/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/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:57:42,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:57:42,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:57:42,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 22:57:42,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:57:42,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:57:42,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:57:42,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:57:42,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:57:42,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:57:42,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:57:42,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:57:42,856 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:57:42,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:57:42,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:57:42,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:57:42,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:57:42,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:57:42,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:57:42,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:57:42,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:57:42,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:57:42,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:57:42,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:57:42,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:57:42,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:57:42,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:57:42,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:57:42,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:57:42,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:57:42,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:57:42,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:57:42,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:57:42,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:57:42,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:42,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:57:42,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:57:42,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:57:43,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:57:43,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:57:43,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:57:43,182 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:57:43,182 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:57:43,183 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 22:57:43,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0017f62ee/cef2dbc88c6342af825ae5ddb14dcdbb/FLAGd5ea399fd [2020-07-21 22:57:43,803 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:57:43,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 22:57:43,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0017f62ee/cef2dbc88c6342af825ae5ddb14dcdbb/FLAGd5ea399fd [2020-07-21 22:57:44,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0017f62ee/cef2dbc88c6342af825ae5ddb14dcdbb [2020-07-21 22:57:44,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:57:44,094 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:57:44,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:57:44,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:57:44,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:57:44,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:44,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4a021e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44, skipping insertion in model container [2020-07-21 22:57:44,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:44,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:57:44,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:57:44,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:57:44,721 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:57:44,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:57:44,899 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:57:44,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44 WrapperNode [2020-07-21 22:57:44,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:57:44,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:57:44,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:57:44,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:57:44,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:44,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:44,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:44,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:45,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:45,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:45,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... [2020-07-21 22:57:45,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:57:45,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:57:45,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:57:45,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:57:45,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:57:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:57:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:57:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:57:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:57:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:57:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:57:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:57:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:57:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:57:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:57:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:57:46,523 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:57:46,523 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:57:46,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:46 BoogieIcfgContainer [2020-07-21 22:57:46,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:57:46,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:57:46,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:57:46,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:57:46,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:57:44" (1/3) ... [2020-07-21 22:57:46,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c41744f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:46, skipping insertion in model container [2020-07-21 22:57:46,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:57:44" (2/3) ... [2020-07-21 22:57:46,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c41744f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:57:46, skipping insertion in model container [2020-07-21 22:57:46,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:57:46" (3/3) ... [2020-07-21 22:57:46,539 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-07-21 22:57:46,552 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:57:46,561 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:57:46,578 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:57:46,608 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:57:46,609 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:57:46,609 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:57:46,609 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:57:46,609 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:57:46,609 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:57:46,609 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:57:46,610 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:57:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 22:57:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 22:57:46,648 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:46,650 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] [2020-07-21 22:57:46,650 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:46,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:46,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-07-21 22:57:46,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:46,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323216411] [2020-07-21 22:57:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:46,805 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:57:46,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:46,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:57:46,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:46,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:46,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323216411] [2020-07-21 22:57:46,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:46,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:57:46,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012118910] [2020-07-21 22:57:46,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:57:46,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:46,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:57:46,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:46,918 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 22:57:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:48,001 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 22:57:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:57:48,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-21 22:57:48,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:48,019 INFO L225 Difference]: With dead ends: 571 [2020-07-21 22:57:48,020 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 22:57:48,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:57:48,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 22:57:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 22:57:48,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 22:57:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 22:57:48,101 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 67 [2020-07-21 22:57:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:48,102 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 22:57:48,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:57:48,102 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 22:57:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 22:57:48,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:48,109 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, 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] [2020-07-21 22:57:48,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:48,311 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:48,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:48,312 INFO L82 PathProgramCache]: Analyzing trace with hash -649832990, now seen corresponding path program 1 times [2020-07-21 22:57:48,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:48,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56487491] [2020-07-21 22:57:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:48,408 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:57:48,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:48,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 