/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 21:47:25,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 21:47:25,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 21:47:25,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 21:47:25,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 21:47:25,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 21:47:25,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 21:47:25,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 21:47:25,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 21:47:25,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 21:47:25,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 21:47:25,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 21:47:25,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 21:47:25,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 21:47:25,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 21:47:25,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 21:47:25,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 21:47:25,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 21:47:25,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 21:47:25,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 21:47:25,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 21:47:25,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 21:47:25,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 21:47:25,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 21:47:25,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 21:47:25,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 21:47:25,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 21:47:25,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 21:47:25,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 21:47:25,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 21:47:25,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 21:47:25,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 21:47:25,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 21:47:25,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 21:47:25,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 21:47:25,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 21:47:25,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 21:47:25,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 21:47:25,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 21:47:25,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 21:47:25,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 21:47:25,541 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 21:47:25,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 21:47:25,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 21:47:25,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 21:47:25,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 21:47:25,559 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 21:47:25,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 21:47:25,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 21:47:25,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 21:47:25,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 21:47:25,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 21:47:25,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 21:47:25,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 21:47:25,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 21:47:25,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 21:47:25,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 21:47:25,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 21:47:25,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 21:47:25,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 21:47:25,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 21:47:25,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 21:47:25,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 21:47:25,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 21:47:25,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 21:47:25,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 21:47:25,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 21:47:25,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 21:47:25,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:25,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 21:47:25,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 21:47:25,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 21:47:25,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 21:47:25,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 21:47:25,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 21:47:25,883 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 21:47:25,884 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 21:47:25,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-20 21:47:25,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467b7119f/db1dbb7760a646579124b9aaf943acba/FLAG197b4b077 [2020-07-20 21:47:26,566 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 21:47:26,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-07-20 21:47:26,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467b7119f/db1dbb7760a646579124b9aaf943acba/FLAG197b4b077 [2020-07-20 21:47:26,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467b7119f/db1dbb7760a646579124b9aaf943acba [2020-07-20 21:47:26,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 21:47:26,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 21:47:26,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 21:47:26,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 21:47:26,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 21:47:26,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:47:26" (1/1) ... [2020-07-20 21:47:26,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69fc279c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:26, skipping insertion in model container [2020-07-20 21:47:26,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:47:26" (1/1) ... [2020-07-20 21:47:26,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 21:47:26,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 21:47:27,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 21:47:27,271 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 21:47:27,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 21:47:27,482 INFO L208 MainTranslator]: Completed translation [2020-07-20 21:47:27,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27 WrapperNode [2020-07-20 21:47:27,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 21:47:27,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 21:47:27,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 21:47:27,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 21:47:27,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... [2020-07-20 21:47:27,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 21:47:27,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 21:47:27,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 21:47:27,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 21:47:27,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 21:47:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 21:47:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 21:47:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-20 21:47:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-20 21:47:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-20 21:47:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 21:47:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-20 21:47:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-20 21:47:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-20 21:47:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-20 21:47:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-20 21:47:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-20 21:47:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-20 21:47:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 21:47:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 21:47:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 21:47:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-20 21:47:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-20 21:47:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-20 21:47:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-20 21:47:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-20 21:47:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-20 21:47:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-20 21:47:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-20 21:47:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-20 21:47:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-20 21:47:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 21:47:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-20 21:47:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 21:47:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 21:47:27,885 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 21:47:28,032 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-07-20 21:47:28,033 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-07-20 21:47:28,035 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 21:47:28,083 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-07-20 21:47:28,083 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-07-20 21:47:28,102 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 21:47:28,128 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-20 21:47:28,129 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-20 21:47:28,147 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-20 21:47:28,298 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-20 21:47:28,298 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-20 21:47:28,322 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 21:47:28,322 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 21:47:28,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:47:28 BoogieIcfgContainer [2020-07-20 21:47:28,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 21:47:28,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 21:47:28,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 21:47:28,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 21:47:28,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:47:26" (1/3) ... [2020-07-20 21:47:28,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682a3450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:47:28, skipping insertion in model container [2020-07-20 21:47:28,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:47:27" (2/3) ... [2020-07-20 21:47:28,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682a3450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:47:28, skipping insertion in model container [2020-07-20 21:47:28,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:47:28" (3/3) ... [2020-07-20 21:47:28,343 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-07-20 21:47:28,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 21:47:28,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 21:47:28,376 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 21:47:28,403 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 