/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:56:00,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:56:00,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:56:00,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 22:56:00,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:56:00,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:56:00,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:56:00,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:56:00,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:56:00,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:56:00,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:56:00,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:56:00,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:56:00,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:56:00,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:56:00,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:56:00,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:56:00,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:56:00,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:56:00,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:56:00,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:56:00,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:56:00,668 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:56:00,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:56:00,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:56:00,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:56:00,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:56:00,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:56:00,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:56:00,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:56:00,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:56:00,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:56:00,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:56:00,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:56:00,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:56:00,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:56:00,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:56:00,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:56:00,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:56:00,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:56:00,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:56:00,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:56:00,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:56:00,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:56:00,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:00,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:56:00,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:56:00,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> 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 [2020-07-21 22:56:00,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:56:00,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:56:00,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:56:00,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:56:00,980 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:56:00,981 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2020-07-21 22:56:01,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b246f0867/b501c114379a46d6bd6ed632bd6364a9/FLAGc29130e4f [2020-07-21 22:56:01,586 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:56:01,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2020-07-21 22:56:01,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b246f0867/b501c114379a46d6bd6ed632bd6364a9/FLAGc29130e4f [2020-07-21 22:56:01,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b246f0867/b501c114379a46d6bd6ed632bd6364a9 [2020-07-21 22:56:01,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:56:01,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:56:01,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:01,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:56:01,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:56:01,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:01" (1/1) ... [2020-07-21 22:56:01,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5801f866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:01, skipping insertion in model container [2020-07-21 22:56:01,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:56:01" (1/1) ... [2020-07-21 22:56:01,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:56:01,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:56:02,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:02,451 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:56:02,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:56:02,563 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:56:02,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02 WrapperNode [2020-07-21 22:56:02,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:56:02,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:56:02,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:56:02,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:56:02,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... [2020-07-21 22:56:02,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:56:02,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:56:02,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:56:02,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:56:02,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:56:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:56:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:56:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:56:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:56:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:56:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:56:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:56:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:56:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:56:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:56:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:56:03,859 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:56:03,859 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:56:03,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:03 BoogieIcfgContainer [2020-07-21 22:56:03,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:56:03,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:56:03,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:56:03,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:56:03,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:56:01" (1/3) ... [2020-07-21 22:56:03,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b125e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:03, skipping insertion in model container [2020-07-21 22:56:03,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:56:02" (2/3) ... [2020-07-21 22:56:03,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b125e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:03, skipping insertion in model container [2020-07-21 22:56:03,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:03" (3/3) ... [2020-07-21 22:56:03,873 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label32.c [2020-07-21 22:56:03,884 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:56:03,892 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:56:03,906 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:56:03,931 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:56:03,931 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:56:03,932 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:56:03,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:56:03,932 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:56:03,932 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:56:03,933 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:56:03,933 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:56:03,955 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:56:03,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 22:56:03,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:03,970 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] [2020-07-21 22:56:03,970 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:03,976 INFO L82 PathProgramCache]: Analyzing trace with hash 2002898937, now seen corresponding path program 1 times [2020-07-21 22:56:03,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:03,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066324247] [2020-07-21 22:56:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:04,156 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:04,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:04,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:56:04,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:04,762 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:56:04,767 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:56:04,767 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:56:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:04,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:04,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066324247] [2020-07-21 