73 285) no Hoare annotation was computed. [2020-07-20 11:20:43,608 INFO L264 CegarLoopResult]: At program point L163(lines 109 279) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,608 INFO L268 CegarLoopResult]: For program point L130(lines 130 272) no Hoare annotation was computed. [2020-07-20 11:20:43,608 INFO L268 CegarLoopResult]: For program point L139(lines 139 269) no Hoare annotation was computed. [2020-07-20 11:20:43,608 INFO L268 CegarLoopResult]: For program point L106(lines 106 280) no Hoare annotation was computed. [2020-07-20 11:20:43,608 INFO L268 CegarLoopResult]: For program point L230(lines 230 236) no Hoare annotation was computed. [2020-07-20 11:20:43,608 INFO L264 CegarLoopResult]: At program point L255(lines 255 256) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,609 INFO L268 CegarLoopResult]: For program point L255-1(lines 255 256) no Hoare annotation was computed. [2020-07-20 11:20:43,609 INFO L268 CegarLoopResult]: For program point L214(lines 214 220) no Hoare annotation was computed. [2020-07-20 11:20:43,609 INFO L268 CegarLoopResult]: For program point L148(lines 148 266) no Hoare annotation was computed. [2020-07-20 11:20:43,609 INFO L268 CegarLoopResult]: For program point L115(lines 115 277) no Hoare annotation was computed. [2020-07-20 11:20:43,609 INFO L264 CegarLoopResult]: At program point L107(lines 106 280) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,609 INFO L268 CegarLoopResult]: For program point L198(lines 198 204) no Hoare annotation was computed. [2020-07-20 11:20:43,609 INFO L268 CegarLoopResult]: For program point L190(lines 190 196) no Hoare annotation was computed. [2020-07-20 11:20:43,610 INFO L268 CegarLoopResult]: For program point L157(lines 157 263) no Hoare annotation was computed. [2020-07-20 11:20:43,610 INFO L268 CegarLoopResult]: For program point L124(lines 124 274) no Hoare annotation was computed. [2020-07-20 11:20:43,610 INFO L268 CegarLoopResult]: For program point L190-2(lines 164 259) no Hoare annotation was computed. [2020-07-20 11:20:43,610 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,610 INFO L268 CegarLoopResult]: For program point L240-1(line 240) no Hoare annotation was computed. [2020-07-20 11:20:43,610 INFO L268 CegarLoopResult]: For program point L174(lines 174 180) no Hoare annotation was computed. [2020-07-20 11:20:43,610 INFO L268 CegarLoopResult]: For program point L174-1(lines 169 181) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L199(lines 199 203) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L133(lines 133 271) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L100(lines 100 282) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L264 CegarLoopResult]: At program point L224(lines 224 225) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 225) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L264 CegarLoopResult]: At program point L249(line 249) the Hoare annotation is: (or (not (<= ~pended~0 0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L249-1(lines 245 251) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L142(lines 142 268) no Hoare annotation was computed. [2020-07-20 11:20:43,611 INFO L268 CegarLoopResult]: For program point L109(lines 109 279) no Hoare annotation was computed. [2020-07-20 11:20:43,612 INFO L264 CegarLoopResult]: At program point L101(lines 100 282) the Hoare annotation is: (let ((.cse0 (not (<= ~pended~0 0))) (.cse1 (not (<= 5 ~MPR1~0))) (.cse2 (not (= ~NP~0 |old(~s~0)|))) (.cse3 (not (<= ~NP~0 1))) (.cse4 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 (and (= ~s~0 |old(~s~0)|) (= 0 ~compRegistered~0)) .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)))) [2020-07-20 11:20:43,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:20:43 BoogieIcfgContainer [2020-07-20 11:20:43,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:20:43,661 INFO L168 Benchmark]: Toolchain (without parser) took 13712.53 ms. Allocated memory was 144.2 MB in the beginning and 316.1 MB in the end (delta: 172.0 MB). Free memory was 101.8 MB in the beginning and 106.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 186.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:20:43,662 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 144.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 11:20:43,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.96 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 177.8 MB in the end (delta: -76.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:20:43,663 INFO L168 Benchmark]: Boogie Preprocessor took 66.04 ms. Allocated memory is still 201.9 MB. Free memory was 177.8 MB in the beginning and 175.