/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_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:24:25,489 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:24:25,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:24:25,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:24:25,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:24:25,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:24:25,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:24:25,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:24:25,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:24:25,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:24:25,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:24:25,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:24:25,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:24:25,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:24:25,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:24:25,536 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 01:24:25,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:24:25,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:24:25,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:24:25,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:24:25,552 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:24:25,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:24:25,553 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:24:25,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:24:25,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:24:25,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:24:25,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:24:25,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:24:25,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:24:25,554 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:24:25,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:24:25,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:24:25,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:24:25,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:24:25,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:24:25,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:24:25,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:24:25,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:24:25,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:24:25,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:24:25,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:24:25,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:24:25,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:25,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:24:25,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:24:25,558 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 01:24:25,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:24:25,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:24:25,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:24:25,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:24:25,847 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:24:25,847 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label25.c [2020-07-21 01:24:25,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed59d5c9/9792529180e34454acfa42b8124d9b28/FLAGc199c2e4b [2020-07-21 01:24:26,440 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:24:26,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label25.c [2020-07-21 01:24:26,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed59d5c9/9792529180e34454acfa42b8124d9b28/FLAGc199c2e4b [2020-07-21 01:24:26,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed59d5c9/9792529180e34454acfa42b8124d9b28 [2020-07-21 01:24:26,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:24:26,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:24:26,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:26,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:24:26,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:24:26,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:26" (1/1) ... [2020-07-21 01:24:26,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ece8b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:26, skipping insertion in model container [2020-07-21 01:24:26,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:26" (1/1) ... [2020-07-21 01:24:26,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:24:26,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:24:27,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:27,157 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:24:27,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:27,455 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:24:27,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27 WrapperNode [2020-07-21 01:24:27,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:27,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:24:27,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:24:27,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:24:27,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... [2020-07-21 01:24:27,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:24:27,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:24:27,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:24:27,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:24:27,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:24:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:24:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:24:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:24:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:24:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:24:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:24:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:24:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:24:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:24:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:24:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:24:28,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:24:28,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:24:28,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:28 BoogieIcfgContainer [2020-07-21 01:24:28,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:24:28,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:24:28,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:24:28,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:24:28,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:24:26" (1/3) ... [2020-07-21 01:24:28,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a207523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:28, skipping insertion in model container [2020-07-21 01:24:28,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:27" (2/3) ... [2020-07-21 01:24:28,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a207523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:28, skipping insertion in model container [2020-07-21 01:24:28,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:28" (3/3) ... [2020-07-21 01:24:28,882 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label25.c [2020-07-21 01:24:28,894 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:24:28,902 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:24:28,917 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:24:28,944 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:24:28,944 