22:57:48,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 22:57:48,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 22:57:48,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56487491] [2020-07-21 22:57:48,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:57:48,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-07-21 22:57:48,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401334024] [2020-07-21 22:57:48,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 22:57:48,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:48,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 22:57:48,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:57:48,732 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 22:57:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:49,441 INFO L93 Difference]: Finished difference Result 586 states and 784 transitions. [2020-07-21 22:57:49,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 22:57:49,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-07-21 22:57:49,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:49,452 INFO L225 Difference]: With dead ends: 586 [2020-07-21 22:57:49,452 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 22:57:49,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:57:49,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 22:57:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 22:57:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 22:57:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 782 transitions. [2020-07-21 22:57:49,521 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 782 transitions. Word has length 137 [2020-07-21 22:57:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:49,522 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 782 transitions. [2020-07-21 22:57:49,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 22:57:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 782 transitions. [2020-07-21 22:57:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-07-21 22:57:49,528 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:49,528 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:49,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:49,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1807493347, now seen corresponding path program 1 times [2020-07-21 22:57:49,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:49,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636102884] [2020-07-21 22:57:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:49,890 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:49,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:49,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:49,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:49,932 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:57:49,932 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:50,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:50,102 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:50,103 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:50,107 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:57:50,107 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:57:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:50,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636102884] [2020-07-21 22:57:50,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:50,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:57:50,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372247543] [2020-07-21 22:57:50,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:57:50,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:50,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:57:50,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:57:50,354 INFO L87 Difference]: Start difference. First operand 584 states and 782 transitions. Second operand 6 states. [2020-07-21 22:57:51,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:51,367 INFO L93 Difference]: Finished difference Result 1323 states and 1815 transitions. [2020-07-21 22:57:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:57:51,368 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2020-07-21 22:57:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:51,374 INFO L225 Difference]: With dead ends: 1323 [2020-07-21 22:57:51,374 INFO L226 Difference]: Without dead ends: 745 [2020-07-21 22:57:51,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 506 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-07-21 22:57:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 739. [2020-07-21 22:57:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 22:57:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1006 transitions. [2020-07-21 22:57:51,408 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1006 transitions. Word has length 256 [2020-07-21 22:57:51,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:51,408 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1006 transitions. [2020-07-21 22:57:51,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:57:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1006 transitions. [2020-07-21 22:57:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-21 22:57:51,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:51,413 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:51,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:51,628 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:51,628 INFO L82 PathProgramCache]: Analyzing trace with hash -474442487, now seen corresponding path program 1 times [2020-07-21 22:57:51,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:51,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869372628] [2020-07-21 22:57:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:51,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:57:51,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:51,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:57:51,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:51,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:57:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:57:52,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869372628] [2020-07-21 22:57:52,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:57:52,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:57:52,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016174949] [2020-07-21 22:57:52,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:57:52,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:52,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:57:52,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:57:52,062 INFO L87 Difference]: Start difference. First operand 739 states and 1006 transitions. Second operand 6 states. [2020-07-21 22:57:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:53,240 INFO L93 Difference]: Finished difference Result 1643 states and 2277 transitions. [2020-07-21 22:57:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:57:53,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 262 [2020-07-21 22:57:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:53,249 INFO L225 Difference]: With dead ends: 1643 [2020-07-21 22:57:53,249 INFO L226 Difference]: Without dead ends: 910 [2020-07-21 22:57:53,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 520 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:57:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-07-21 22:57:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 747. [2020-07-21 22:57:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-07-21 22:57:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 907 transitions. [2020-07-21 22:57:53,300 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 907 transitions. Word has length 262 [2020-07-21 22:57:53,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:53,303 INFO L479 AbstractCegarLoop]: Abstraction has 747 states and 907 transitions. [2020-07-21 22:57:53,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:57:53,303 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 907 transitions. [2020-07-21 22:57:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 22:57:53,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:53,308 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:53,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:53,540 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:53,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:53,541 INFO L82 PathProgramCache]: Analyzing trace with hash 562765338, now seen corresponding path program 1 times [2020-07-21 22:57:53,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:53,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978233426] [2020-07-21 22:57:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:53,651 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:53,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:53,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 22:57:53,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 22:57:53,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:57:53,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978233426] [2020-07-21 22:57:53,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:57:53,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:57:53,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891420832] [2020-07-21 22:57:53,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:57:53,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:57:53,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:57:53,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:57:53,739 INFO L87 Difference]: Start difference. First operand 747 states and 907 transitions. Second operand 5 states. [2020-07-21 22:57:54,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:57:54,712 INFO L93 Difference]: Finished difference Result 1655 states and 2009 transitions. [2020-07-21 22:57:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:57:54,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2020-07-21 22:57:54,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:57:54,720 INFO L225 Difference]: With dead ends: 1655 [2020-07-21 22:57:54,720 INFO L226 Difference]: Without dead ends: 914 [2020-07-21 22:57:54,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:57:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-07-21 22:57:54,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 898. [2020-07-21 22:57:54,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-07-21 22:57:54,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1074 transitions. [2020-07-21 22:57:54,754 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1074 transitions. Word has length 263 [2020-07-21 22:57:54,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:57:54,755 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 1074 transitions. [2020-07-21 22:57:54,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:57:54,755 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1074 transitions. [2020-07-21 