21:47:28,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 21:47:28,404 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 21:47:28,404 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 21:47:28,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 21:47:28,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 21:47:28,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 21:47:28,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 21:47:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-20 21:47:28,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-20 21:47:28,440 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:28,441 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 21:47:28,442 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:28,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:28,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1530382191, now seen corresponding path program 1 times [2020-07-20 21:47:28,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:28,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272170476] [2020-07-20 21:47:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 21:47:28,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 21:47:28,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:28,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 21:47:28,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:28,735 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 21:47:28,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:28,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272170476] [2020-07-20 21:47:28,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:28,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:28,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673120456] [2020-07-20 21:47:28,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:28,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:28,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:28,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:28,766 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-20 21:47:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:28,869 INFO L93 Difference]: Finished difference Result 286 states and 438 transitions. [2020-07-20 21:47:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:28,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-07-20 21:47:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:28,888 INFO L225 Difference]: With dead ends: 286 [2020-07-20 21:47:28,888 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 21:47:28,895 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 21:47:28,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 21:47:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-20 21:47:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-20 21:47:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2020-07-20 21:47:28,965 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 20 [2020-07-20 21:47:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:28,966 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2020-07-20 21:47:28,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2020-07-20 21:47:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 21:47:28,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:28,968 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 21:47:29,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:29,184 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:29,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:29,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1141575010, now seen corresponding path program 1 times [2020-07-20 21:47:29,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:29,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442224192] [2020-07-20 21:47:29,185 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:29,326 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:29,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:29,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 21:47:29,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:29,347 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 21:47:29,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:29,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442224192] [2020-07-20 21:47:29,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:29,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:29,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399303406] [2020-07-20 21:47:29,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:29,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:29,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:29,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:29,355 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 3 states. [2020-07-20 21:47:29,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:29,523 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions. [2020-07-20 21:47:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:29,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-20 21:47:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:29,528 INFO L225 Difference]: With dead ends: 258 [2020-07-20 21:47:29,529 INFO L226 Difference]: Without dead ends: 202 [2020-07-20 21:47:29,531 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 21:47:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-20 21:47:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2020-07-20 21:47:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-07-20 21:47:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 252 transitions. [2020-07-20 21:47:29,561 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 252 transitions. Word has length 26 [2020-07-20 21:47:29,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:29,562 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 252 transitions. [2020-07-20 21:47:29,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 252 transitions. [2020-07-20 21:47:29,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-20 21:47:29,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:29,564 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 21:47:29,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:29,778 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:29,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:29,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1029098174, now seen corresponding path program 1 times [2020-07-20 21:47:29,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:29,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925587697] [2020-07-20 21:47:29,780 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:29,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:29,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:29,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 21:47:29,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:29,922 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 21:47:29,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:29,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925587697] [2020-07-20 21:47:29,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:29,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:29,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653297100] [2020-07-20 21:47:29,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:29,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:29,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:29,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:29,926 INFO L87 Difference]: Start difference. First operand 189 states and 252 transitions. Second operand 3 states. [2020-07-20 21:47:29,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:29,988 INFO L93 Difference]: Finished difference Result 310 states and 406 transitions. [2020-07-20 21:47:29,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:29,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-07-20 21:47:29,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:29,996 INFO L225 Difference]: With dead ends: 310 [2020-07-20 21:47:29,996 INFO L226 Difference]: Without dead ends: 248 [2020-07-20 21:47:30,001 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 21:47:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-20 21:47:30,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2020-07-20 21:47:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 21:47:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2020-07-20 21:47:30,044 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 27 [2020-07-20 21:47:30,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:30,045 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2020-07-20 21:47:30,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:30,045 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2020-07-20 21:47:30,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 21:47:30,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:30,047 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 21:47:30,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:30,253 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:30,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:30,253 INFO L82 PathProgramCache]: Analyzing trace with hash 742933031, now seen corresponding path program 1 times [2020-07-20 21:47:30,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:30,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001586527] [2020-07-20 21:47:30,255 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:30,353 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:30,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:30,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 21:47:30,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:30,381 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 21:47:30,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:30,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001586527] [2020-07-20 21:47:30,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:30,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:30,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469390826] [2020-07-20 21:47:30,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:30,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:30,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:30,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:30,386 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand 3 states. [2020-07-20 21:47:30,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:30,480 INFO L93 Difference]: Finished difference Result 214 states and 284 transitions. [2020-07-20 21:47:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:30,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-20 21:47:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:30,485 INFO L225 Difference]: With dead ends: 214 [2020-07-20 21:47:30,485 INFO L226 Difference]: Without dead ends: 211 [2020-07-20 21:47:30,486 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 21:47:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-20 21:47:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-20 21:47:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 21:47:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2020-07-20 21:47:30,508 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 37 [2020-07-20 