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:24:28,944 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:24:28,945 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:24:28,945 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:24:28,945 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:24:28,945 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:24:28,945 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:24:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:24:28,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 01:24:28,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:29,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:29,001 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:29,009 INFO L82 PathProgramCache]: Analyzing trace with hash 167533094, now seen corresponding path program 1 times [2020-07-21 01:24:29,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:29,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056028938] [2020-07-21 01:24:29,020 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 01:24:29,228 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:29,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:29,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:24:29,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:29,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:29,873 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:24:29,873 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:24:29,989 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 01:24:29,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:29,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056028938] [2020-07-21 01:24:29,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:29,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:24:29,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599297390] [2020-07-21 01:24:29,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:24:29,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:30,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:24:30,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:24:30,015 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:24:31,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:31,303 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:24:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:24:31,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-07-21 01:24:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:31,319 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:24:31,319 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:24:31,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 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 01:24:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:24:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:24:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:24:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:24:31,403 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 140 [2020-07-21 01:24:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:31,404 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:24:31,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:24:31,405 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:24:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 01:24:31,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:31,417 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, 1, 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 01:24:31,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:31,634 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:31,635 INFO L82 PathProgramCache]: Analyzing trace with hash -2141178473, now seen corresponding path program 1 times [2020-07-21 01:24:31,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:31,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314162739] [2020-07-21 01:24:31,636 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 01:24:31,760 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:31,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:31,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:24:31,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:32,255 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 01:24:32,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:32,670 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:24:32,672 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:24:32,674 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:24:32,675 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:24:32,676 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:32,698 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:24:32,698 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:32,742 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:32,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:32,953 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 01:24:32,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314162739] [2020-07-21 01:24:32,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:32,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:32,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443420281] [2020-07-21 01:24:32,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:32,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:32,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:32,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:32,957 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:24:34,101 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:24:35,349 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:24:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:37,080 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 01:24:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:24:37,081 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 149 [2020-07-21 01:24:37,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:37,089 INFO L225 Difference]: With dead ends: 740 [2020-07-21 01:24:37,089 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 01:24:37,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 275 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:24:37,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 01:24:37,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 01:24:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:24:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 01:24:37,132 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 149 [2020-07-21 01:24:37,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:37,132 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 01:24:37,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:24:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 01:24:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 01:24:37,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:37,152 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, 1, 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 01:24:37,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:37,366 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:37,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1220941839, now seen corresponding path program 1 times [2020-07-21 01:24:37,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:37,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526067736] [2020-07-21 01:24:37,368 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 