22:57:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 22:57:54,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:57:54,761 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:57:54,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:54,975 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:57:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:57:54,976 INFO L82 PathProgramCache]: Analyzing trace with hash 854527778, now seen corresponding path program 1 times [2020-07-21 22:57:54,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:57:54,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484506457] [2020-07-21 22:57:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:57:55,114 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:57:55,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:57:55,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 22:57:55,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:57:55,155 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:57:55,157 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:07,564 WARN L193 SmtUtils]: Spent 12.37 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 22:58:07,601 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:07,772 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 22:58:07,772 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:07,774 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 22:58:07,775 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 22:58:08,170 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 158 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:58:08,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:08,269 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:58:08,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:08,509 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:08,510 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:58:08,511 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:58:08,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:08,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:08,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:08,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:13,871 WARN L193 SmtUtils]: Spent 5.30 s on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-07-21 22:58:13,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484506457] [2020-07-21 22:58:13,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:58:13,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 22:58:13,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426286410] [2020-07-21 22:58:13,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 22:58:13,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:13,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 22:58:13,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:58:13,877 INFO L87 Difference]: Start difference. First operand 898 states and 1074 transitions. Second operand 9 states. [2020-07-21 22:58:38,695 WARN L193 SmtUtils]: Spent 23.22 s on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-07-21 22:58:39,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:39,735 INFO L93 Difference]: Finished difference Result 2335 states and 2950 transitions. [2020-07-21 22:58:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 22:58:39,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 271 [2020-07-21 22:58:39,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:39,746 INFO L225 Difference]: With dead ends: 2335 [2020-07-21 22:58:39,746 INFO L226 Difference]: Without dead ends: 1559 [2020-07-21 22:58:39,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 445 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-07-21 22:58:39,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-07-21 22:58:39,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1486. [2020-07-21 22:58:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-07-21 22:58:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1821 transitions. [2020-07-21 22:58:39,818 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1821 transitions. Word has length 271 [2020-07-21 22:58:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:39,819 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 1821 transitions. [2020-07-21 22:58:39,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 22:58:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1821 transitions. [2020-07-21 22:58:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-07-21 22:58:39,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:39,826 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:58:40,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:40,029 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:40,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash -550746410, now seen corresponding path program 1 times [2020-07-21 22:58:40,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:40,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748621111] [2020-07-21 22:58:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:40,138 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:58:40,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:40,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 22:58:40,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 22:58:40,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:58:40,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748621111] [2020-07-21 22:58:40,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:58:40,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:58:40,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265759979] [2020-07-21 22:58:40,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:58:40,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:40,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:58:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:58:40,213 INFO L87 Difference]: Start difference. First operand 1486 states and 1821 transitions. Second operand 5 states. [2020-07-21 22:58:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:58:41,191 INFO L93 Difference]: Finished difference Result 4033 states and 5178 transitions. [2020-07-21 22:58:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:58:41,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-07-21 22:58:41,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:58:41,212 INFO L225 Difference]: With dead ends: 4033 [2020-07-21 22:58:41,212 INFO L226 Difference]: Without dead ends: 2696 [2020-07-21 22:58:41,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:58:41,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2020-07-21 22:58:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2080. [2020-07-21 22:58:41,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2020-07-21 22:58:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2552 transitions. [2020-07-21 22:58:41,284 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2552 transitions. Word has length 281 [2020-07-21 22:58:41,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:58:41,285 INFO L479 AbstractCegarLoop]: Abstraction has 2080 states and 2552 transitions. [2020-07-21 22:58:41,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:58:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2552 transitions. [2020-07-21 22:58:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-21 22:58:41,295 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:58:41,296 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 22:58:41,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:41,511 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:58:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:58:41,512 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-07-21 22:58:41,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:58:41,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466521802] [2020-07-21 22:58:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:58:41,651 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:58:41,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:58:41,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 22:58:41,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:58:41,677 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:41,682 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:41,683 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:41,686 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:41,687 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,688 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:41,689 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,690 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,691 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,695 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,699 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:41,700 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,702 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 22:58:41,705 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,706 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,709 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,711 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,713 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,715 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:58:41,716 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,717 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,719 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:58:41,719 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,720 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,722 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:58:41,725 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 22:58:54,124 WARN L193 SmtUtils]: Spent 12.33 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-21 22:58:54,147 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:58:54,248 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:58:54,248 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:54,249 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:54,270 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:54,272 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:58:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 22:58:54,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:58:54,582 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:54,583 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,583 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,584 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:54,606 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,609 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:54,717 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,718 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,719 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,720 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,721 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:58:54,721 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:54,722 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:58:54,723 