21:47:30,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:30,509 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2020-07-20 21:47:30,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2020-07-20 21:47:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 21:47:30,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:30,513 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 21:47:30,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:30,726 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:30,727 INFO L82 PathProgramCache]: Analyzing trace with hash 324263340, now seen corresponding path program 1 times [2020-07-20 21:47:30,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:30,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666351987] [2020-07-20 21:47:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:30,905 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:30,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:30,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 21:47:30,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:30,988 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 21:47:30,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:30,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666351987] [2020-07-20 21:47:30,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:30,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 21:47:30,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577947919] [2020-07-20 21:47:30,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 21:47:30,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:30,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 21:47:30,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 21:47:30,991 INFO L87 Difference]: Start difference. First operand 211 states and 281 transitions. Second operand 5 states. [2020-07-20 21:47:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:31,207 INFO L93 Difference]: Finished difference Result 324 states and 427 transitions. [2020-07-20 21:47:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 21:47:31,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-07-20 21:47:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:31,210 INFO L225 Difference]: With dead ends: 324 [2020-07-20 21:47:31,211 INFO L226 Difference]: Without dead ends: 258 [2020-07-20 21:47:31,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 21:47:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-07-20 21:47:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 229. [2020-07-20 21:47:31,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-20 21:47:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 302 transitions. [2020-07-20 21:47:31,232 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 302 transitions. Word has length 45 [2020-07-20 21:47:31,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:31,233 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 302 transitions. [2020-07-20 21:47:31,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 21:47:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 302 transitions. [2020-07-20 21:47:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 21:47:31,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:31,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:47:31,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:31,450 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:31,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:31,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1473664029, now seen corresponding path program 1 times [2020-07-20 21:47:31,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:31,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68441131] [2020-07-20 21:47:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 21:47:31,585 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:31,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:31,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 21:47:31,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:31,607 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 21:47:31,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:31,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68441131] [2020-07-20 21:47:31,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:31,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:31,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613826436] [2020-07-20 21:47:31,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:31,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:31,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:31,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:31,610 INFO L87 Difference]: Start difference. First operand 229 states and 302 transitions. Second operand 3 states. [2020-07-20 21:47:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:31,638 INFO L93 Difference]: Finished difference Result 285 states and 369 transitions. [2020-07-20 21:47:31,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:31,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-20 21:47:31,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:31,641 INFO L225 Difference]: With dead ends: 285 [2020-07-20 21:47:31,641 INFO L226 Difference]: Without dead ends: 221 [2020-07-20 21:47:31,643 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 21:47:31,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-20 21:47:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 200. [2020-07-20 21:47:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-07-20 21:47:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 263 transitions. [2020-07-20 21:47:31,658 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 263 transitions. Word has length 45 [2020-07-20 21:47:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:31,659 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 263 transitions. [2020-07-20 21:47:31,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:31,659 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 263 transitions. [2020-07-20 21:47:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 21:47:31,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:31,662 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 21:47:31,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:31,876 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:31,876 INFO L82 PathProgramCache]: Analyzing trace with hash 726030577, now seen corresponding path program 1 times [2020-07-20 21:47:31,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:31,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117705924] [2020-07-20 21:47:31,878 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:31,968 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:31,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:31,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 21:47:31,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:31,990 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 21:47:31,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:31,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117705924] [2020-07-20 21:47:31,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:31,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:31,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117753788] [2020-07-20 21:47:31,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:31,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:31,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:31,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:31,993 INFO L87 Difference]: Start difference. First operand 200 states and 263 transitions. Second operand 3 states. [2020-07-20 21:47:32,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:32,075 INFO L93 Difference]: Finished difference Result 259 states and 338 transitions. [2020-07-20 21:47:32,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:32,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 21:47:32,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:32,078 INFO L225 Difference]: With dead ends: 259 [2020-07-20 21:47:32,078 INFO L226 Difference]: Without dead ends: 198 [2020-07-20 21:47:32,079 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 21:47:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-07-20 21:47:32,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-07-20 21:47:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-20 21:47:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2020-07-20 21:47:32,094 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 51 [2020-07-20 21:47:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:32,094 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2020-07-20 21:47:32,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2020-07-20 21:47:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-20 21:47:32,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:32,097 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 21:47:32,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:32,312 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:32,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:32,312 INFO L82 PathProgramCache]: Analyzing trace with hash 572107035, now seen corresponding path program 1 times [2020-07-20 21:47:32,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:32,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54517622] [2020-07-20 21:47:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:32,400 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:32,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:32,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 21:47:32,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:32,467 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 21:47:32,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:32,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54517622] [2020-07-20 21:47:32,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:32,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 21:47:32,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957412470] [2020-07-20 21:47:32,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 21:47:32,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:32,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 21:47:32,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 21:47:32,470 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand 6 states. [2020-07-20 21:47:32,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:32,794 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2020-07-20 21:47:32,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 21:47:32,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-07-20 21:47:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:32,798 INFO L225 Difference]: With dead ends: 233 [2020-07-20 21:47:32,798 INFO L226 Difference]: Without dead ends: 209 [2020-07-20 21:47:32,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 21:47:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-07-20 21:47:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2020-07-20 21:47:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-07-20 21:47:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 265 transitions. [2020-07-20 21:47:32,825 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 265 transitions. Word has length 50 [2020-07-20 