01:24:37,469 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:37,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:37,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 01:24:37,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:38,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:38,463 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 01:24:38,470 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:24:38,471 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:24:38,472 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:24:38,473 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:24:38,474 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:24:38,496 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 01:24:38,496 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:38,529 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:38,595 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:38,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526067736] [2020-07-21 01:24:38,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:38,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:38,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834229377] [2020-07-21 01:24:38,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:38,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:38,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:38,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:38,702 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 21 states. [2020-07-21 01:24:40,003 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 01:24:41,881 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:24:42,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:42,894 INFO L93 Difference]: Finished difference Result 902 states and 1244 transitions. [2020-07-21 01:24:42,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 01:24:42,895 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 153 [2020-07-21 01:24:42,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:42,907 INFO L225 Difference]: With dead ends: 902 [2020-07-21 01:24:42,908 INFO L226 Difference]: Without dead ends: 515 [2020-07-21 01:24:42,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 01:24:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-07-21 01:24:42,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 478. [2020-07-21 01:24:42,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 01:24:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 623 transitions. [2020-07-21 01:24:42,972 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 623 transitions. Word has length 153 [2020-07-21 01:24:42,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:42,974 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 623 transitions. [2020-07-21 01:24:42,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:24:42,975 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 623 transitions. [2020-07-21 01:24:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 01:24:42,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:42,977 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, 1, 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 01:24:43,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:43,196 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:43,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:43,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1868563865, now seen corresponding path program 1 times [2020-07-21 01:24:43,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:43,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612467560] [2020-07-21 01:24:43,199 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 01:24:43,385 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:43,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:43,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 01:24:43,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:43,450 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:43,452 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:24:43,452 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:24:43,609 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 01:24:43,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:43,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612467560] [2020-07-21 01:24:43,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:43,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:24:43,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010509595] [2020-07-21 01:24:43,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:24:43,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:43,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:24:43,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:24:43,613 INFO L87 Difference]: Start difference. First operand 478 states and 623 transitions. Second operand 4 states. [2020-07-21 01:24:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:44,312 INFO L93 Difference]: Finished difference Result 1039 states and 1410 transitions. [2020-07-21 01:24:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:24:44,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2020-07-21 01:24:44,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:44,317 INFO L225 Difference]: With dead ends: 1039 [2020-07-21 01:24:44,317 INFO L226 Difference]: Without dead ends: 478 [2020-07-21 01:24:44,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:24:44,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-21 01:24:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-07-21 01:24:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 01:24:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 620 transitions. [2020-07-21 01:24:44,336 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 620 transitions. Word has length 175 [2020-07-21 01:24:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:44,337 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 620 transitions. [2020-07-21 01:24:44,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:24:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 620 transitions. [2020-07-21 01:24:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 01:24:44,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:44,340 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, 1, 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 01:24:44,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:44,554 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:44,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:44,555 INFO L82 PathProgramCache]: Analyzing trace with hash 564024486, now seen corresponding path program 1 times [2020-07-21 01:24:44,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:44,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794211986] [2020-07-21 01:24:44,556 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 01:24:44,650 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:44,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:44,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:24:44,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:45,155 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 6, 2, 2, 1] term [2020-07-21 01:24:45,156 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 01:24:45,340 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 01:24:45,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:45,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794211986] [2020-07-21 