/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 06:32:54,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 06:32:54,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 06:32:54,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 06:32:54,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 06:32:54,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 06:32:54,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 06:32:54,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 06:32:54,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 06:32:54,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 06:32:54,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 06:32:54,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 06:32:54,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 06:32:54,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 06:32:54,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 06:32:54,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 06:32:54,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 06:32:54,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 06:32:54,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 06:32:54,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 06:32:54,497 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 06:32:54,533 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 06:32:54,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 06:32:54,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 06:32:54,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 06:32:54,538 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 06:32:54,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 06:32:54,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 06:32:54,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 06:32:54,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 06:32:54,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 06:32:54,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 06:32:54,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 06:32:54,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 06:32:54,542 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 06:32:54,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 06:32:54,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 06:32:54,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 06:32:54,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 06:32:54,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 06:32:54,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 06:32:54,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 06:32:54,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 06:32:54,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 06:32:54,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 06:32:54,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 06:32:54,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 06:32:54,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 06:32:54,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 06:32:54,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 06:32:54,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 06:32:54,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 06:32:54,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 06:32:54,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 06:32:54,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 06:32:54,858 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 06:32:54,859 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 06:32:54,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8bbbf90/b257f8e455814edca669df7f4a41cc0c/FLAG22bca3311 [2020-07-20 06:32:55,545 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 06:32:55,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 06:32:55,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8bbbf90/b257f8e455814edca669df7f4a41cc0c/FLAG22bca3311 [2020-07-20 06:32:55,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8bbbf90/b257f8e455814edca669df7f4a41cc0c [2020-07-20 06:32:55,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 06:32:55,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 06:32:55,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 06:32:55,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 06:32:55,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 06:32:55,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:32:55" (1/1) ... [2020-07-20 06:32:55,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a24382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:55, skipping insertion in model container [2020-07-20 06:32:55,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:32:55" (1/1) ... [2020-07-20 06:32:55,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 06:32:55,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 06:32:57,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:32:57,305 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 06:32:58,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:32:58,283 INFO L208 MainTranslator]: Completed translation [2020-07-20 06:32:58,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58 WrapperNode [2020-07-20 06:32:58,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 06:32:58,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 06:32:58,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 06:32:58,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 06:32:58,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (1/1) ... [2020-07-20 06:32:58,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 06:32:58,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 06:32:58,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 06:32:58,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 06:32:58,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (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 06:32:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 06:32:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 06:32:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 06:32:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 06:32:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 06:32:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-20 06:32:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-07-20 06:32:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-20 06:32:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-07-20 06:32:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 06:32:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 06:32:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-20 06:32:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-07-20 06:32:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-07-20 06:32:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-07-20 06:32:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-07-20 06:32:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-07-20 06:32:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-20 06:32:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-20 06:32:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 06:32:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 06:32:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 06:33:01,853 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 06:33:01,853 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 06:33:01,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:33:01 BoogieIcfgContainer [2020-07-20 06:33:01,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 06:33:01,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 06:33:01,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 06:33:01,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 06:33:01,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:32:55" (1/3) ... [2020-07-20 06:33:01,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0de485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:33:01, skipping insertion in model container [2020-07-20 06:33:01,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:32:58" (2/3) ... [2020-07-20 06:33:01,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0de485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:33:01, skipping insertion in model container [2020-07-20 06:33:01,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:33:01" (3/3) ... [2020-07-20 06:33:01,875 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-07-20 06:33:01,883 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 06:33:01,893 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-07-20 06:33:01,905 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-07-20 06:33:01,940 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 06:33:01,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 06:33:01,941 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 06:33:01,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 06:33:01,941 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 06:33:01,941 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 06:33:01,941 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 06:33:01,941 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 06:33:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states. [2020-07-20 06:33:02,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 06:33:02,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:02,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:33:02,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:02,021 INFO L82 PathProgramCache]: Analyzing trace with hash -537993708, now seen corresponding path program 1 times [2020-07-20 06:33:02,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:02,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57097024] [2020-07-20 06:33:02,030 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:33:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:03,690 