21:47:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:32,829 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 265 transitions. [2020-07-20 21:47:32,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 21:47:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 265 transitions. [2020-07-20 21:47:32,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 21:47:32,830 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:32,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:47:33,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:33,046 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:33,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:33,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1461171158, now seen corresponding path program 1 times [2020-07-20 21:47:33,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:33,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967837064] [2020-07-20 21:47:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:33,139 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:33,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:33,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 21:47:33,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:33,156 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 21:47:33,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:33,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967837064] [2020-07-20 21:47:33,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:33,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:33,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621105461] [2020-07-20 21:47:33,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:33,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:33,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:33,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:33,161 INFO L87 Difference]: Start difference. First operand 204 states and 265 transitions. Second operand 3 states. [2020-07-20 21:47:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:33,188 INFO L93 Difference]: Finished difference Result 213 states and 276 transitions. [2020-07-20 21:47:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:33,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 21:47:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:33,192 INFO L225 Difference]: With dead ends: 213 [2020-07-20 21:47:33,192 INFO L226 Difference]: Without dead ends: 107 [2020-07-20 21:47:33,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:33,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-20 21:47:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-20 21:47:33,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-20 21:47:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2020-07-20 21:47:33,204 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 52 [2020-07-20 21:47:33,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:33,206 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2020-07-20 21:47:33,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2020-07-20 21:47:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 21:47:33,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:33,208 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 21:47:33,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:33,423 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:33,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:33,423 INFO L82 PathProgramCache]: Analyzing trace with hash -367309916, now seen corresponding path program 1 times [2020-07-20 21:47:33,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:33,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044252867] [2020-07-20 21:47:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:33,531 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:33,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:33,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:47:33,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:33,605 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 21:47:33,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:33,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044252867] [2020-07-20 21:47:33,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:33,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 21:47:33,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937057790] [2020-07-20 21:47:33,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 21:47:33,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:33,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 21:47:33,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 21:47:33,611 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 4 states. [2020-07-20 21:47:33,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:33,713 INFO L93 Difference]: Finished difference Result 117 states and 131 transitions. [2020-07-20 21:47:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 21:47:33,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-07-20 21:47:33,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:33,715 INFO L225 Difference]: With dead ends: 117 [2020-07-20 21:47:33,715 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 21:47:33,716 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 21:47:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 21:47:33,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-20 21:47:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 21:47:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2020-07-20 21:47:33,725 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 59 [2020-07-20 21:47:33,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:33,726 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2020-07-20 21:47:33,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 21:47:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2020-07-20 21:47:33,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 21:47:33,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:33,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 21:47:33,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:33,941 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:33,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:33,942 INFO L82 PathProgramCache]: Analyzing trace with hash -14076392, now seen corresponding path program 1 times [2020-07-20 21:47:33,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:33,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364576010] [2020-07-20 21:47:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:34,036 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:34,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:34,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 21:47:34,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:34,050 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 21:47:34,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:34,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364576010] [2020-07-20 21:47:34,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:34,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:34,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267982861] [2020-07-20 21:47:34,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:34,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:34,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:34,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:34,053 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand 3 states. [2020-07-20 21:47:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:34,091 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2020-07-20 21:47:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:34,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 21:47:34,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:34,093 INFO L225 Difference]: With dead ends: 105 [2020-07-20 21:47:34,093 INFO L226 Difference]: Without dead ends: 86 [2020-07-20 21:47:34,094 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 21:47:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-20 21:47:34,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2020-07-20 21:47:34,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-20 21:47:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2020-07-20 21:47:34,103 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 61 [2020-07-20 21:47:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:34,103 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2020-07-20 21:47:34,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2020-07-20 21:47:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 21:47:34,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:34,105 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 21:47:34,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:34,306 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:34,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:34,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1135324297, now seen corresponding path program 1 times [2020-07-20 21:47:34,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:34,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822687230] [2020-07-20 21:47:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:34,422 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:34,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:34,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 21:47:34,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:34,437 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 21:47:34,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:34,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822687230] [2020-07-20 21:47:34,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:34,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:34,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659274398] [2020-07-20 21:47:34,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:34,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:34,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:34,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:34,440 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 3 states. [2020-07-20 21:47:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:34,462 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2020-07-20 21:47:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:34,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 21:47:34,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:34,464 INFO L225 Difference]: With dead ends: 108 [2020-07-20 21:47:34,464 INFO L226 Difference]: Without dead ends: 87 [2020-07-20 21:47:34,465 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 21:47:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-20 21:47:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2020-07-20 21:47:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-20 21:47:34,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-07-20 21:47:34,473 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 61 [2020-07-20 21:47:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:34,473 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-07-20 21:47:34,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-07-20 21:47:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 21:47:34,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:34,475 