01:24:45,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:45,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-21 01:24:45,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161039206] [2020-07-21 01:24:45,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:24:45,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:45,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:24:45,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:24:45,343 INFO L87 Difference]: Start difference. First operand 478 states and 620 transitions. Second operand 12 states. [2020-07-21 01:24:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:47,101 INFO L93 Difference]: Finished difference Result 1222 states and 1718 transitions. [2020-07-21 01:24:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 01:24:47,102 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 174 [2020-07-21 01:24:47,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:47,106 INFO L225 Difference]: With dead ends: 1222 [2020-07-21 01:24:47,106 INFO L226 Difference]: Without dead ends: 644 [2020-07-21 01:24:47,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-21 01:24:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2020-07-21 01:24:47,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-07-21 01:24:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 787 transitions. [2020-07-21 01:24:47,128 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 787 transitions. Word has length 174 [2020-07-21 01:24:47,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:47,129 INFO L479 AbstractCegarLoop]: Abstraction has 640 states and 787 transitions. [2020-07-21 01:24:47,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:24:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 787 transitions. [2020-07-21 01:24:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 01:24:47,132 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:47,133 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, 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, 1, 1, 1, 1] [2020-07-21 01:24:47,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:47,347 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 451911420, now seen corresponding path program 1 times [2020-07-21 01:24:47,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:47,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203878647] [2020-07-21 01:24:47,350 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 01:24:47,448 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:47,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:47,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 56 conjunts are in the unsatisfiable core [2020-07-21 01:24:47,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:48,049 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 7, 1] term [2020-07-21 01:24:48,050 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 6 disjuncts [2020-07-21 01:24:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:48,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:48,819 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2020-07-21 01:24:48,988 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-07-21 01:24:48,991 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:24:48,994 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:49,220 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-07-21 01:24:49,322 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:24:49,322 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:24:49,323 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:24:49,324 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:49,615 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-07-21 01:24:49,617 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:24:49,617 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:49,665 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:24:49,765 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:24:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:49,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203878647] [2020-07-21 01:24:49,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:49,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 26 [2020-07-21 01:24:49,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6579597] [2020-07-21 01:24:49,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-21 01:24:49,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:49,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-21 01:24:49,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-07-21 01:24:49,997 INFO L87 Difference]: Start difference. First operand 640 states and 787 transitions. Second operand 26 states. [2020-07-21 01:24:52,402 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-07-21 01:24:52,647 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-07-21 01:24:53,294 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-07-21 01:24:54,250 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-07-21 01:24:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:56,035 INFO L93 Difference]: Finished difference Result 1758 states and 2353 transitions. [2020-07-21 01:24:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-21 01:24:56,037 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 191 [2020-07-21 01:24:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:56,042 INFO L225 Difference]: With dead ends: 1758 [2020-07-21 01:24:56,042 INFO L226 Difference]: Without dead ends: 936 [2020-07-21 01:24:56,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 352 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=577, Invalid=1679, Unknown=0, NotChecked=0, Total=2256 [2020-07-21 01:24:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2020-07-21 01:24:56,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 878. [2020-07-21 01:24:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-21 01:24:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1054 transitions. [2020-07-21 01:24:56,074 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1054 transitions. Word has length 191 [2020-07-21 01:24:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:56,075 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1054 transitions. [2020-07-21 01:24:56,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-21 01:24:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1054 transitions. [2020-07-21 01:24:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-07-21 01:24:56,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:56,079 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, 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, 1, 1] [2020-07-21 01:24:56,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:56,294 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash -900107120, now seen corresponding path program 1 times [2020-07-21 01:24:56,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:56,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57861909] [2020-07-21 01:24:56,296 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 01:24:56,390 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:56,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:56,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-21 01:24:56,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:56,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:57,444 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:24:57,445 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:24:57,446 