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:03,952 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 06:33:03,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57097024] [2020-07-20 06:33:03,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:03,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:33:03,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651734364] [2020-07-20 06:33:03,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:33:03,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:03,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:33:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:33:03,980 INFO L87 Difference]: Start difference. First operand 1027 states. Second operand 4 states. [2020-07-20 06:33:04,603 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 06:33:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:11,942 INFO L93 Difference]: Finished difference Result 1794 states and 3183 transitions. [2020-07-20 06:33:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:33:11,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 06:33:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:11,974 INFO L225 Difference]: With dead ends: 1794 [2020-07-20 06:33:11,974 INFO L226 Difference]: Without dead ends: 1483 [2020-07-20 06:33:11,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:33:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-07-20 06:33:12,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2020-07-20 06:33:12,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2020-07-20 06:33:12,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2263 transitions. [2020-07-20 06:33:12,134 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2263 transitions. Word has length 327 [2020-07-20 06:33:12,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:12,136 INFO L479 AbstractCegarLoop]: Abstraction has 1481 states and 2263 transitions. [2020-07-20 06:33:12,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:33:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2263 transitions. [2020-07-20 06:33:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 06:33:12,146 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:12,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:33:12,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 06:33:12,147 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:12,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:12,148 INFO L82 PathProgramCache]: Analyzing trace with hash 297127498, now seen corresponding path program 1 times [2020-07-20 06:33:12,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:12,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864831725] [2020-07-20 06:33:12,149 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:33:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:13,342 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:13,640 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 06:33:13,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864831725] [2020-07-20 06:33:13,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:13,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:33:13,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807522972] [2020-07-20 06:33:13,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:33:13,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:13,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:33:13,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:33:13,647 INFO L87 Difference]: Start difference. First operand 1481 states and 2263 transitions. Second operand 4 states. [2020-07-20 06:33:14,521 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 06:33:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:21,828 INFO L93 Difference]: Finished difference Result 2844 states and 4401 transitions. [2020-07-20 06:33:21,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:33:21,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 06:33:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:21,861 INFO L225 Difference]: With dead ends: 2844 [2020-07-20 06:33:21,863 INFO L226 Difference]: Without dead ends: 2425 [2020-07-20 06:33:21,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:33:21,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-07-20 06:33:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2423. [2020-07-20 06:33:21,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-20 06:33:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3727 transitions. [2020-07-20 06:33:21,973 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3727 transitions. Word has length 327 [2020-07-20 06:33:21,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:21,975 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3727 transitions. [2020-07-20 06:33:21,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:33:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3727 transitions. [2020-07-20 06:33:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 06:33:22,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:22,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:33:22,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 06:33:22,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:22,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:22,039 INFO L82 PathProgramCache]: Analyzing trace with hash -586459585, now seen corresponding path program 1 times [2020-07-20 06:33:22,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:22,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085115190] [2020-07-20 06:33:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:33:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:23,082 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:23,204 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 06:33:23,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085115190] [2020-07-20 06:33:23,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:23,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:33:23,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304409999] [2020-07-20 06:33:23,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:33:23,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:23,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:33:23,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:33:23,207 INFO L87 Difference]: Start difference. First operand 2423 states and 3727 transitions. Second operand 4 states. [2020-07-20 06:33:23,806 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-07-20 06:33:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:30,234 INFO L93 Difference]: Finished difference Result 5038 states and 7854 transitions. [2020-07-20 06:33:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:33:30,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-07-20 06:33:30,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:30,258 INFO L225 Difference]: With dead ends: 5038 [2020-07-20 06:33:30,258 INFO L226 Difference]: Without dead ends: 4361 [2020-07-20 06:33:30,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:33:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2020-07-20 06:33:30,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4359. [2020-07-20 06:33:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2020-07-20 06:33:30,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 6733 transitions. [2020-07-20 06:33:30,397 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 6733 transitions. Word has length 327 [2020-07-20 06:33:30,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:30,398 INFO L479 AbstractCegarLoop]: Abstraction has 4359 states and 6733 transitions. [2020-07-20 06:33:30,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:33:30,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 6733 transitions. [2020-07-20 06:33:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-20 06:33:30,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:30,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:33:30,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 06:33:30,414 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:30,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:30,415 INFO L82 PathProgramCache]: Analyzing trace with hash -586798209, now seen corresponding path program 1 times [2020-07-20 06:33:30,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:30,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784846808] [2020-07-20 06:33:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:33:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:31,649 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:31,778 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 06:33:31,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784846808] [2020-07-20 06:33:31,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:31,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:33:31,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404406538] [2020-07-20 06:33:31,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:33:31,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:31,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:33:31,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:33:31,781 INFO L87 Difference]: Start difference. First operand 4359 states and 6733 transitions. Second operand 5 states. [2020-07-20 06:33:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:41,646 INFO L93 Difference]: Finished difference Result 12898 states and 19904 transitions. [2020-07-20 06:33:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:33:41,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-07-20 06:33:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:41,685 INFO L225 Difference]: With dead ends: 12898 [2020-07-20 06:33:41,686 INFO L226 Difference]: Without dead ends: 8554 [2020-07-20 06:33:41,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:33:41,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2020-07-20 