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 21:47:34,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:34,675 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:34,676 INFO L82 PathProgramCache]: Analyzing trace with hash -600882406, now seen corresponding path program 1 times [2020-07-20 21:47:34,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:34,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595104627] [2020-07-20 21:47:34,677 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:34,813 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:34,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:34,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 21:47:34,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:34,882 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 21:47:34,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:34,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595104627] [2020-07-20 21:47:34,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:34,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 21:47:34,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430183831] [2020-07-20 21:47:34,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 21:47:34,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:34,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 21:47:34,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 21:47:34,885 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 5 states. [2020-07-20 21:47:34,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:34,953 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2020-07-20 21:47:34,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 21:47:34,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-07-20 21:47:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:34,955 INFO L225 Difference]: With dead ends: 92 [2020-07-20 21:47:34,955 INFO L226 Difference]: Without dead ends: 71 [2020-07-20 21:47:34,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 21:47:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-20 21:47:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-07-20 21:47:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-20 21:47:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2020-07-20 21:47:34,964 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 61 [2020-07-20 21:47:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:34,965 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2020-07-20 21:47:34,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 21:47:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2020-07-20 21:47:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 21:47:34,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:34,966 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 21:47:35,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:35,181 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:35,182 INFO L82 PathProgramCache]: Analyzing trace with hash 475938380, now seen corresponding path program 1 times [2020-07-20 21:47:35,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:35,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006700841] [2020-07-20 21:47:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:35,288 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:35,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:35,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 21:47:35,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:35,327 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 21:47:35,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:35,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006700841] [2020-07-20 21:47:35,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:35,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 21:47:35,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188474381] [2020-07-20 21:47:35,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 21:47:35,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:35,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 21:47:35,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 21:47:35,331 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 6 states. [2020-07-20 21:47:35,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:35,369 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2020-07-20 21:47:35,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 21:47:35,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 21:47:35,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:35,371 INFO L225 Difference]: With dead ends: 78 [2020-07-20 21:47:35,371 INFO L226 Difference]: Without dead ends: 71 [2020-07-20 21:47:35,371 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 21:47:35,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-20 21:47:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-07-20 21:47:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-20 21:47:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2020-07-20 21:47:35,379 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 62 [2020-07-20 21:47:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:35,379 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2020-07-20 21:47:35,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 21:47:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-07-20 21:47:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 21:47:35,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:35,380 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 21:47:35,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:35,582 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:35,583 INFO L82 PathProgramCache]: Analyzing trace with hash 359859562, now seen corresponding path program 1 times [2020-07-20 21:47:35,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:35,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510776393] [2020-07-20 21:47:35,584 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:35,671 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:35,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:35,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 21:47:35,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:35,690 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 21:47:35,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:35,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510776393] [2020-07-20 21:47:35,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:35,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:35,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621358679] [2020-07-20 21:47:35,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:35,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:35,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:35,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:35,692 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 3 states. [2020-07-20 21:47:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:35,709 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-07-20 21:47:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:35,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 21:47:35,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:35,711 INFO L225 Difference]: With dead ends: 73 [2020-07-20 21:47:35,711 INFO L226 Difference]: Without dead ends: 64 [2020-07-20 21:47:35,712 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 21:47:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-20 21:47:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-20 21:47:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-20 21:47:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2020-07-20 21:47:35,718 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 63 [2020-07-20 21:47:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:35,718 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2020-07-20 21:47:35,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2020-07-20 21:47:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 21:47:35,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:35,720 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 21:47:35,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:35,933 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:35,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1228040100, now seen corresponding path program 1 times [2020-07-20 21:47:35,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:35,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80394674] [2020-07-20 21:47:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:36,023 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 21:47:36,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:36,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 21:47:36,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:36,041 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 21:47:36,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:36,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80394674] [2020-07-20 21:47:36,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:36,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 21:47:36,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220121137] [2020-07-20 21:47:36,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 21:47:36,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:36,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 21:47:36,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 21:47:36,044 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 3 states. [2020-07-20 21:47:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:36,073 INFO L93 Difference]: Finished difference Result 117 states and 118 transitions. [2020-07-20 21:47:36,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 21:47:36,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 21:47:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:36,076 INFO L225 Difference]: With dead ends: 117 [2020-07-20 21:47:36,076 INFO L226 Difference]: Without dead ends: 110 [2020-07-20 21:47:36,077 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 21:47:36,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-20 21:47:36,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-07-20 21:47:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-20 21:47:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2020-07-20 21:47:36,088 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 63 [2020-07-20 21:47:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:36,089 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2020-07-20 21:47:36,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 21:47:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2020-07-20 21:47:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 21:47:36,091 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 21:47:36,091 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 21:47:36,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:36,307 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 21:47:36,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 21:47:36,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1291919834, now seen corresponding path program 1 times [2020-07-20 21:47:36,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 21:47:36,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703974797] [2020-07-20 