22:56:04,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:04,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:56:04,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574457633] [2020-07-21 22:56:04,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:56:04,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:04,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:56:04,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:56:04,880 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:56:06,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:06,078 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:56:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:56:06,081 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2020-07-21 22:56:06,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:06,100 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:56:06,101 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:56:06,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:56:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:56:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:56:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:56:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:56:06,175 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 115 [2020-07-21 22:56:06,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:06,176 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:56:06,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:56:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:56:06,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 22:56:06,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:06,180 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:06,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:06,381 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:06,382 INFO L82 PathProgramCache]: Analyzing trace with hash 987225960, now seen corresponding path program 1 times [2020-07-21 22:56:06,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:06,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510225923] [2020-07-21 22:56:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:06,477 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:56:06,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:06,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:56:06,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:06,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:07,416 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:56:07,418 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:56:07,419 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:56:07,420 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:56:07,422 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:56:07,461 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:56:07,463 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:56:07,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:07,585 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:56:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:07,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510225923] [2020-07-21 22:56:07,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:07,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:56:07,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671811151] [2020-07-21 22:56:07,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:56:07,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:07,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:56:07,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:56:07,717 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:56:08,898 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:56:10,125 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:56:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:11,958 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 22:56:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:56:11,959 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 124 [2020-07-21 22:56:11,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:11,966 INFO L225 Difference]: With dead ends: 740 [2020-07-21 22:56:11,967 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 22:56:11,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:56:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 22:56:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 22:56:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:56:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 22:56:12,012 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 124 [2020-07-21 22:56:12,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:12,012 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 22:56:12,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:56:12,013 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 22:56:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 22:56:12,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:12,016 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:12,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:12,230 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:12,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:12,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2096686576, now seen corresponding path program 1 times [2020-07-21 22:56:12,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:12,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412480156] [2020-07-21 22:56:12,233 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:12,329 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:12,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:12,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:12,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:12,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:12,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412480156] [2020-07-21 22:56:12,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:12,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:12,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178669560] [2020-07-21 22:56:12,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:12,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:12,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:12,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:12,384 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 3 states. [2020-07-21 22:56:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:12,989 INFO L93 Difference]: Finished difference Result 1075 states and 1497 transitions. [2020-07-21 22:56:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:12,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-21 22:56:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:12,995 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 22:56:12,995 INFO L226 Difference]: Without dead ends: 688 [2020-07-21 22:56:12,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:12,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-07-21 22:56:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 684. [2020-07-21 22:56:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-07-21 22:56:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 860 transitions. [2020-07-21 22:56:13,027 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 860 transitions. Word has length 128 [2020-07-21 22:56:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:13,028 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 860 transitions. [2020-07-21 22:56:13,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 860 transitions. [2020-07-21 22:56:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 22:56:13,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:13,034 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:13,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:13,248 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:13,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:13,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1385746584, now seen corresponding path program 1 times [2020-07-21 22:56:13,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:13,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324236004] [2020-07-21 22:56:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:13,367 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:13,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:13,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:13,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:56:13,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:13,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324236004] [2020-07-21 22:56:13,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:13,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:13,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081603314] [2020-07-21 22:56:13,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:13,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:13,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:13,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:13,435 INFO L87 Difference]: Start difference. First operand 684 states and 860 transitions. Second operand 3 states. [2020-07-21 22:56:14,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:14,034 