06:33:41,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 8347. [2020-07-20 06:33:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8347 states. [2020-07-20 06:33:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8347 states to 8347 states and 12864 transitions. [2020-07-20 06:33:41,971 INFO L78 Accepts]: Start accepts. Automaton has 8347 states and 12864 transitions. Word has length 327 [2020-07-20 06:33:41,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:41,972 INFO L479 AbstractCegarLoop]: Abstraction has 8347 states and 12864 transitions. [2020-07-20 06:33:41,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:33:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8347 states and 12864 transitions. [2020-07-20 06:33:41,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-07-20 06:33:41,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:41,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:33:41,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 06:33:41,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:41,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:41,991 INFO L82 PathProgramCache]: Analyzing trace with hash 318218777, now seen corresponding path program 1 times [2020-07-20 06:33:41,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:41,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909326602] [2020-07-20 06:33:41,992 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:33:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:42,834 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:43,072 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 06:33:43,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909326602] [2020-07-20 06:33:43,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:43,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:33:43,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448851362] [2020-07-20 06:33:43,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:33:43,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:43,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:33:43,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:33:43,075 INFO L87 Difference]: Start difference. First operand 8347 states and 12864 transitions. Second operand 4 states. [2020-07-20 06:33:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:33:54,026 INFO L93 Difference]: Finished difference Result 24596 states and 37840 transitions. [2020-07-20 06:33:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:33:54,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-07-20 06:33:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:33:54,091 INFO L225 Difference]: With dead ends: 24596 [2020-07-20 06:33:54,092 INFO L226 Difference]: Without dead ends: 16378 [2020-07-20 06:33:54,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:33:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16378 states. [2020-07-20 06:33:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16378 to 16171. [2020-07-20 06:33:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2020-07-20 06:33:54,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 24823 transitions. [2020-07-20 06:33:54,746 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 24823 transitions. Word has length 329 [2020-07-20 06:33:54,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:33:54,746 INFO L479 AbstractCegarLoop]: Abstraction has 16171 states and 24823 transitions. [2020-07-20 06:33:54,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:33:54,747 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 24823 transitions. [2020-07-20 06:33:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-07-20 06:33:54,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:33:54,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:33:54,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 06:33:54,775 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:33:54,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:33:54,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1871319948, now seen corresponding path program 1 times [2020-07-20 06:33:54,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:33:54,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534334715] [2020-07-20 06:33:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:33:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:55,519 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:33:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:33:55,620 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 06:33:55,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534334715] [2020-07-20 06:33:55,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:33:55,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:33:55,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663997920] [2020-07-20 06:33:55,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:33:55,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:33:55,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:33:55,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:33:55,624 INFO L87 Difference]: Start difference. First operand 16171 states and 24823 transitions. Second operand 4 states. [2020-07-20 06:34:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:07,356 INFO L93 Difference]: Finished difference Result 48438 states and 74345 transitions. [2020-07-20 06:34:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:34:07,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-07-20 06:34:07,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:07,430 INFO L225 Difference]: With dead ends: 48438 [2020-07-20 06:34:07,430 INFO L226 Difference]: Without dead ends: 32309 [2020-07-20 06:34:07,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2020-07-20 06:34:08,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 16190. [2020-07-20 06:34:08,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16190 states. [2020-07-20 06:34:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16190 states to 16190 states and 24851 transitions. [2020-07-20 06:34:08,224 INFO L78 Accepts]: Start accepts. Automaton has 16190 states and 24851 transitions. Word has length 329 [2020-07-20 06:34:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:34:08,224 INFO L479 AbstractCegarLoop]: Abstraction has 16190 states and 24851 transitions. [2020-07-20 06:34:08,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:34:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 16190 states and 24851 transitions. [2020-07-20 06:34:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 06:34:08,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:34:08,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:08,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 06:34:08,255 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:34:08,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:34:08,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1567258959, now seen corresponding path program 1 times [2020-07-20 06:34:08,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:34:08,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263309133] [2020-07-20 06:34:08,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:34:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:09,024 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:34:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:09,178 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 06:34:09,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263309133] [2020-07-20 06:34:09,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:34:09,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:34:09,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793356698] [2020-07-20 06:34:09,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:34:09,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:34:09,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:34:09,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:09,183 INFO L87 Difference]: Start difference. First operand 16190 states and 24851 transitions. Second operand 4 states. [2020-07-20 06:34:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:21,267 INFO L93 Difference]: Finished difference Result 48457 states and 74366 transitions. [2020-07-20 06:34:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:34:21,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-07-20 06:34:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:21,346 INFO L225 Difference]: With dead ends: 48457 [2020-07-20 06:34:21,347 INFO L226 Difference]: Without dead ends: 32327 [2020-07-20 06:34:21,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32327 states. [2020-07-20 06:34:21,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32327 to 16208. [2020-07-20 06:34:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16208 states. [2020-07-20 06:34:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16208 states to 16208 states and 24872 transitions. [2020-07-20 06:34:21,956 INFO L78 Accepts]: Start accepts. Automaton has 16208 states and 24872 transitions. Word has length 330 [2020-07-20 06:34:21,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:34:21,956 INFO L479 AbstractCegarLoop]: Abstraction has 16208 states and 24872 transitions. [2020-07-20 06:34:21,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:34:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 16208 states and 24872 transitions. [2020-07-20 06:34:21,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-07-20 06:34:21,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:34:21,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:21,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 06:34:21,980 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:34:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:34:21,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1372001314, now