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:24:57,446 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:24:57,447 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:24:57,480 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 01:24:57,481 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:57,526 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:24:57,618 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:24:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:57,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57861909] [2020-07-21 01:24:57,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:57,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:57,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194549981] [2020-07-21 01:24:57,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:57,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:57,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:57,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:57,812 INFO L87 Difference]: Start difference. First operand 878 states and 1054 transitions. Second operand 21 states. [2020-07-21 01:24:59,890 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-07-21 01:25:00,355 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 01:25:01,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:01,553 INFO L93 Difference]: Finished difference Result 2042 states and 2459 transitions. [2020-07-21 01:25:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 01:25:01,554 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 197 [2020-07-21 01:25:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:01,562 INFO L225 Difference]: With dead ends: 2042 [2020-07-21 01:25:01,562 INFO L226 Difference]: Without dead ends: 1158 [2020-07-21 01:25:01,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 371 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 01:25:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2020-07-21 01:25:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 952. [2020-07-21 01:25:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2020-07-21 01:25:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1131 transitions. [2020-07-21 01:25:01,611 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1131 transitions. Word has length 197 [2020-07-21 01:25:01,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:01,612 INFO L479 AbstractCegarLoop]: Abstraction has 952 states and 1131 transitions. [2020-07-21 01:25:01,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:25:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1131 transitions. [2020-07-21 01:25:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 01:25:01,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:01,617 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 01:25:01,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:01,833 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1386906956, now seen corresponding path program 1 times [2020-07-21 01:25:01,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:01,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935550441] [2020-07-21 01:25:01,835 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 01:25:01,937 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:01,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:01,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-21 01:25:01,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:02,507 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:02,507 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:25:02,508 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:25:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:25:02,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:02,928 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 29 [2020-07-21 01:25:03,261 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:25:03,262 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:03,262 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:25:03,263 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:03,264 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:03,266 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:25:03,266 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:25:03,267 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:25:03,269 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:03,270 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:03,271 INFO L501 QuantifierPusher]: Distributing 11 disjuncts over 2 conjuncts [2020-07-21 01:25:03,272 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:03,272 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:03,273 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:03,274 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:03,275 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:25:03,276 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:03,653 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-07-21 01:25:03,655 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 2, 2, 4, 1] term [2020-07-21 01:25:03,656 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:03,712 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:25:03,716 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:25:03,811 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:03,858 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:03,882 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:25:04,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935550441] [2020-07-21 01:25:04,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:04,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2020-07-21 01:25:04,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696172388] [2020-07-21 01:25:04,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-21 01:25:04,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:04,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-21 01:25:04,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2020-07-21 01:25:04,101 INFO L87 Difference]: Start difference. First operand 952 states and 1131 transitions. Second operand 24 states. [2020-07-21 01:25:05,667 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-07-21 01:25:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:08,183 INFO L93 Difference]: Finished difference Result 2248 states and 2849 transitions. [2020-07-21 01:25:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-21 01:25:08,186 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 233 [2020-07-21 01:25:08,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:08,194 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 01:25:08,194 INFO L226 Difference]: Without dead ends: 1302 [2020-07-21 01:25:08,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 440 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=391, Invalid=1091, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 01:25:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-07-21 01:25:08,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1253. [2020-07-21 01:25:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-07-21 01:25:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1503 transitions. [2020-07-21 01:25:08,241 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1503 transitions. Word has length 233 [2020-07-21 01:25:08,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:08,241 INFO L479 AbstractCegarLoop]: Abstraction has 1253 states and 1503 transitions. [2020-07-21 