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:20:43,664 INFO L168 Benchmark]: RCFGBuilder took 1048.23 ms. Allocated memory is still 201.9 MB. Free memory was 175.0 MB in the beginning and 129.6 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:20:43,664 INFO L168 Benchmark]: TraceAbstraction took 11929.09 ms. Allocated memory was 201.9 MB in the beginning and 316.1 MB in the end (delta: 114.3 MB). Free memory was 129.6 MB in the beginning and 106.3 MB in the end (delta: 23.3 MB). Peak memory consumption was 156.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:20:43,668 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 144.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.96 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 177.8 MB in the end (delta: -76.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.04 ms. Allocated memory is still 201.9 MB. Free memory was 177.8 MB in the beginning and 175.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1048.23 ms. Allocated memory is still 201.9 MB. Free memory was 175.0 MB in the beginning and 129.6 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11929.09 ms. Allocated memory was 201.9 MB in the beginning and 316.1 MB in the end (delta: 114.3 MB). Free memory was 129.6 MB in the beginning and 106.3 MB in the end (delta: 23.3 MB). Peak memory consumption was 156.4 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))) || !(\old(SKIP1) == \old(s))) || pended <= 0) || !(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))) || !(\old(SKIP1) == \old(s))) || pended <= 0) || !(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: ((((!(pended <= 0) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((!(pended <= 0) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: (((!(pended <= 0) || !(SKIP1 == \old(s))) || !(0 == compRegistered)) || SKIP1 == s) && (((((!(pended <= 0) || MPR1 == s) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(setEventCalled)) || !(pended <= 0)) || s == NP) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(1 <= compRegistered)) && (((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(pended <= 0)) || !(5 <= MPR1)) || !(NP <= 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((((!(pended <= 0) || !(5 <= MPR1)) || !(NP == \old(s))) || (s == \old(s) && 0 == compRegistered)) || !(NP <= 1)) || !(0 == \old(compRegistered))) && ((((((!(pended <= 0) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(0 == \old(compRegistered))) || !(\old(myStatus) + 1073741637 <= 0)) || myStatus + 1073741637 <= 0) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: (((((!(pended <= 0) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || (MPR1 == s && setEventCalled == 1)) || !(1 <= compRegistered)) && (((!(pended <= 0) || !(SKIP1 == \old(s))) || !(0 == compRegistered)) || SKIP1 == s) - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || s == NP) || !(pended <= 0)) || !(5 <= MPR1)) || !(NP <= 1)) || !(1 <= compRegistered)) && ((((((!(1 == \old(setEventCalled)) || s == NP) || !(pended <= 0)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: (((!(pended <= 0) || !(SKIP1 == \old(s))) || !(0 == compRegistered)) || SKIP1 == s) && ((((((((MPR1 == s && setEventCalled == 1) && 259 == returnVal2) || (returnVal2 <= 0 && MPR1 == s)) || !(pended <= 0)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || s == NP) || !(pended <= 0)) || !(5 <= MPR1)) || !(NP <= 1)) || !(1 <= compRegistered)) && ((((((!(1 == \old(setEventCalled)) || s == NP) || !(pended <= 0)) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || pended <= 0) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((!(pended <= 0) || !(5 <= MPR1)) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: (((!(pended <= 0) || !(SKIP1 == \old(s))) || !(0 == compRegistered)) || SKIP1 == s) && (((((!(pended <= 0) || MPR1 == s) || !(5 <= MPR1)) || !(NP == \old(s))) || !(NP <= 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: ((((((((((NP <= 1 && s == NP) && 0 <= status) && 5 <= MPR1) && 0 == compRegistered) && pended <= 0) || !(\old(pended) <= 0)) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: (((((!(\old(pended) <= 0) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || pended <= 0) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2077 SDtfs, 687 SDslu, 2028 SDs, 0 SdLazy, 347 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 811 GetRequests, 777 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 81 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 281 PreInvPairs, 344 NumberOfFragments, 1749 HoareAnnotationTreeSize, 281 FomulaSimplifications, 107 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 53 FomulaSimplificationsInter, 1926 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 806 ConstructedInterpolants, 0 QuantifiedInterpolants, 87369 SizeOfPredicates, 15 NumberOfNonLiveVariables, 9405 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...