21:47:36,309 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:36,425 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 21:47:36,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 21:47:36,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 21:47:36,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 21:47:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 21:47:36,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 21:47:36,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703974797] [2020-07-20 21:47:36,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 21:47:36,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 21:47:36,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118371987] [2020-07-20 21:47:36,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 21:47:36,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 21:47:36,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 21:47:36,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 21:47:36,482 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 6 states. [2020-07-20 21:47:36,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 21:47:36,515 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2020-07-20 21:47:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 21:47:36,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 21:47:36,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 21:47:36,516 INFO L225 Difference]: With dead ends: 109 [2020-07-20 21:47:36,516 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 21:47:36,517 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 21:47:36,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 21:47:36,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 21:47:36,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 21:47:36,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 21:47:36,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-07-20 21:47:36,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 21:47:36,519 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 21:47:36,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 21:47:36,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 21:47:36,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 21:47:36,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 21:47:36,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 21:47:37,408 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-07-20 21:47:37,623 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-07-20 21:47:37,872 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-07-20 21:47:38,188 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-07-20 21:47:38,465 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-07-20 21:47:38,762 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-07-20 21:47:38,932 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-07-20 21:47:39,226 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-07-20 21:47:39,393 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-07-20 21:47:39,526 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-07-20 21:47:39,688 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-07-20 21:47:39,872 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2020-07-20 21:47:40,028 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-07-20 21:47:40,140 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-07-20 21:47:40,299 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-07-20 21:47:40,462 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-07-20 21:47:40,608 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-07-20 21:47:40,735 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-07-20 21:47:40,847 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-07-20 21:47:40,966 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-07-20 21:47:41,134 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-07-20 21:47:41,275 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2020-07-20 21:47:41,574 INFO L271 CegarLoopResult]: At program point KeSetEventENTRY(lines 513 520) the Hoare annotation is: true [2020-07-20 21:47:41,575 INFO L268 CegarLoopResult]: For program point KeSetEventFINAL(lines 513 520) no Hoare annotation was computed. [2020-07-20 21:47:41,575 INFO L268 CegarLoopResult]: For program point KeSetEventEXIT(lines 513 520) no Hoare annotation was computed. [2020-07-20 21:47:41,575 INFO L271 CegarLoopResult]: At program point KbFilter_CompleteENTRY(lines 563 573) the Hoare annotation is: true [2020-07-20 21:47:41,576 INFO L271 CegarLoopResult]: At program point L569(line 569) the Hoare annotation is: true [2020-07-20 21:47:41,576 INFO L268 CegarLoopResult]: For program point L569-1(line 569) no Hoare annotation was computed. [2020-07-20 21:47:41,576 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteFINAL(lines 563 573) no Hoare annotation was computed. [2020-07-20 21:47:41,576 INFO L268 CegarLoopResult]: For program point KbFilter_CompleteEXIT(lines 563 573) no Hoare annotation was computed. [2020-07-20 21:47:41,576 INFO L268 CegarLoopResult]: For program point stub_driver_initEXIT(lines 35 48) no Hoare annotation was computed. [2020-07-20 21:47:41,577 INFO L264 CegarLoopResult]: At program point stub_driver_initENTRY(lines 35 48) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) (not (= 1 ~pended~0)) (= 0 ~compRegistered~0))) [2020-07-20 21:47:41,577 INFO L268 CegarLoopResult]: For program point stub_driver_initFINAL(lines 35 48) no Hoare annotation was computed. [2020-07-20 21:47:41,577 INFO L268 CegarLoopResult]: For program point _BLAST_initFINAL(lines 49 70) no Hoare annotation was computed. [2020-07-20 21:47:41,577 INFO L264 CegarLoopResult]: At program point _BLAST_initENTRY(lines 49 70) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,578 INFO L268 CegarLoopResult]: For program point _BLAST_initEXIT(lines 49 70) no Hoare annotation was computed. [2020-07-20 21:47:41,578 INFO L271 CegarLoopResult]: At program point errorFnENTRY(lines 575 582) the Hoare annotation is: true [2020-07-20 21:47:41,578 INFO L268 CegarLoopResult]: For program point errorFnFINAL(lines 575 582) no Hoare annotation was computed. [2020-07-20 21:47:41,578 INFO L268 CegarLoopResult]: For program point errorFnEXIT(lines 575 582) no Hoare annotation was computed. [2020-07-20 21:47:41,578 INFO L268 CegarLoopResult]: For program point errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION(line 579) no Hoare annotation was computed. [2020-07-20 21:47:41,578 INFO L264 CegarLoopResult]: At program point L382(lines 375 415) the Hoare annotation is: (or (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (not (= 1 ~pended~0)) (<= ~MPR3~0 6)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 286 420) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L407(lines 407 409) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L264 CegarLoopResult]: At program point L374(lines 367 416) the Hoare annotation is: (or (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (not (= 1 ~pended~0)) (<= ~MPR3~0 6)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L383(lines 367 416) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L384(lines 384 413) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L264 CegarLoopResult]: At program point L351(lines 350 365) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (not (= 1 ~pended~0)) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= 6 ~MPR3~0) (<= ~MPR3~0 6)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L376(lines 376 380) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L368(lines 368 372) no Hoare annotation was computed. [2020-07-20 21:47:41,579 INFO L268 CegarLoopResult]: For program point L335(lines 321 366) no Hoare annotation was computed. [2020-07-20 21:47:41,580 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 286 420) no Hoare annotation was computed. [2020-07-20 21:47:41,580 INFO L268 CegarLoopResult]: For program point L385(lines 385 412) no Hoare annotation was computed. [2020-07-20 21:47:41,580 INFO L264 CegarLoopResult]: At program point L319(line 319) the Hoare annotation is: (or (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (<= 0 main_~status~1) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,580 INFO L268 CegarLoopResult]: For program point L319-1(lines 295 419) no Hoare annotation was computed. [2020-07-20 21:47:41,580 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 286 420) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,580 INFO L268 CegarLoopResult]: For program point L402(lines 402 410) no Hoare annotation was computed. [2020-07-20 21:47:41,580 INFO L264 CegarLoopResult]: At program point L394(lines 385 412) the Hoare annotation is: (or (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (not (= 1 ~pended~0)) (<= ~MPR3~0 6)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,581 INFO L268 CegarLoopResult]: For program point L386(lines 386 392) no Hoare annotation was computed. [2020-07-20 21:47:41,581 INFO L264 CegarLoopResult]: At program point L353(lines 352 365) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (<= 0 main_~status~1) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,581 INFO L268 CegarLoopResult]: For program point L403(lines 403 405) no Hoare annotation was computed. [2020-07-20 21:47:41,581 INFO L268 CegarLoopResult]: For program point L387(lines 387 389) no Hoare annotation was computed. [2020-07-20 21:47:41,581 INFO L264 CegarLoopResult]: At program point L321(lines 295 419) the Hoare annotation is: (or (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (not (= 1 ~pended~0)) (<= ~MPR3~0 6)) (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,581 INFO L268 CegarLoopResult]: For program point L338-1(lines 337 347) no Hoare annotation was computed. [2020-07-20 21:47:41,581 INFO L268 CegarLoopResult]: For program point L396(lines 396 400) no Hoare annotation was computed. [2020-07-20 21:47:41,582 INFO L268 CegarLoopResult]: For program point L330(lines 330 333) no Hoare annotation was computed. [2020-07-20 21:47:41,582 INFO L264 CegarLoopResult]: At program point L330-2(lines 330 333) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (and (<= 3 ~SKIP1~0) (<= ~NP~0 1) (<= 7 ~IPC~0) (= ~s~0 ~NP~0) (<= 0 main_~status~1) (not (= 1 ~pended~0)) (<= 5 ~MPR1~0) (= 0 ~compRegistered~0) (<= 6 ~MPR3~0) (<= ~MPR3~0 6)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,582 INFO L264 CegarLoopResult]: At program point L398(line 398) the Hoare annotation is: (or (not (= |old(~s~0)| |old(~NP~0)|)) (not (= |old(~SKIP1~0)| |old(~s~0)|)) (= 1 |old(~pended~0)|) (not (= 0 |old(~compRegistered~0)|)) (not (= |old(~s~0)| |old(~MPR1~0)|)) (not (= |old(~s~0)| |old(~MPR3~0)|))) [2020-07-20 21:47:41,582 INFO L268 CegarLoopResult]: For program point L357(line 357) no Hoare annotation was computed. [2020-07-20 21:47:41,582 INFO L268 CegarLoopResult]: For program point L477(lines 477 494) no Hoare annotation was computed. [2020-07-20 21:47:41,583 INFO L264 CegarLoopResult]: At program point L444(line 444) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 (= ~s~0 ~NP~0) .