01:25:08,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-21 01:25:08,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1503 transitions. [2020-07-21 01:25:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-21 01:25:08,246 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:08,247 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 01:25:08,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:08,463 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1019662530, now seen corresponding path program 1 times [2020-07-21 01:25:08,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:08,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593761423] [2020-07-21 01:25:08,465 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 01:25:08,593 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:25:08,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:08,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:08,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:25:08,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:08,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593761423] [2020-07-21 01:25:08,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:08,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:25:08,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031117580] [2020-07-21 01:25:08,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:25:08,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:08,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:25:08,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:25:08,645 INFO L87 Difference]: Start difference. First operand 1253 states and 1503 transitions. Second operand 3 states. [2020-07-21 01:25:09,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:09,293 INFO L93 Difference]: Finished difference Result 2943 states and 3679 transitions. [2020-07-21 01:25:09,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:25:09,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-07-21 01:25:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:09,302 INFO L225 Difference]: With dead ends: 2943 [2020-07-21 01:25:09,302 INFO L226 Difference]: Without dead ends: 1696 [2020-07-21 01:25:09,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 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 01:25:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-07-21 01:25:09,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1694. [2020-07-21 01:25:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2020-07-21 01:25:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2093 transitions. [2020-07-21 01:25:09,348 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2093 transitions. Word has length 246 [2020-07-21 01:25:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:09,348 INFO L479 AbstractCegarLoop]: Abstraction has 1694 states and 2093 transitions. [2020-07-21 01:25:09,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:25:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2093 transitions. [2020-07-21 01:25:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-07-21 01:25:09,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:09,356 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 01:25:09,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:09,570 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:09,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:09,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1822792575, now seen corresponding path program 1 times [2020-07-21 01:25:09,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:09,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267682554] [2020-07-21 01:25:09,572 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 01:25:09,674 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:09,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:09,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:09,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:09,733 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:25:09,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:25:09,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267682554] [2020-07-21 01:25:09,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:09,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:09,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162064537] [2020-07-21 01:25:09,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:09,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:09,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:09,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:09,846 INFO L87 Difference]: Start difference. First operand 1694 states and 2093 transitions. Second operand 7 states. [2020-07-21 01:25:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:11,257 INFO L93 Difference]: Finished difference Result 4024 states and 5082 transitions. [2020-07-21 01:25:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:25:11,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-07-21 01:25:11,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:11,267 INFO L225 Difference]: With dead ends: 4024 [2020-07-21 01:25:11,268 INFO L226 Difference]: Without dead ends: 1961 [2020-07-21 01:25:11,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 505 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 01:25:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2020-07-21 01:25:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1760. [2020-07-21 01:25:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1760 states. [2020-07-21 01:25:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2109 transitions. [2020-07-21 01:25:11,327 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2109 transitions. Word has length 255 [2020-07-21 01:25:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:11,328 INFO L479 AbstractCegarLoop]: Abstraction has 1760 states and 2109 transitions. [2020-07-21 01:25:11,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2109 transitions. [2020-07-21 01:25:11,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 01:25:11,336 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:11,336 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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, 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 01:25:11,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:11,551 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:11,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1169255761, now seen corresponding path program 1 times [2020-07-21 01:25:11,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:11,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116200751] [2020-07-21 01:25:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:11,664 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:11,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:11,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:25:11,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-21 01:25:11,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 183 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-07-21 01:25:11,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116200751] [2020-07-21 01:25:11,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:11,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:11,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617690033] [2020-07-21 