seen corresponding path program 1 times [2020-07-20 06:34:21,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:34:21,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539603161] [2020-07-20 06:34:21,981 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:34:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:22,880 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:34:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:23,042 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 06:34:23,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539603161] [2020-07-20 06:34:23,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:34:23,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:34:23,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444377144] [2020-07-20 06:34:23,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:34:23,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:34:23,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:34:23,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:23,052 INFO L87 Difference]: Start difference. First operand 16208 states and 24872 transitions. Second operand 4 states. [2020-07-20 06:34:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:34,723 INFO L93 Difference]: Finished difference Result 47657 states and 72993 transitions. [2020-07-20 06:34:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:34:34,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2020-07-20 06:34:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:34,792 INFO L225 Difference]: With dead ends: 47657 [2020-07-20 06:34:34,792 INFO L226 Difference]: Without dead ends: 31694 [2020-07-20 06:34:34,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31694 states. [2020-07-20 06:34:35,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31694 to 31487. [2020-07-20 06:34:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31487 states. [2020-07-20 06:34:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31487 states to 31487 states and 48052 transitions. [2020-07-20 06:34:35,794 INFO L78 Accepts]: Start accepts. Automaton has 31487 states and 48052 transitions. Word has length 331 [2020-07-20 06:34:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:34:35,794 INFO L479 AbstractCegarLoop]: Abstraction has 31487 states and 48052 transitions. [2020-07-20 06:34:35,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:34:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 31487 states and 48052 transitions. [2020-07-20 06:34:35,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-07-20 06:34:35,824 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:34:35,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:35,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 06:34:35,825 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:34:35,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:34:35,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1276054559, now seen corresponding path program 1 times [2020-07-20 06:34:35,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:34:35,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068067824] [2020-07-20 06:34:35,826 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:34:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:37,010 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:34:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:37,117 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 06:34:37,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068067824] [2020-07-20 06:34:37,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:34:37,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:34:37,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053421957] [2020-07-20 06:34:37,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:34:37,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:34:37,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:34:37,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:34:37,120 INFO L87 Difference]: Start difference. First operand 31487 states and 48052 transitions. Second operand 5 states. [2020-07-20 06:34:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:45,752 INFO L93 Difference]: Finished difference Result 64556 states and 98457 transitions. [2020-07-20 06:34:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:34:45,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-07-20 06:34:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:45,802 INFO L225 Difference]: With dead ends: 64556 [2020-07-20 06:34:45,802 INFO L226 Difference]: Without dead ends: 32561 [2020-07-20 06:34:45,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:34:45,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32561 states. [2020-07-20 06:34:47,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32561 to 32354. [2020-07-20 06:34:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32354 states. [2020-07-20 06:34:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32354 states to 32354 states and 49170 transitions. [2020-07-20 06:34:47,095 INFO L78 Accepts]: Start accepts. Automaton has 32354 states and 49170 transitions. Word has length 331 [2020-07-20 06:34:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:34:47,095 INFO L479 AbstractCegarLoop]: Abstraction has 32354 states and 49170 transitions. [2020-07-20 06:34:47,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:34:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 32354 states and 49170 transitions. [2020-07-20 06:34:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:34:47,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:34:47,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:47,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 06:34:47,117 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:34:47,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:34:47,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1240087947, now seen corresponding path program 1 times [2020-07-20 06:34:47,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:34:47,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494547875] [2020-07-20 06:34:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:34:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:47,753 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:34:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:47,866 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 06:34:47,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494547875] [2020-07-20 06:34:47,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:34:47,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:34:47,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857667128] [2020-07-20 06:34:47,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:34:47,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:34:47,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:34:47,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:47,870 INFO L87 Difference]: Start difference. First operand 32354 states and 49170 transitions. Second operand 4 states. [2020-07-20 06:34:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:34:56,492 INFO L93 Difference]: Finished difference Result 96190 states and 146033 transitions. [2020-07-20 06:34:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:34:56,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-20 06:34:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:34:56,556 INFO L225 Difference]: With dead ends: 96190 [2020-07-20 06:34:56,556 INFO L226 Difference]: Without dead ends: 64289 [2020-07-20 06:34:56,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:34:56,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64289 states. [2020-07-20 06:34:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64289 to 32412. [2020-07-20 06:34:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32412 states. [2020-07-20 06:34:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32412 states to 32412 states and 49245 transitions. [2020-07-20 06:34:57,810 INFO L78 Accepts]: Start accepts. Automaton has 32412 states and 49245 transitions. Word has length 333 [2020-07-20 06:34:57,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:34:57,810 INFO L479 AbstractCegarLoop]: Abstraction has 32412 states and 49245 transitions. [2020-07-20 06:34:57,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:34:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 32412 states and 49245 transitions. [2020-07-20 06:34:57,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:34:57,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:34:57,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:57,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-20 06:34:57,838 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:34:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:34:57,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1927314311, now seen corresponding path program 1 times [2020-07-20 06:34:57,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:34:57,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907857148] [2020-07-20 06:34:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:34:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:59,057 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:34:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:34:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:34:59,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907857148] [2020-07-20 06:34:59,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:34:59,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:34:59,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861851882] [2020-07-20 06:34:59,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:34:59,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:34:59,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:34:59,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:34:59,155 