INFO L93 Difference]: Finished difference Result 1658 states and 2156 transitions. [2020-07-21 22:56:14,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:14,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-07-21 22:56:14,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:14,046 INFO L225 Difference]: With dead ends: 1658 [2020-07-21 22:56:14,046 INFO L226 Difference]: Without dead ends: 980 [2020-07-21 22:56:14,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:14,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-07-21 22:56:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2020-07-21 22:56:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2020-07-21 22:56:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1212 transitions. [2020-07-21 22:56:14,080 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1212 transitions. Word has length 150 [2020-07-21 22:56:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:14,080 INFO L479 AbstractCegarLoop]: Abstraction has 980 states and 1212 transitions. [2020-07-21 22:56:14,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1212 transitions. [2020-07-21 22:56:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 22:56:14,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:14,085 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:14,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:14,300 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:14,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1388378759, now seen corresponding path program 1 times [2020-07-21 22:56:14,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:14,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679754159] [2020-07-21 22:56:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:14,404 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:56:14,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:14,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:14,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:14,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:56:14,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679754159] [2020-07-21 22:56:14,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:56:14,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:56:14,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999002016] [2020-07-21 22:56:14,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:56:14,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:14,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:56:14,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:14,445 INFO L87 Difference]: Start difference. First operand 980 states and 1212 transitions. Second operand 3 states. [2020-07-21 22:56:15,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:15,066 INFO L93 Difference]: Finished difference Result 2248 states and 2875 transitions. [2020-07-21 22:56:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:56:15,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-21 22:56:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:15,083 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 22:56:15,083 INFO L226 Difference]: Without dead ends: 1274 [2020-07-21 22:56:15,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:56:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2020-07-21 22:56:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1272. [2020-07-21 22:56:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-07-21 22:56:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1613 transitions. [2020-07-21 22:56:15,131 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1613 transitions. Word has length 149 [2020-07-21 22:56:15,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:15,132 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1613 transitions. [2020-07-21 22:56:15,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:56:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1613 transitions. [2020-07-21 22:56:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 22:56:15,138 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:15,139 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:15,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:15,353 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:15,354 INFO L82 PathProgramCache]: Analyzing trace with hash -627802332, now seen corresponding path program 1 times [2020-07-21 22:56:15,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:15,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864168505] [2020-07-21 22:56:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:15,440 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:15,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:15,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:15,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:15,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:15,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864168505] [2020-07-21 22:56:15,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:15,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:15,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286734134] [2020-07-21 22:56:15,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:15,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:15,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:15,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:15,560 INFO L87 Difference]: Start difference. First operand 1272 states and 1613 transitions. Second operand 7 states. [2020-07-21 22:56:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:16,892 INFO L93 Difference]: Finished difference Result 4698 states and 6235 transitions. [2020-07-21 22:56:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:56:16,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-21 22:56:16,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:16,913 INFO L225 Difference]: With dead ends: 4698 [2020-07-21 22:56:16,913 INFO L226 Difference]: Without dead ends: 3432 [2020-07-21 22:56:16,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2020-07-21 22:56:17,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3428. [2020-07-21 22:56:17,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-07-21 22:56:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4376 transitions. [2020-07-21 22:56:17,039 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4376 transitions. Word has length 156 [2020-07-21 22:56:17,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:17,039 INFO L479 AbstractCegarLoop]: Abstraction has 3428 states and 4376 transitions. [2020-07-21 22:56:17,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4376 transitions. [2020-07-21 22:56:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 22:56:17,049 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:17,049 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:17,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:17,263 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:17,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:17,263 INFO L82 PathProgramCache]: Analyzing trace with hash 712468216, now seen corresponding path program 1 times [2020-07-21 22:56:17,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:17,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075649810] [2020-07-21 22:56:17,264 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:17,345 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:17,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:17,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:56:17,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:17,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:56:17,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075649810] [2020-07-21 22:56:17,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:17,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:17,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729726584] [2020-07-21 22:56:17,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:17,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:17,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:17,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:17,458 INFO L87 Difference]: Start difference. First operand 3428 states and 4376 transitions. Second operand 7 states. [2020-07-21 22:56:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:18,407 INFO L93 Difference]: Finished difference Result 9000 states and 12205 transitions. [2020-07-21 22:56:18,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:56:18,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-07-21 22:56:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:18,445 INFO L225 Difference]: With dead ends: 9000 [2020-07-21 22:56:18,445 INFO L226 Difference]: Without dead ends: 5581 [2020-07-21 22:56:18,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2020-07-21 22:56:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5516. [2020-07-21 22:56:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5516 states. [2020-07-21 22:56:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5516 states to 5516 states and 7012 transitions. [2020-07-21 22:56:18,613 INFO L78 Accepts]: Start accepts. Automaton has 5516 states and 7012 transitions. Word has length 166 [2020-07-21 