01:25:11,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:11,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:11,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:11,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:11,834 INFO L87 Difference]: Start difference. First operand 1760 states and 2109 transitions. Second operand 7 states. [2020-07-21 01:25:12,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:12,681 INFO L93 Difference]: Finished difference Result 4109 states and 5001 transitions. [2020-07-21 01:25:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:25:12,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 282 [2020-07-21 01:25:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:12,695 INFO L225 Difference]: With dead ends: 4109 [2020-07-21 01:25:12,695 INFO L226 Difference]: Without dead ends: 2354 [2020-07-21 01:25:12,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 560 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 01:25:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2020-07-21 01:25:12,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2340. [2020-07-21 01:25:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2340 states. [2020-07-21 01:25:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 2748 transitions. [2020-07-21 01:25:12,750 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 2748 transitions. Word has length 282 [2020-07-21 01:25:12,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:12,750 INFO L479 AbstractCegarLoop]: Abstraction has 2340 states and 2748 transitions. [2020-07-21 01:25:12,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 2748 transitions. [2020-07-21 01:25:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-07-21 01:25:12,760 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:12,760 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 01:25:12,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:12,974 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:12,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:12,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1449858572, now seen corresponding path program 1 times [2020-07-21 01:25:12,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:12,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006951389] [2020-07-21 01:25:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:13,117 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:13,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:13,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:13,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 01:25:13,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-07-21 01:25:13,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006951389] [2020-07-21 01:25:13,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:13,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:25:13,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042403176] [2020-07-21 01:25:13,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:25:13,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:13,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:25:13,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:25:13,258 INFO L87 Difference]: Start difference. First operand 2340 states and 2748 transitions. Second operand 6 states. [2020-07-21 01:25:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:13,732 INFO L93 Difference]: Finished difference Result 4057 states and 4772 transitions. [2020-07-21 01:25:13,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:25:13,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 297 [2020-07-21 01:25:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:13,733 INFO L225 Difference]: With dead ends: 4057 [2020-07-21 01:25:13,733 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:25:13,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 588 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:13,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:25:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:25:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:25:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:25:13,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 297 [2020-07-21 01:25:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:13,742 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:25:13,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:25:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:25:13,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:25:13,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:13,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:25:14,383 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 84 [2020-07-21 01:25:14,495 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 94 [2020-07-21 01:25:16,812 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 174 DAG size of output: 122 [2020-07-21 01:25:16,940 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2020-07-21 01:25:17,253 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2020-07-21 01:25:17,628 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 59 [2020-07-21 01:25:17,633 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (let ((.cse2 (not (= 1 |old(~a19~0)|))) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse5 (= 8 ~a17~0)) (.cse0 (<= ~a11~0 0)) (.cse4 (< 0 |old(~a11~0)|)) (.cse1 (not (= 1 ~a21~0)))) (and (or .cse0 (= 1 ~a11~0) .cse1 (< 1 |old(~a11~0)|)) (<= ~a17~0 |old(~a17~0)|) (or .cse2 .cse3 .cse4 .cse1 .cse5) (or .cse2 .cse3 (and (<= ~a25~0 0) .cse5) (< 0 |old(~a25~0)|) .cse1) (= ~a19~0 |old(~a19~0)|) (or .cse0 .cse4 .cse1))) [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,634 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:25:17,635 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:25:17,636 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:25:17,637 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 574) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:25:17,638 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:25:17,639 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:25:17,640 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:25:17,641 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:25:17,642 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:25:17,643 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,644 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,645 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:25:17,646 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,647 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:25:17,648 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:25:17,649 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:25:17,650 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:25:17,650 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,650 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,650 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse17 (not (<= |old(~a19~0)| 0))) (.cse3 (not (<= |old(~a25~0)| 0))) (.cse25 (<= ~a25~0 |old(~a25~0)|)) (.cse18 (= 1 ~a11~0)) (.cse2 (= 9 ~a28~0)) (.cse7 (not (= 9 |old(~a28~0)|))) (.cse21 (not (= 1 |old(~a11~0)|))) (.cse22 (not (= 1 |old(~a25~0)|))) (.cse23 (= 1 ~a25~0)) (.cse10 (not (<= 8 |old(~a17~0)|))) (.cse12 (<= ~a17~0 8)) (.cse13 (<= 8 ~a17~0)) (.cse15 (= ~a19~0 |old(~a19~0)|)) (.cse19 (<= ~a25~0 0)) (.cse11 (not (<= |old(~a17~0)| 8))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse16 (not (= 10 |old(~a28~0)|))) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse20 (= 10 ~a28~0)) (.cse4 (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|)))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse8 (not (< |old(~a11~0)| 2))) (.cse9 (not (<= |old(~a28~0)| 9))) (.cse24 (<= ~a11~0 |old(~a11~0)|)) (.cse14 (<= ~a28~0 9)) (.cse5 (not (= 1 ~a21~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse10 .cse11 .cse5 (and .cse12 .cse13 .cse14 .cse15 (< ~a11~0 2))) (or .cse0 .cse10 .cse3 (not (= 7 |old(~a28~0)|)) (= 7 ~a28~0) .cse4 .cse5 .cse11 .cse6) (or .cse16 .cse3 .cse17 (and .cse18 (= 7 ~a17~0) .cse19 .cse20 (<= ~a19~0 0)) (not (= 7 |old(~a17~0)|)) .cse5 .cse21) (or .cse0 .cse1 .cse22 .cse4 .cse5 .cse6 .cse7 (and .cse2 .cse23)) (or .cse16 .cse1 (and .cse24 .cse20 .cse15 (= 8 ~a17~0) .cse23) .cse22 .cse17 .cse4 .cse5 .cse6) (or .cse0 (and .cse18 .cse2 .cse25) .cse1 .cse3 .cse4 .cse5 .cse7 .cse21) (or .cse0 .cse10 .cse3 .cse25 .cse11 .cse5 .cse6) (or .cse0 .cse1 .cse22 (and .cse18 .cse2 .cse23) .cse4 .cse5 .cse7 .cse21) (or .cse0 .cse10 .cse22 (not (= 8 |old(~a28~0)|)) .cse4 (and (= 8 ~a28~0) .cse23) .cse11 .cse5 .cse6) (or .cse24 .cse9 .cse11 .cse5 .cse6) (or .cse0 .cse1 (not (= 11 |old(~a28~0)|)) .cse22 .cse4 .cse5 .cse6 (and (= 11 ~a28~0) .cse23)) (or .cse0 .cse8 .cse10 (and .cse24 .cse12 .cse13 .cse15 (or (< 0 |old(~a25~0)|) .cse19)) .cse11 .cse5) (or .cse0 .cse16 .cse1 .cse20 .cse4 .cse5 .cse6) (or .cse8 .cse9 (and .cse24 (<= ~a17~0 |old(~a17~0)|) .cse14) (not (<= |old(~a17~0)| 7)) .cse5))) [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:25:17,651 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:25:17,652 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:25:17,653 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:25:17,654 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:25:17,655 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:25:17,656 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:25:17,657 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:25:17,657 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 01:25:17,658 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:25:17,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:25:17,658 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)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (= 7 ~a28~0) (<= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:25:17,658 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8)) (.cse1 (< ~a11~0 2)) (.cse2 (= 10 ~a28~0)) (.cse3 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a19~0) .cse0 (<= 8 ~a17~0) .cse1) (and (= 1 ~a11~0) (= 7 ~a17~0) (<= ~a25~0 0) .cse2 .cse3) (and (<= ~a11~0 0) .cse2 .cse3 (= 8 ~a17~0) (= 1 ~a25~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 01:25:17,658 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:25:17,658 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:25:17,659 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8)) (.cse1 (< ~a11~0 2)) (.cse2 (= 10 ~a28~0)) (.cse3 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1) (not (= 8 |old(~a17~0)|)) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and (= 1 ~a19~0) .cse0 (<= 8 ~a17~0) .cse1) (and (= 1 ~a11~0) (= 7 ~a17~0) (<= ~a25~0 0) .cse2 .cse3) (and (<= ~a11~0 0) .cse2 .cse3 (= 8 ~a17~0) (or (= 1 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0)) (= 1 ~a25~0)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)))) [2020-07-21 01:25:17,659 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:25:17,659 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:25:17,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:25:17 BoogieIcfgContainer [2020-07-21 01:25:17,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:25:17,681 INFO L168 Benchmark]: Toolchain (without parser) took 50980.04 ms. Allocated memory was 135.8 MB in the beginning and 643.3 MB in the end (delta: 507.5 MB). Free memory was 98.1 MB in the beginning and 534.0 MB in the end (delta: -435.9 MB). Peak memory consumption was 514.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:17,682 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.8 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:25:17,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.05 ms. Allocated memory was 135.8 MB in the beginning and 202.9 MB in the end (delta: 67.1 MB). Free memory was 97.6 MB in the beginning and 170.0 MB in the end (delta: -72.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:17,683 INFO L168 Benchmark]: Boogie Preprocessor took 160.52 ms. Allocated memory is still 202.9 MB. Free memory was 170.0 MB in the beginning and 165.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:17,684 INFO L168 Benchmark]: RCFGBuilder took 1256.54 ms. Allocated memory was 202.9 MB in the beginning and 231.2 MB in the end (delta: 28.3 MB). Free memory was 164.8 MB in the beginning and 179.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:17,684 INFO L168 Benchmark]: TraceAbstraction took 48803.91 ms. Allocated memory was 231.2 MB in the beginning and 643.3 MB in the end (delta: 412.1 MB). Free memory was 179.8 MB in the beginning and 534.0 MB in the end (delta: -354.2 MB). Peak memory consumption was 500.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:17,687 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.8 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.05 ms. Allocated memory was 135.8 MB in the beginning and 202.9 MB in the end (delta: 67.1 MB). Free memory was 97.6 MB in the beginning and 170.0 MB in the end (delta: -72.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.52 ms. Allocated memory is still 202.9 MB. Free memory was 170.0 MB in the beginning and 165.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1256.54 ms. Allocated memory was 202.9 MB in the beginning and 231.2 MB in the end (delta: 28.3 MB). Free memory was 164.8 MB in the beginning and 179.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48803.91 ms. Allocated memory was 231.2 MB in the beginning and 643.3 MB in the end (delta: 412.1 MB). Free memory was 179.8 MB in the beginning and 534.0 MB in the end (delta: -354.2 MB). Peak memory consumption was 500.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 574]: 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)) || ((a17 <= 8 && a28 <= 9) && a11 < 2)) || !(8 == \old(a17))) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || (((1 == a19 && a17 <= 8) && 8 <= a17) && a11 < 2)) || ((((1 == a11 && 7 == a17) && a25 <= 0) && 10 == a28) && a19 <= 0)) || ((((a11 <= 0 && 10 == a28) && a19 <= 0) && 8 == a17) && 1 == a25)) || !(1 == a21)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 45.0s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 821 SDtfs, 8480 SDslu, 1789 SDs, 0 SdLazy, 20412 SolverSat, 1659 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4352 GetRequests, 4084 SyntacticMatches, 20 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2340occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 603 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 128 PreInvPairs, 179 NumberOfFragments, 990 HoareAnnotationTreeSize, 128 FomulaSimplifications, 22191 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4908 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 2492 NumberOfCodeBlocks, 1777 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 4229 ConstructedInterpolants, 0 QuantifiedInterpolants, 10413364 SizeOfPredicates, 127 NumberOfNonLiveVariables, 4596 ConjunctsInSsa, 374 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 1738/2137 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...