INFO L87 Difference]: Start difference. First operand 32412 states and 49245 transitions. Second operand 5 states. [2020-07-20 06:35:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:35:17,704 INFO L93 Difference]: Finished difference Result 119792 states and 181623 transitions. [2020-07-20 06:35:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 06:35:17,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 333 [2020-07-20 06:35:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:35:17,792 INFO L225 Difference]: With dead ends: 119792 [2020-07-20 06:35:17,792 INFO L226 Difference]: Without dead ends: 88207 [2020-07-20 06:35:17,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:35:17,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88207 states. [2020-07-20 06:35:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88207 to 32661. [2020-07-20 06:35:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32661 states. [2020-07-20 06:35:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32661 states to 32661 states and 49637 transitions. [2020-07-20 06:35:19,659 INFO L78 Accepts]: Start accepts. Automaton has 32661 states and 49637 transitions. Word has length 333 [2020-07-20 06:35:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:35:19,659 INFO L479 AbstractCegarLoop]: Abstraction has 32661 states and 49637 transitions. [2020-07-20 06:35:19,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:35:19,659 INFO L276 IsEmpty]: Start isEmpty. Operand 32661 states and 49637 transitions. [2020-07-20 06:35:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 06:35:19,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:35:19,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:19,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-20 06:35:19,689 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:35:19,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:35:19,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1238335886, now seen corresponding path program 1 times [2020-07-20 06:35:19,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:35:19,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270537047] [2020-07-20 06:35:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:35:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:20,487 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:35:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:20,570 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 06:35:20,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270537047] [2020-07-20 06:35:20,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:35:20,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:35:20,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464797128] [2020-07-20 06:35:20,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:35:20,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:35:20,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:35:20,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:35:20,572 INFO L87 Difference]: Start difference. First operand 32661 states and 49637 transitions. Second operand 4 states. [2020-07-20 06:35:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:35:30,937 INFO L93 Difference]: Finished difference Result 81798 states and 125255 transitions. [2020-07-20 06:35:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:35:30,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-07-20 06:35:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:35:31,000 INFO L225 Difference]: With dead ends: 81798 [2020-07-20 06:35:31,001 INFO L226 Difference]: Without dead ends: 51671 [2020-07-20 06:35:31,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:35:31,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51671 states. [2020-07-20 06:35:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51671 to 40853. [2020-07-20 06:35:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40853 states. [2020-07-20 06:35:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40853 states to 40853 states and 63079 transitions. [2020-07-20 06:35:32,973 INFO L78 Accepts]: Start accepts. Automaton has 40853 states and 63079 transitions. Word has length 333 [2020-07-20 06:35:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:35:32,973 INFO L479 AbstractCegarLoop]: Abstraction has 40853 states and 63079 transitions. [2020-07-20 06:35:32,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:35:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 40853 states and 63079 transitions. [2020-07-20 06:35:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-20 06:35:32,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:35:32,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:32,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-20 06:35:32,996 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:35:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:35:32,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1655619516, now seen corresponding path program 1 times [2020-07-20 06:35:32,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:35:32,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929916068] [2020-07-20 06:35:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:35:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:33,669 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:35:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:33,797 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 06:35:33,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929916068] [2020-07-20 06:35:33,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:35:33,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:35:33,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182435457] [2020-07-20 06:35:33,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:35:33,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:35:33,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:35:33,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:35:33,801 INFO L87 Difference]: Start difference. First operand 40853 states and 63079 transitions. Second operand 4 states. [2020-07-20 06:35:45,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:35:45,013 INFO L93 Difference]: Finished difference Result 102490 states and 159469 transitions. [2020-07-20 06:35:45,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:35:45,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2020-07-20 06:35:45,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:35:45,081 INFO L225 Difference]: With dead ends: 102490 [2020-07-20 06:35:45,081 INFO L226 Difference]: Without dead ends: 64639 [2020-07-20 06:35:45,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:35:45,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64639 states. [2020-07-20 06:35:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64639 to 55509. [2020-07-20 06:35:49,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55509 states. [2020-07-20 06:35:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55509 states to 55509 states and 86991 transitions. [2020-07-20 06:35:49,291 INFO L78 Accepts]: Start accepts. Automaton has 55509 states and 86991 transitions. Word has length 335 [2020-07-20 06:35:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:35:49,291 INFO L479 AbstractCegarLoop]: Abstraction has 55509 states and 86991 transitions. [2020-07-20 06:35:49,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:35:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 55509 states and 86991 transitions. [2020-07-20 06:35:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-20 06:35:49,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:35:49,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:35:49,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-20 06:35:49,321 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:35:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:35:49,322 INFO L82 PathProgramCache]: Analyzing trace with hash -846909920, now seen corresponding path program 1 times [2020-07-20 06:35:49,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:35:49,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952325400] [2020-07-20 06:35:49,322 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:35:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:50,046 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:35:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:35:50,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:35:50,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952325400] [2020-07-20 06:35:50,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:35:50,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:35:50,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995269394] [2020-07-20 06:35:50,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:35:50,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:35:50,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:35:50,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:35:50,163 INFO L87 Difference]: Start difference. First operand 55509 states and 86991 transitions. Second operand 4 states. [2020-07-20 06:36:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:36:07,760 INFO L93 Difference]: Finished difference Result 164121 states and 256973 transitions. [2020-07-20 06:36:07,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:36:07,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2020-07-20 06:36:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:36:07,887 INFO L225 Difference]: With dead ends: 164121 [2020-07-20 06:36:07,887 INFO L226 Difference]: Without dead ends: 109760 [2020-07-20 06:36:07,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:36:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109760 states. [2020-07-20 06:36:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109760 to 55607. [2020-07-20 