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))) (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4))) [2020-07-20 21:47:41,583 INFO L268 CegarLoopResult]: For program point L444-1(line 444) no Hoare annotation was computed. [2020-07-20 21:47:41,583 INFO L264 CegarLoopResult]: At program point L469(lines 442 497) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (let ((.cse5 (= ~MPR1~0 ~s~0))) (or .cse0 (and .cse5 (= ~setEventCalled~0 1) (= 259 IofCallDriver_~returnVal2~0)) .cse1 (and (<= IofCallDriver_~returnVal2~0 0) .cse5) .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0)))))) [2020-07-20 21:47:41,583 INFO L264 CegarLoopResult]: At program point L457(lines 456 471) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (or .cse0 .cse1 .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (and (= ~MPR1~0 ~s~0) (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 21:47:41,583 INFO L268 CegarLoopResult]: For program point L486(lines 486 493) no Hoare annotation was computed. [2020-07-20 21:47:41,583 INFO L268 CegarLoopResult]: For program point L449(lines 449 472) no Hoare annotation was computed. [2020-07-20 21:47:41,584 INFO L268 CegarLoopResult]: For program point L478(lines 478 484) no Hoare annotation was computed. [2020-07-20 21:47:41,584 INFO L264 CegarLoopResult]: At program point L445(line 445) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (and (= ~s~0 ~NP~0) (= ~setEventCalled~0 1)) (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))) (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4))) [2020-07-20 21:47:41,584 INFO L264 CegarLoopResult]: At program point IofCallDriverENTRY(lines 435 498) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (or .cse0 .cse1 (= ~s~0 ~NP~0) .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 21:47:41,584 INFO L264 CegarLoopResult]: At program point L491(line 491) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))) (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4))) [2020-07-20 21:47:41,584 INFO L268 CegarLoopResult]: For program point L491-1(lines 473 495) no Hoare annotation was computed. [2020-07-20 21:47:41,584 INFO L268 CegarLoopResult]: For program point L454(lines 454 471) no Hoare annotation was computed. [2020-07-20 21:47:41,585 INFO L264 CegarLoopResult]: At program point L450(lines 449 472) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (or .cse0 .cse1 (= ~MPR1~0 ~s~0) .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 21:47:41,585 INFO L268 CegarLoopResult]: For program point IofCallDriverFINAL(lines 435 498) no Hoare annotation was computed. [2020-07-20 21:47:41,585 INFO L268 CegarLoopResult]: For program point IofCallDriverEXIT(lines 435 498) no Hoare annotation was computed. [2020-07-20 21:47:41,585 INFO L264 CegarLoopResult]: At program point L455(lines 454 471) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (= 1 ~pended~0)) (.cse4 (not (<= ~NP~0 1)))) (and (or .cse0 .cse1 (not (= ~SKIP1~0 |old(~s~0)|)) .cse2 .cse3 (not (= 0 ~compRegistered~0)) .cse4 (= ~SKIP1~0 ~s~0)) (or .cse0 .cse1 (= ~MPR1~0 ~s~0) .cse2 (not (<= 5 ~MPR1~0)) .cse3 (not (= ~NP~0 |old(~s~0)|)) .cse4 (not (<= 6 ~MPR3~0)) (not (<= 1 ~compRegistered~0))))) [2020-07-20 21:47:41,585 INFO L268 CegarLoopResult]: For program point L443(lines 443 446) no Hoare annotation was computed. [2020-07-20 21:47:41,585 INFO L268 CegarLoopResult]: For program point L443-1(lines 443 446) no Hoare annotation was computed. [2020-07-20 21:47:41,586 INFO L264 CegarLoopResult]: At program point L429(line 429) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 21:47:41,586 INFO L268 CegarLoopResult]: For program point L429-1(lines 421 434) no Hoare annotation was computed. [2020-07-20 21:47:41,586 INFO L264 CegarLoopResult]: At program point stubMoreProcessingRequiredENTRY(lines 421 434) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (= ~s~0 ~NP~0) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= ~setEventCalled~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 21:47:41,586 INFO L268 CegarLoopResult]: For program point stubMoreProcessingRequiredEXIT(lines 421 434) no Hoare annotation was computed. [2020-07-20 21:47:41,586 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 21:47:41,586 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 21:47:41,586 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 21:47:41,587 INFO L264 CegarLoopResult]: At program point L541(line 541) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not (<= ~NP~0 1))) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (not (<= 1 ~compRegistered~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7) (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2020-07-20 21:47:41,587 INFO L268 CegarLoopResult]: For program point L539(lines 539 543) no Hoare annotation was computed. [2020-07-20 21:47:41,587 INFO L268 CegarLoopResult]: For program point L539-1(lines 526 545) no Hoare annotation was computed. [2020-07-20 21:47:41,587 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectEXIT(lines 521 562) no Hoare annotation was computed. [2020-07-20 21:47:41,587 INFO L268 CegarLoopResult]: For program point L527(lines 527 532) no Hoare annotation was computed. [2020-07-20 21:47:41,587 INFO L268 CegarLoopResult]: For program point L548(lines 548 560) no Hoare annotation was computed. [2020-07-20 21:47:41,587 INFO L268 CegarLoopResult]: For program point KeWaitForSingleObjectFINAL(lines 521 562) no Hoare annotation was computed. [2020-07-20 21:47:41,588 INFO L264 CegarLoopResult]: At program point L534(lines 526 545) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not (<= ~NP~0 1))) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or (and (<= ~s~0 ~NP~0) (<= |old(~s~0)| ~s~0)) .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7))) [2020-07-20 21:47:41,588 INFO L268 CegarLoopResult]: For program point L526(lines 526 545) no Hoare annotation was computed. [2020-07-20 21:47:41,588 INFO L264 CegarLoopResult]: At program point L551(lines 550 560) the Hoare annotation is: (let ((.cse9 (<= ~NP~0 1)) (.cse10 (<= 7 ~IPC~0)) (.cse11 (<= ~MPR3~0 6))) (let ((.cse0 (not .cse11)) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not .cse10)) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not .cse9)) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (and .cse9 .cse10 (= ~s~0 ~NP~0) .cse11)) (.cse8 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7 .cse8)))) [2020-07-20 21:47:41,588 INFO L264 CegarLoopResult]: At program point KeWaitForSingleObjectENTRY(lines 521 562) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not (<= ~NP~0 1))) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 (and (= ~MPR3~0 ~s~0) (= ~setEventCalled~0 1)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 (= ~s~0 ~NP~0) .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7))) [2020-07-20 21:47:41,589 INFO L264 CegarLoopResult]: At program point L549(lines 548 560) the Hoare annotation is: (let ((.cse9 (<= ~NP~0 1)) (.cse10 (<= 7 ~IPC~0)) (.cse11 (<= ~MPR3~0 6))) (let ((.cse0 (not .cse11)) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not .cse10)) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not .cse9)) (.cse6 (not (<= 6 ~MPR3~0))) (.cse7 (and .cse9 .cse10 (= ~s~0 ~NP~0) .cse11)) (.cse8 (not (<= 1 ~compRegistered~0)))) (and (or (not (= 1 |old(~setEventCalled~0)|)) (not (= ~MPR3~0 |old(~s~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ~NP~0 |old(~s~0)|)) .cse5 .cse6 .cse7 .cse8)))) [2020-07-20 21:47:41,589 INFO L264 CegarLoopResult]: At program point L507(line 507) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 21:47:41,589 INFO L268 CegarLoopResult]: For program point L507-1(lines 499 512) no Hoare annotation was computed. [2020-07-20 21:47:41,589 INFO L264 CegarLoopResult]: At program point IofCompleteRequestENTRY(lines 499 512) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (= ~s~0 ~NP~0) (not (<= 7 ~IPC~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 1 ~compRegistered~0))) [2020-07-20 21:47:41,589 INFO L268 CegarLoopResult]: For program point L503(lines 503 509) no Hoare annotation was computed. [2020-07-20 21:47:41,589 INFO L268 CegarLoopResult]: For program point IofCompleteRequestEXIT(lines 499 512) no Hoare annotation was computed. [2020-07-20 21:47:41,589 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 21:47:41,590 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~s~0 ~NP~0) (= ~MPR1~0 ~s~0) (not (= 1 ~pended~0)) (= ~MPR3~0 ~s~0) (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) [2020-07-20 21:47:41,590 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 21:47:41,590 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 21:47:41,590 INFO L264 CegarLoopResult]: At program point L192(lines 192 194) the Hoare annotation is: (let ((.cse0 (<= 1 ~compRegistered~0))) (or (not (<= ~MPR3~0 6)) (and (<= 259 KbFilter_PnP_~status~0) (= ~MPR3~0 ~s~0) (= ~setEventCalled~0 1) .cse0) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) .cse0))) [2020-07-20 21:47:41,590 INFO L268 CegarLoopResult]: For program point L192-1(lines 192 194) no Hoare annotation was computed. [2020-07-20 21:47:41,590 INFO L268 CegarLoopResult]: For program point L151(lines 151 265) no Hoare annotation was computed. [2020-07-20 21:47:41,590 INFO L268 CegarLoopResult]: For program point L118(lines 118 276) no Hoare annotation was computed. [2020-07-20 21:47:41,591 INFO L264 CegarLoopResult]: At program point L209(line 209) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|)) (and (= ~s~0 ~NP~0) (<= 1 ~compRegistered~0))) [2020-07-20 21:47:41,591 INFO L264 CegarLoopResult]: At program point L176(line 176) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,591 INFO L264 CegarLoopResult]: At program point L234(line 234) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,591 INFO L268 CegarLoopResult]: For program point L234-1(lines 230 236) no Hoare annotation was computed. [2020-07-20 21:47:41,591 INFO L268 CegarLoopResult]: For program point L160(lines 160 262) no Hoare annotation was computed. [2020-07-20 21:47:41,591 INFO L268 CegarLoopResult]: For program point L127(lines 127 273) no Hoare annotation was computed. [2020-07-20 21:47:41,591 INFO L264 CegarLoopResult]: At program point L218(line 218) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,592 INFO L264 CegarLoopResult]: At program point L185(lines 185 186) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not (= ~NP~0 |old(~s~0)|))) (.cse6 (not (<= ~NP~0 1))) (.cse7 (not (<= 6 ~MPR3~0))) (.cse8 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (and (= ~s~0 ~NP~0) (<= 1 ~compRegistered~0))))) [2020-07-20 21:47:41,592 INFO L268 CegarLoopResult]: For program point L218-1(lines 214 220) no Hoare annotation was computed. [2020-07-20 21:47:41,592 INFO L268 CegarLoopResult]: For program point L185-1(lines 185 186) no Hoare annotation was computed. [2020-07-20 21:47:41,592 INFO L268 CegarLoopResult]: For program point L169(lines 169 181) no Hoare annotation was computed. [2020-07-20 21:47:41,592 INFO L268 CegarLoopResult]: For program point L136(lines 136 270) no Hoare annotation was computed. [2020-07-20 21:47:41,592 INFO L268 CegarLoopResult]: For program point L103(lines 103 281) no Hoare annotation was computed. [2020-07-20 21:47:41,592 INFO L271 CegarLoopResult]: At program point L260(lines 164 261) the Hoare annotation is: true [2020-07-20 21:47:41,592 INFO L268 CegarLoopResult]: For program point KbFilter_PnPEXIT(lines 73 285) no Hoare annotation was computed. [2020-07-20 21:47:41,593 INFO L268 CegarLoopResult]: For program point L145(lines 145 267) no Hoare annotation was computed. [2020-07-20 21:47:41,593 INFO L268 CegarLoopResult]: For program