22:56:18,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:18,614 INFO L479 AbstractCegarLoop]: Abstraction has 5516 states and 7012 transitions. [2020-07-21 22:56:18,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:18,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5516 states and 7012 transitions. [2020-07-21 22:56:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 22:56:18,626 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:18,626 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:18,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:18,840 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:18,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:18,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1056923084, now seen corresponding path program 1 times [2020-07-21 22:56:18,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:18,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339372940] [2020-07-21 22:56:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:18,948 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:18,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:18,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:18,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:56:19,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:56:19,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339372940] [2020-07-21 22:56:19,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:19,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:56:19,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806892322] [2020-07-21 22:56:19,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:56:19,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:19,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:56:19,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:56:19,082 INFO L87 Difference]: Start difference. First operand 5516 states and 7012 transitions. Second operand 6 states. [2020-07-21 22:56:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:20,123 INFO L93 Difference]: Finished difference Result 9886 states and 12589 transitions. [2020-07-21 22:56:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:56:20,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-21 22:56:20,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:20,145 INFO L225 Difference]: With dead ends: 9886 [2020-07-21 22:56:20,146 INFO L226 Difference]: Without dead ends: 4059 [2020-07-21 22:56:20,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 352 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2020-07-21 22:56:20,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 4053. [2020-07-21 22:56:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4053 states. [2020-07-21 22:56:20,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4053 states to 4053 states and 4782 transitions. [2020-07-21 22:56:20,262 INFO L78 Accepts]: Start accepts. Automaton has 4053 states and 4782 transitions. Word has length 178 [2020-07-21 22:56:20,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:20,262 INFO L479 AbstractCegarLoop]: Abstraction has 4053 states and 4782 transitions. [2020-07-21 22:56:20,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:56:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4053 states and 4782 transitions. [2020-07-21 22:56:20,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-21 22:56:20,273 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:20,273 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:20,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:20,487 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:20,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash -337374575, now seen corresponding path program 1 times [2020-07-21 22:56:20,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:20,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931766396] [2020-07-21 22:56:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:20,597 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:56:20,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:20,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:20,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 22:56:20,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 123 proven. 18 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-07-21 22:56:20,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931766396] [2020-07-21 22:56:20,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:20,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:20,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070721948] [2020-07-21 22:56:20,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:20,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:20,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:20,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:20,736 INFO L87 Difference]: Start difference. First operand 4053 states and 4782 transitions. Second operand 7 states. [2020-07-21 22:56:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:21,331 INFO L93 Difference]: Finished difference Result 6853 states and 8096 transitions. [2020-07-21 22:56:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:56:21,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-07-21 22:56:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:21,347 INFO L225 Difference]: With dead ends: 6853 [2020-07-21 22:56:21,347 INFO L226 Difference]: Without dead ends: 3269 [2020-07-21 22:56:21,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 430 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:56:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2020-07-21 22:56:21,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3121. [2020-07-21 22:56:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3121 states. [2020-07-21 22:56:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3620 transitions. [2020-07-21 22:56:21,424 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3620 transitions. Word has length 218 [2020-07-21 22:56:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:21,425 INFO L479 AbstractCegarLoop]: Abstraction has 3121 states and 3620 transitions. [2020-07-21 22:56:21,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3620 transitions. [2020-07-21 22:56:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-21 22:56:21,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:56:21,433 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:56:21,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:21,649 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:56:21,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:56:21,649 INFO L82 PathProgramCache]: Analyzing trace with hash -715830986, now seen corresponding path program 1 times [2020-07-21 22:56:21,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:56:21,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657605701] [2020-07-21 22:56:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:21,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:56:21,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:56:21,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:56:21,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:56:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 22:56:21,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:56:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 133 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 22:56:21,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657605701] [2020-07-21 22:56:21,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:56:21,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:56:21,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81062655] [2020-07-21 22:56:21,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:56:21,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:56:21,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:56:21,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:56:21,914 INFO L87 Difference]: Start difference. First operand 3121 states and 3620 transitions. Second operand 7 states. [2020-07-21 22:56:22,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:56:22,816 INFO L93 Difference]: Finished difference Result 5858 states and 6777 transitions. [2020-07-21 22:56:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:56:22,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-07-21 22:56:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:56:22,817 INFO L225 Difference]: With dead ends: 5858 [2020-07-21 22:56:22,817 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:56:22,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:56:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:56:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:56:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:56:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:56:22,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2020-07-21 22:56:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:56:22,828 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:56:22,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:56:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:56:22,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:56:23,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:56:23,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:56:24,510 