06:36:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55607 states. [2020-07-20 06:36:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55607 states to 55607 states and 87127 transitions. [2020-07-20 06:36:11,205 INFO L78 Accepts]: Start accepts. Automaton has 55607 states and 87127 transitions. Word has length 335 [2020-07-20 06:36:11,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:36:11,206 INFO L479 AbstractCegarLoop]: Abstraction has 55607 states and 87127 transitions. [2020-07-20 06:36:11,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:36:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 55607 states and 87127 transitions. [2020-07-20 06:36:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 06:36:11,226 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:36:11,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:36:11,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-20 06:36:11,227 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:36:11,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:36:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash -2051963875, now seen corresponding path program 1 times [2020-07-20 06:36:11,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:36:11,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151640894] [2020-07-20 06:36:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:36:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:11,908 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:36:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:12,002 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 06:36:12,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151640894] [2020-07-20 06:36:12,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:36:12,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:36:12,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890319825] [2020-07-20 06:36:12,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:36:12,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:36:12,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:36:12,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:36:12,004 INFO L87 Difference]: Start difference. First operand 55607 states and 87127 transitions. Second operand 4 states. [2020-07-20 06:36:31,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:36:31,050 INFO L93 Difference]: Finished difference Result 164377 states and 257303 transitions. [2020-07-20 06:36:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:36:31,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 336 [2020-07-20 06:36:31,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:36:31,206 INFO L225 Difference]: With dead ends: 164377 [2020-07-20 06:36:31,206 INFO L226 Difference]: Without dead ends: 110016 [2020-07-20 06:36:31,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:36:31,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110016 states. [2020-07-20 06:36:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110016 to 55715. [2020-07-20 06:36:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55715 states. [2020-07-20 06:36:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55715 states to 55715 states and 87239 transitions. [2020-07-20 06:36:34,825 INFO L78 Accepts]: Start accepts. Automaton has 55715 states and 87239 transitions. Word has length 336 [2020-07-20 06:36:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:36:34,825 INFO L479 AbstractCegarLoop]: Abstraction has 55715 states and 87239 transitions. [2020-07-20 06:36:34,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:36:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 55715 states and 87239 transitions. [2020-07-20 06:36:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 06:36:34,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:36:34,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:36:34,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-20 06:36:34,848 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:36:34,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:36:34,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1325903080, now seen corresponding path program 1 times [2020-07-20 06:36:34,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:36:34,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679109320] [2020-07-20 06:36:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:36:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:35,582 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:36:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:35,685 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 06:36:35,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679109320] [2020-07-20 06:36:35,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:36:35,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:36:35,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110839429] [2020-07-20 06:36:35,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 06:36:35,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:36:35,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 06:36:35,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:36:35,688 INFO L87 Difference]: Start difference. First operand 55715 states and 87239 transitions. Second operand 6 states. [2020-07-20 06:36:36,332 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-07-20 06:36:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:36:47,586 INFO L93 Difference]: Finished difference Result 108714 states and 170358 transitions. [2020-07-20 06:36:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 06:36:47,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 336 [2020-07-20 06:36:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:36:47,651 INFO L225 Difference]: With dead ends: 108714 [2020-07-20 06:36:47,651 INFO L226 Difference]: Without dead ends: 55715 [2020-07-20 06:36:47,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 06:36:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55715 states. [2020-07-20 06:36:51,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55715 to 55715. [2020-07-20 06:36:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55715 states. [2020-07-20 06:36:51,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55715 states to 55715 states and 86569 transitions. [2020-07-20 06:36:51,138 INFO L78 Accepts]: Start accepts. Automaton has 55715 states and 86569 transitions. Word has length 336 [2020-07-20 06:36:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:36:51,139 INFO L479 AbstractCegarLoop]: Abstraction has 55715 states and 86569 transitions. [2020-07-20 06:36:51,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 06:36:51,139 INFO L276 IsEmpty]: Start isEmpty. Operand 55715 states and 86569 transitions. [2020-07-20 06:36:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 06:36:51,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:36:51,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:36:51,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-20 06:36:51,162 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:36:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:36:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1613957357, now seen corresponding path program 1 times [2020-07-20 06:36:51,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:36:51,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933823780] [2020-07-20 06:36:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:36:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:52,032 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:36:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:36:52,163 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 06:36:52,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933823780] [2020-07-20 06:36:52,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:36:52,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 06:36:52,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670941395] [2020-07-20 06:36:52,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 06:36:52,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:36:52,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 06:36:52,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-20 06:36:52,165 INFO L87 Difference]: Start difference. First operand 55715 states and 86569 transitions. Second operand 9 states. [2020-07-20 06:36:52,811 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-07-20 06:37:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:37:12,014 INFO L93 Difference]: Finished difference Result 164828 states and 256932 transitions. [2020-07-20 06:37:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-20 06:37:12,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 336 [2020-07-20 06:37:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:37:12,155 INFO L225 Difference]: With dead ends: 164828 [2020-07-20 06:37:12,155 INFO L226 Difference]: Without dead ends: 112045 [2020-07-20 06:37:12,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-07-20 06:37:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112045 states. [2020-07-20 06:37:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112045 to 72683. [2020-07-20 06:37:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72683 states. [2020-07-20 06:37:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72683 states to 72683 states and 110493 transitions. [2020-07-20 06:37:17,678 INFO L78 Accepts]: Start accepts. Automaton has 72683 states and 110493 transitions. Word has length 336 [2020-07-20 06:37:17,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:37:17,679 INFO L479 AbstractCegarLoop]: Abstraction has 72683 states and 110493 transitions. [2020-07-20 06:37:17,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 06:37:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 72683 states and 110493 transitions. [2020-07-20 