point L112(lines 112 278) no Hoare annotation was computed. [2020-07-20 21:47:41,593 INFO L264 CegarLoopResult]: At program point L104(lines 103 281) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,593 INFO L268 CegarLoopResult]: For program point L154(lines 154 264) no Hoare annotation was computed. [2020-07-20 21:47:41,593 INFO L268 CegarLoopResult]: For program point L121(lines 121 275) no Hoare annotation was computed. [2020-07-20 21:47:41,593 INFO L264 CegarLoopResult]: At program point KbFilter_PnPENTRY(lines 73 285) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not (= ~NP~0 |old(~s~0)|))) (.cse6 (not (<= ~NP~0 1))) (.cse7 (not (<= 6 ~MPR3~0))) (.cse8 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) .cse5 .cse6 .cse7 .cse8))) [2020-07-20 21:47:41,593 INFO L264 CegarLoopResult]: At program point L171(line 171) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,594 INFO L268 CegarLoopResult]: For program point KbFilter_PnPFINAL(lines 73 285) no Hoare annotation was computed. [2020-07-20 21:47:41,594 INFO L264 CegarLoopResult]: At program point L163(lines 109 279) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,594 INFO L268 CegarLoopResult]: For program point L130(lines 130 272) no Hoare annotation was computed. [2020-07-20 21:47:41,594 INFO L268 CegarLoopResult]: For program point L139(lines 139 269) no Hoare annotation was computed. [2020-07-20 21:47:41,594 INFO L268 CegarLoopResult]: For program point L106(lines 106 280) no Hoare annotation was computed. [2020-07-20 21:47:41,594 INFO L268 CegarLoopResult]: For program point L230(lines 230 236) no Hoare annotation was computed. [2020-07-20 21:47:41,594 INFO L264 CegarLoopResult]: At program point L255(lines 255 256) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,594 INFO L268 CegarLoopResult]: For program point L255-1(lines 255 256) no Hoare annotation was computed. [2020-07-20 21:47:41,595 INFO L268 CegarLoopResult]: For program point L214(lines 214 220) no Hoare annotation was computed. [2020-07-20 21:47:41,595 INFO L268 CegarLoopResult]: For program point L148(lines 148 266) no Hoare annotation was computed. [2020-07-20 21:47:41,595 INFO L268 CegarLoopResult]: For program point L115(lines 115 277) no Hoare annotation was computed. [2020-07-20 21:47:41,595 INFO L264 CegarLoopResult]: At program point L107(lines 106 280) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,595 INFO L268 CegarLoopResult]: For program point L198(lines 198 204) no Hoare annotation was computed. [2020-07-20 21:47:41,595 INFO L268 CegarLoopResult]: For program point L190(lines 190 196) no Hoare annotation was computed. [2020-07-20 21:47:41,595 INFO L268 CegarLoopResult]: For program point L157(lines 157 263) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L124(lines 124 274) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L190-2(lines 164 259) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L240-1(line 240) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L174(lines 174 180) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L174-1(lines 169 181) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L199(lines 199 203) no Hoare annotation was computed. [2020-07-20 21:47:41,596 INFO L268 CegarLoopResult]: For program point L133(lines 133 271) no Hoare annotation was computed. [2020-07-20 21:47:41,597 INFO L268 CegarLoopResult]: For program point L100(lines 100 282) no Hoare annotation was computed. [2020-07-20 21:47:41,597 INFO L264 CegarLoopResult]: At program point L224(lines 224 225) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (and (= 0 ~compRegistered~0) (= ~SKIP1~0 ~s~0)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,597 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 225) no Hoare annotation was computed. [2020-07-20 21:47:41,597 INFO L264 CegarLoopResult]: At program point L249(line 249) the Hoare annotation is: (or (not (<= ~MPR3~0 6)) (not (<= 3 ~SKIP1~0)) (not (<= 7 ~IPC~0)) (not (<= 5 ~MPR1~0)) (= 1 ~pended~0) (not (= ~NP~0 |old(~s~0)|)) (not (<= ~NP~0 1)) (not (<= 6 ~MPR3~0)) (not (= 0 |old(~compRegistered~0)|))) [2020-07-20 21:47:41,597 INFO L268 CegarLoopResult]: For program point L249-1(lines 245 251) no Hoare annotation was computed. [2020-07-20 21:47:41,597 INFO L268 CegarLoopResult]: For program point L142(lines 142 268) no Hoare annotation was computed. [2020-07-20 21:47:41,597 INFO L268 CegarLoopResult]: For program point L109(lines 109 279) no Hoare annotation was computed. [2020-07-20 21:47:41,598 INFO L264 CegarLoopResult]: At program point L101(lines 100 282) the Hoare annotation is: (let ((.cse0 (not (<= ~MPR3~0 6))) (.cse1 (not (<= 3 ~SKIP1~0))) (.cse2 (not (<= 7 ~IPC~0))) (.cse3 (not (<= 5 ~MPR1~0))) (.cse4 (= 1 ~pended~0)) (.cse5 (not (= ~NP~0 |old(~s~0)|))) (.cse6 (not (<= ~NP~0 1))) (.cse7 (not (<= 6 ~MPR3~0))) (.cse8 (not (= 0 |old(~compRegistered~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (<= (+ |old(~myStatus~0)| 1073741637) 0)) (<= (+ ~myStatus~0 1073741637) 0)) (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~s~0 ~NP~0) (= 0 ~compRegistered~0)) .cse5 .cse6 .cse7 .cse8))) [2020-07-20 21:47:41,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 09:47:41 BoogieIcfgContainer [2020-07-20 21:47:41,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 21:47:41,637 INFO L168 Benchmark]: Toolchain (without parser) took 14741.66 ms. Allocated memory was 144.2 MB in the beginning and 341.8 MB in the end (delta: 197.7 MB). Free memory was 101.2 MB in the beginning and 128.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 211.7 MB. Max. memory is 7.1 GB. [2020-07-20 21:47:41,638 INFO L168 Benchmark]: CDTParser took 0.26 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 21:47:41,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.07 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 177.6 MB in the end (delta: -76.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-07-20 21:47:41,639 INFO L168 Benchmark]: Boogie Preprocessor took 59.38 ms. Allocated memory is still 201.9 MB. Free memory was 177.6 MB in the beginning and 174.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-20 21:47:41,640 INFO L168 Benchmark]: RCFGBuilder took 788.01 ms. Allocated memory is still 201.9 MB. Free memory was 174.8 MB in the beginning and 129.6 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. [2020-07-20 21:47:41,640 INFO L168 Benchmark]: TraceAbstraction took 13301.60 ms. Allocated memory was 201.9 MB in the beginning and 341.8 MB in the end (delta: 140.0 MB). Free memory was 128.9 MB in the beginning and 128.5 MB in the end (delta: 327.1 kB). Peak memory consumption was 181.7 MB. Max. memory is 7.1 GB. [2020-07-20 21:47:41,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 585.07 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 177.6 MB in the end (delta: -76.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.38 ms. Allocated memory is still 201.9 MB. Free memory was 177.6 MB in the beginning and 174.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 788.01 ms. Allocated memory is still 201.9 MB. Free memory was 174.8 MB in the beginning and 129.6 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13301.60 ms. Allocated memory was 201.9 MB in the beginning and 341.8 MB in the end (delta: 140.0 MB). Free memory was 128.9 MB in the beginning and 128.5 MB in the end (delta: 327.1 kB). Peak memory consumption was 181.7 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: (((((((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && !(1 == pended)) && MPR3 <= 6) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((((((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && !(1 == pended)) && MPR3 <= 6) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || 0 <= status) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || (s == NP && 0 == compRegistered)) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || (s == NP && 0 == compRegistered)) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || MPR1 == s) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) && ((((((((((s <= NP && \old(s) <= s) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered))) || !(\old(myStatus) + 1073741637 <= 0)) || myStatus + 1073741637 <= 0) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || (s == NP && 0 == compRegistered)) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered))) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (MPR1 == s && setEventCalled == 1)) || !(1 <= compRegistered)) - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP <= 1)) || !(6 <= MPR3)) || (((NP <= 1 && 7 <= IPC) && s == NP) && MPR3 <= 6)) || !(1 <= compRegistered)) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (((NP <= 1 && 7 <= IPC) && s == NP) && MPR3 <= 6)) || !(1 <= compRegistered)) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && ((((((((((!(MPR3 <= 6) || ((MPR1 == s && setEventCalled == 1) && 259 == returnVal2)) || !(3 <= SKIP1)) || (returnVal2 <= 0 && MPR1 == s)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(setEventCalled)) || !(MPR3 == \old(s))) || !(MPR3 <= 6)) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP <= 1)) || !(6 <= MPR3)) || (((NP <= 1 && 7 <= IPC) && s == NP) && MPR3 <= 6)) || !(1 <= compRegistered)) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || (((NP <= 1 && 7 <= IPC) && s == NP) && MPR3 <= 6)) || !(1 <= compRegistered)) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: (((((((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && !(1 == pended)) && MPR3 <= 6) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || (s == NP && 0 == compRegistered)) || !(NP <= 1)) || !(6 <= MPR3)) || !(0 == \old(compRegistered)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: (((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || !(SKIP1 == \old(s))) || !(7 <= IPC)) || 1 == pended) || !(0 == compRegistered)) || !(NP <= 1)) || SKIP1 == s) && (((((((((!(MPR3 <= 6) || !(3 <= SKIP1)) || MPR1 == s) || !(7 <= IPC)) || !(5 <= MPR1)) || 1 == pended) || !(NP == \old(s))) || !(NP <= 1)) || !(6 <= MPR3)) || !(1 <= compRegistered)) - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: (((((!(\old(s) == \old(NP)) || !(\old(SKIP1) == \old(s))) || (((((((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && s == NP) && 0 <= status) && !(1 == pended)) && 5 <= MPR1) && 0 == compRegistered) && 6 <= MPR3) && MPR3 <= 6)) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: (((((((((3 <= SKIP1 && NP <= 1) && 7 <= IPC) && !(1 == pended)) && MPR3 <= 6) || !(\old(s) == \old(NP))) || !(\old(SKIP1) == \old(s))) || 1 == \old(pended)) || !(0 == \old(compRegistered))) || !(\old(s) == \old(MPR1))) || !(\old(s) == \old(MPR3)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2266 SDtfs, 1199 SDslu, 2017 SDs, 0 SdLazy, 608 SolverSat, 125 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 834 GetRequests, 795 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 114 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 274 PreInvPairs, 334 NumberOfFragments, 2520 HoareAnnotationTreeSize, 274 FomulaSimplifications, 547 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 53 FomulaSimplificationsInter, 3627 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 846 NumberOfCodeBlocks, 534 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 117491 SizeOfPredicates, 20 NumberOfNonLiveVariables, 6460 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...