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 96 [2020-07-21 22:56:24,723 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-07-21 22:56:24,934 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-07-21 22:56:24,938 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:24,938 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:56:24,938 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:24,939 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,939 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,939 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,939 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,939 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,940 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:56:24,940 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:56:24,940 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:56:24,940 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:56:24,941 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:56:24,942 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:56:24,943 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,944 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 499) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:56:24,945 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,946 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:56:24,947 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,948 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:56:24,949 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:24,950 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:56:24,951 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:56:24,952 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:56:24,953 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:56:24,954 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:56:24,955 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:56:24,956 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:56:24,956 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:56:24,956 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,956 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,956 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse15 (not (= 1 ~a21~0)))) (let ((.cse10 (<= ~a17~0 |old(~a17~0)|)) (.cse3 (<= ~a28~0 10)) (.cse2 (not (<= 10 |old(~a28~0)|))) (.cse4 (<= 10 ~a28~0)) (.cse8 (not (<= 9 |old(~a28~0)|))) (.cse12 (<= 9 ~a28~0)) (.cse16 (not (<= |old(~a11~0)| 0))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse9 (not (= 1 |old(~a25~0)|))) (.cse6 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse15)) (.cse13 (= 1 ~a25~0)) (.cse1 (not (<= |old(~a28~0)| 10))) (.cse17 (not (<= 8 |old(~a17~0)|))) (.cse14 (not (<= |old(~a17~0)| 8))) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse7 (= ~a25~0 |old(~a25~0)|))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7)) (or .cse1 .cse8 .cse9 (and .cse10 .cse11 .cse5 .cse6 .cse12 .cse13) .cse14) (or .cse0 .cse1 .cse9 (and .cse10 .cse11 .cse5 .cse6 .cse13) .cse14) (or .cse1 (not (<= |old(~a17~0)| 7)) .cse2 (and .cse10 .cse3 .cse4 .cse5 .cse6 .cse7)) (or .cse0 (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (= 7 ~a28~0) (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse15 .cse16) (or .cse1 .cse9 .cse2 .cse4 .cse14) (or .cse1 .cse8 .cse17 .cse14 .cse12) (or (<= ~a11~0 |old(~a11~0)|) .cse1 .cse17 .cse14 .cse15 .cse16) (or .cse0 .cse17 .cse9 (and .cse11 .cse18 .cse19 .cse5 (<= 11 ~a28~0) .cse6 .cse13) (not (<= 11 |old(~a28~0)|)) .cse14) (or .cse1 .cse17 .cse14 (and .cse11 .cse18 .cse19 .cse5 .cse7))))) [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:56:24,957 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:56:24,958 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:56:24,959 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:24,960 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:56:24,961 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:56:24,962 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:56:24,963 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:56:24,964 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:56:24,964 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:56:24,964 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:56:24,964 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:56:24,964 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:56:24,964 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:56:24,965 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 8)) (.cse1 (<= 8 ~a17~0)) (.cse3 (= 1 ~a25~0)) (.cse0 (= 1 ~a19~0)) (.cse4 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse6 (<= 10 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (and .cse4 .cse5 (<= 9 ~a28~0) .cse3) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse2 .cse1 .cse4) (and .cse0 .cse4 .cse5 .cse3) (not (= 1 ~a21~0)) (and .cse0 .cse4 .cse6) (not (<= |old(~a11~0)| 0)) (and .cse4 .cse5 .cse6))) [2020-07-21 22:56:24,965 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:24,965 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:56:24,965 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 8)) (.cse1 (<= 8 ~a17~0)) (.cse3 (= 1 ~a25~0)) (.cse0 (= 1 ~a19~0)) (.cse4 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse6 (<= 10 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (and .cse4 .cse5 (<= 9 ~a28~0) .cse3) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse2 .cse1 .cse4) (and .cse0 .cse4 .cse5 .cse3) (not (= 1 ~a21~0)) (and .cse0 .cse4 .cse6) (not (<= |old(~a11~0)| 0)) (and .cse4 .cse5 .cse6))) [2020-07-21 22:56:24,965 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:56:24,965 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:56:24,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:56:24 BoogieIcfgContainer [2020-07-21 22:56:24,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:56:24,987 INFO L168 Benchmark]: Toolchain (without parser) took 23113.61 ms. Allocated memory was 138.4 MB in the beginning and 510.7 MB in the end (delta: 372.2 MB). Free memory was 101.9 MB in the beginning and 201.2 MB in the end (delta: -99.4 MB). Peak memory consumption was 394.7 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:24,988 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:56:24,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.85 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 101.4 MB in the beginning and 170.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:24,989 INFO L168 Benchmark]: Boogie Preprocessor took 123.04 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:24,990 INFO L168 Benchmark]: RCFGBuilder took 1177.53 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.8 MB in the beginning and 181.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:24,991 INFO L168 Benchmark]: TraceAbstraction took 21118.82 ms. Allocated memory was 237.0 MB in the beginning and 510.7 MB in the end (delta: 273.7 MB). Free memory was 181.1 MB in the beginning and 201.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 375.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:56:24,995 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.85 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 101.4 MB in the beginning and 170.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.04 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 165.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1177.53 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.8 MB in the beginning and 181.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21118.82 ms. Allocated memory was 237.0 MB in the beginning and 510.7 MB in the end (delta: 273.7 MB). Free memory was 181.1 MB in the beginning and 201.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 375.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 499]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || (((1 == a19 && 8 <= a17) && a17 <= 8) && 1 == a25)) || !(8 == \old(a17))) || (((a28 <= 10 && a17 <= 7) && 9 <= a28) && 1 == a25)) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || ((a17 <= 8 && 8 <= a17) && a28 <= 10)) || (((1 == a19 && a28 <= 10) && a17 <= 7) && 1 == a25)) || !(1 == a21)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || !(\old(a11) <= 0)) || ((a28 <= 10 && a17 <= 7) && 10 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.1s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1073 SDtfs, 4925 SDslu, 825 SDs, 0 SdLazy, 8874 SolverSat, 1225 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2698 GetRequests, 2600 SyntacticMatches, 7 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5516occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 261 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 160 PreInvPairs, 214 NumberOfFragments, 629 HoareAnnotationTreeSize, 160 FomulaSimplifications, 2042 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1837 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1602 NumberOfCodeBlocks, 1024 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2646 ConstructedInterpolants, 0 QuantifiedInterpolants, 1637207 SizeOfPredicates, 41 NumberOfNonLiveVariables, 3378 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1269/1323 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...