06:37:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-20 06:37:17,707 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:37:17,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:17,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-20 06:37:17,707 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:37:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:37:17,708 INFO L82 PathProgramCache]: Analyzing trace with hash -301490402, now seen corresponding path program 1 times [2020-07-20 06:37:17,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:37:17,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766519382] [2020-07-20 06:37:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:37:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:37:18,559 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:37:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:37:18,667 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 06:37:18,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766519382] [2020-07-20 06:37:18,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:37:18,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:37:18,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883955095] [2020-07-20 06:37:18,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:37:18,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:37:18,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:37:18,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:37:18,669 INFO L87 Difference]: Start difference. First operand 72683 states and 110493 transitions. Second operand 5 states. [2020-07-20 06:37:41,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:37:41,317 INFO L93 Difference]: Finished difference Result 214089 states and 325687 transitions. [2020-07-20 06:37:41,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:37:41,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 336 [2020-07-20 06:37:41,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:37:41,523 INFO L225 Difference]: With dead ends: 214089 [2020-07-20 06:37:41,523 INFO L226 Difference]: Without dead ends: 141748 [2020-07-20 06:37:41,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:37:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141748 states. [2020-07-20 06:37:54,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141748 to 141557. [2020-07-20 06:37:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141557 states. [2020-07-20 06:37:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141557 states to 141557 states and 214601 transitions. [2020-07-20 06:37:54,783 INFO L78 Accepts]: Start accepts. Automaton has 141557 states and 214601 transitions. Word has length 336 [2020-07-20 06:37:54,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:37:54,783 INFO L479 AbstractCegarLoop]: Abstraction has 141557 states and 214601 transitions. [2020-07-20 06:37:54,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:37:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand 141557 states and 214601 transitions. [2020-07-20 06:37:54,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-07-20 06:37:54,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:37:54,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:54,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-20 06:37:54,836 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:37:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:37:54,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1521744755, now seen corresponding path program 1 times [2020-07-20 06:37:54,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:37:54,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765996500] [2020-07-20 06:37:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:37:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:37:55,942 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:37:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:37:56,031 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 06:37:56,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765996500] [2020-07-20 06:37:56,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:37:56,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:37:56,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905667083] [2020-07-20 06:37:56,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:37:56,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:37:56,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:37:56,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:37:56,034 INFO L87 Difference]: Start difference. First operand 141557 states and 214601 transitions. Second operand 5 states. [2020-07-20 06:38:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:38:18,962 INFO L93 Difference]: Finished difference Result 210385 states and 318804 transitions. [2020-07-20 06:38:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:38:18,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2020-07-20 06:38:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:38:19,135 INFO L225 Difference]: With dead ends: 210385 [2020-07-20 06:38:19,136 INFO L226 Difference]: Without dead ends: 141776 [2020-07-20 06:38:19,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:38:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141776 states. [2020-07-20 06:38:32,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141776 to 140007. [2020-07-20 06:38:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140007 states. [2020-07-20 06:38:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140007 states to 140007 states and 212348 transitions. [2020-07-20 06:38:33,032 INFO L78 Accepts]: Start accepts. Automaton has 140007 states and 212348 transitions. Word has length 337 [2020-07-20 06:38:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:38:33,033 INFO L479 AbstractCegarLoop]: Abstraction has 140007 states and 212348 transitions. [2020-07-20 06:38:33,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:38:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 140007 states and 212348 transitions. [2020-07-20 06:38:33,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-07-20 06:38:33,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:38:33,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:33,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-20 06:38:33,085 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:38:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:38:33,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1681776216, now seen corresponding path program 1 times [2020-07-20 06:38:33,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:38:33,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060907193] [2020-07-20 06:38:33,087 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:38:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:38:33,759 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:38:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:38:34,111 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 06:38:34,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060907193] [2020-07-20 06:38:34,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:38:34,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:38:34,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361995700] [2020-07-20 06:38:34,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:38:34,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:38:34,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:38:34,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:38:34,113 INFO L87 Difference]: Start difference. First operand 140007 states and 212348 transitions. Second operand 4 states. [2020-07-20 06:39:10,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:39:10,253 INFO L93 Difference]: Finished difference Result 418677 states and 634855 transitions. [2020-07-20 06:39:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:39:10,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2020-07-20 06:39:10,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:39:10,611 INFO L225 Difference]: With dead ends: 418677 [2020-07-20 06:39:10,611 INFO L226 Difference]: Without dead ends: 279360 [2020-07-20 06:39:10,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:39:10,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279360 states. [2020-07-20 06:39:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279360 to 140145. [2020-07-20 06:39:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140145 states. [2020-07-20 06:39:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140145 states to 140145 states and 212500 transitions. [2020-07-20 06:39:26,600 INFO L78 Accepts]: Start accepts. Automaton has 140145 states and 212500 transitions. Word has length 340 [2020-07-20 06:39:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:39:26,600 INFO L479 AbstractCegarLoop]: Abstraction has 140145 states and 212500 transitions. [2020-07-20 06:39:26,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:39:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 140145 states and 212500 transitions. [2020-07-20 06:39:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-07-20 06:39:26,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:39:26,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:26,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-20 06:39:26,659 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:39:26,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:39:26,660 INFO L82 PathProgramCache]: Analyzing trace with hash 19768850, now seen corresponding path program 1 times [2020-07-20 06:39:26,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:39:26,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793530308] [2020-07-20 06:39:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:39:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:39:27,373 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:39:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:39:27,476 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 06:39:27,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793530308] [2020-07-20 06:39:27,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:39:27,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:39:27,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765118370] [2020-07-20 06:39:27,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:39:27,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:39:27,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:39:27,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:39:27,478 INFO L87 Difference]: Start difference. First operand 140145 states and 212500 transitions. Second operand 4 states. [2020-07-20 06:40:07,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:40:07,132 INFO L93 Difference]: Finished difference Result 411893 states and 624614 transitions. [2020-07-20 06:40:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:40:07,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2020-07-20 06:40:07,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:40:07,541 INFO L225 Difference]: With dead ends: 411893 [2020-07-20 06:40:07,541 INFO L226 Difference]: Without dead ends: 273579 [2020-07-20 06:40:07,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:40:08,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273579 states. [2020-07-20 06:40:35,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273579 to 273396. [2020-07-20 06:40:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273396 states. [2020-07-20 06:40:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273396 states to 273396 states and 413005 transitions. [2020-07-20 06:40:35,557 INFO L78 Accepts]: Start accepts. Automaton has 273396 states and 413005 transitions. Word has length 340 [2020-07-20 06:40:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:40:35,558 INFO L479 AbstractCegarLoop]: Abstraction has 273396 states and 413005 transitions. [2020-07-20 06:40:35,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:40:35,558 INFO L276 IsEmpty]: Start isEmpty. Operand 273396 states and 413005 transitions. [2020-07-20 06:40:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-07-20 06:40:35,672 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:40:35,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:35,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-20 06:40:35,673 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:40:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:40:35,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1028603420, now seen corresponding path program 1 times [2020-07-20 06:40:35,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:40:35,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226112198] [2020-07-20 06:40:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:40:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:40:36,573 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:40:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:40:36,657 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 06:40:36,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226112198] [2020-07-20 06:40:36,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:40:36,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 06:40:36,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965294648] [2020-07-20 06:40:36,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 06:40:36,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:40:36,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 06:40:36,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 06:40:36,659 INFO L87 Difference]: Start difference. First operand 273396 states and 413005 transitions. Second operand 5 states. [2020-07-20 06:41:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:41:18,371 INFO L93 Difference]: Finished difference Result 552601 states and 834095 transitions. [2020-07-20 06:41:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 06:41:18,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-07-20 06:41:18,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:41:18,775 INFO L225 Difference]: With dead ends: 552601 [2020-07-20 06:41:18,776 INFO L226 Difference]: Without dead ends: 277360 [2020-07-20 06:41:18,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:41:19,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277360 states. [2020-07-20 06:41:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277360 to 277109. [2020-07-20 06:41:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277109 states. [2020-07-20 06:41:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277109 states to 277109 states and 416222 transitions. [2020-07-20 06:41:49,262 INFO L78 Accepts]: Start accepts. Automaton has 277109 states and 416222 transitions. Word has length 341 [2020-07-20 06:41:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:41:49,263 INFO L479 AbstractCegarLoop]: Abstraction has 277109 states and 416222 transitions. [2020-07-20 06:41:49,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 06:41:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 277109 states and 416222 transitions. [2020-07-20 06:41:49,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-20 06:41:49,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:41:49,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:41:49,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-20 06:41:49,385 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:41:49,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:41:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash 39063962, now seen corresponding path program 1 times [2020-07-20 06:41:49,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:41:49,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798856572] [2020-07-20 06:41:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:41:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:41:50,114 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:41:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:41:50,767 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 06:41:50,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798856572] [2020-07-20 06:41:50,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:41:50,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:41:50,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701167215] [2020-07-20 06:41:50,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:41:50,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:41:50,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:41:50,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:41:50,769 INFO L87 Difference]: Start difference. First operand 277109 states and 416222 transitions. Second operand 4 states. [2020-07-20 06:43:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:43:01,172 INFO L93 Difference]: Finished difference Result 803777 states and 1206515 transitions. [2020-07-20 06:43:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 06:43:01,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 342 [2020-07-20 06:43:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:43:02,044 INFO L225 Difference]: With dead ends: 803777 [2020-07-20 06:43:02,045 INFO L226 Difference]: Without dead ends: 528345 [2020-07-20 06:43:02,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:43:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528345 states. [2020-07-20 06:44:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528345 to 528234. [2020-07-20 06:44:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528234 states. [2020-07-20 06:44:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528234 states to 528234 states and 788166 transitions. [2020-07-20 06:44:07,227 INFO L78 Accepts]: Start accepts. Automaton has 528234 states and 788166 transitions. Word has length 342 [2020-07-20 06:44:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:44:07,227 INFO L479 AbstractCegarLoop]: Abstraction has 528234 states and 788166 transitions. [2020-07-20 06:44:07,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 06:44:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 528234 states and 788166 transitions. [2020-07-20 06:44:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-20 06:44:07,483 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:44:07,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:44:07,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-20 06:44:07,484 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:44:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:44:07,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2088068717, now seen corresponding path program 1 times [2020-07-20 06:44:07,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:44:07,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118067387] [2020-07-20 06:44:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55005e90 [2020-07-20 06:44:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:44:08,236 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-07-20 06:44:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:44:08,358 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 06:44:08,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118067387] [2020-07-20 06:44:08,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:44:08,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 06:44:08,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597076353] [2020-07-20 06:44:08,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 06:44:08,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:44:08,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 06:44:08,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 06:44:08,360 INFO L87 Difference]: Start difference. First operand 528234 states and 788166 transitions. Second operand 4 states.