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:54,724 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:54,724 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:54,726 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:58:54,726 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:58:54,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466521802] [2020-07-21 22:58:54,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:58:54,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 22:58:54,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118761205] [2020-07-21 22:58:54,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:58:54,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:58:54,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:58:54,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:58:54,835 INFO L87 Difference]: Start difference. First operand 2080 states and 2552 transitions. Second operand 8 states. [2020-07-21 22:59:10,353 WARN L193 SmtUtils]: Spent 12.39 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-21 22:59:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:11,505 INFO L93 Difference]: Finished difference Result 4621 states and 5818 transitions. [2020-07-21 22:59:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 22:59:11,506 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-07-21 22:59:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:11,519 INFO L225 Difference]: With dead ends: 4621 [2020-07-21 22:59:11,520 INFO L226 Difference]: Without dead ends: 2690 [2020-07-21 22:59:11,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 625 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-21 22:59:11,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2020-07-21 22:59:11,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2676. [2020-07-21 22:59:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2676 states. [2020-07-21 22:59:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3236 transitions. [2020-07-21 22:59:11,593 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3236 transitions. Word has length 378 [2020-07-21 22:59:11,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:11,593 INFO L479 AbstractCegarLoop]: Abstraction has 2676 states and 3236 transitions. [2020-07-21 22:59:11,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:59:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3236 transitions. [2020-07-21 22:59:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-07-21 22:59:11,604 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:11,605 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-21 22:59:11,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:11,820 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:11,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1039577823, now seen corresponding path program 1 times [2020-07-21 22:59:11,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:11,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991741887] [2020-07-21 22:59:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:12,013 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:59:12,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:12,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:59:12,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 22:59:12,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:59:12,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991741887] [2020-07-21 22:59:12,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:59:12,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:59:12,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381424276] [2020-07-21 22:59:12,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:59:12,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:12,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:59:12,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:59:12,094 INFO L87 Difference]: Start difference. First operand 2676 states and 3236 transitions. Second operand 3 states. [2020-07-21 22:59:12,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:12,796 INFO L93 Difference]: Finished difference Result 5781 states and 7079 transitions. [2020-07-21 22:59:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:59:12,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 392 [2020-07-21 22:59:12,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:12,813 INFO L225 Difference]: With dead ends: 5781 [2020-07-21 22:59:12,813 INFO L226 Difference]: Without dead ends: 3254 [2020-07-21 22:59:12,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:59:12,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2020-07-21 22:59:12,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2964. [2020-07-21 22:59:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2964 states. [2020-07-21 22:59:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3575 transitions. [2020-07-21 22:59:12,907 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3575 transitions. Word has length 392 [2020-07-21 22:59:12,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:12,908 INFO L479 AbstractCegarLoop]: Abstraction has 2964 states and 3575 transitions. [2020-07-21 22:59:12,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:59:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3575 transitions. [2020-07-21 22:59:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-07-21 22:59:12,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:12,915 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-21 22:59:13,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:13,129 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:13,129 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-07-21 22:59:13,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:13,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132768417] [2020-07-21 22:59:13,130 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:13,315 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:59:13,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:13,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 22:59:13,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:13,373 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:13,373 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:13,374 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:13,375 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:59:13,375 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:13,376 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:13,377 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:13,378 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:25,651 WARN L193 SmtUtils]: Spent 12.23 s on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-07-21 22:59:25,679 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:27,817 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:59:27,818 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:27,819 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:27,851 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 185 proven. 197 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 22:59:28,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:59:28,216 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:28,216 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,217 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,218 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:28,294 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,295 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:28,460 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,463 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,464 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,464 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,465 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,466 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,469 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,469 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:28,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,474 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,474 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,477 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,477 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,478 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,479 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:28,480 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,481 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,481 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,482 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 22:59:28,483 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:28,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,485 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 22:59:28,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:28,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 22:59:28,538 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,538 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,539 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,539 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,540 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,542 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 22:59:28,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132768417] [2020-07-21 22:59:28,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:59:28,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 22:59:28,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593323210] [2020-07-21 22:59:28,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 22:59:28,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:28,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 22:59:28,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2020-07-21 22:59:28,922 INFO L87 Difference]: Start difference. First operand 2964 states and 3575 transitions. Second operand 12 states. [2020-07-21 23:01:24,055 WARN L193 SmtUtils]: Spent 6.16 s on a formula simplification that was a NOOP. DAG size: 38 [2020-07-21 23:02:48,939 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2020-07-21 23:02:51,439 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-07-21 23:03:31,105 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-07-21 23:03:31,514 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-07-21 23:03:33,350 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-07-21 23:03:34,213 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-07-21 23:03:35,685 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-07-21 23:03:37,030 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2020-07-21 23:03:38,374 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-07-21 23:03:47,605 WARN L193 SmtUtils]: Spent 6.30 s on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 23:03:55,289 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2020-07-21 23:03:55,825 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-07-21 23:04:13,996 WARN L193 SmtUtils]: Spent 14.71 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 23:04:14,453 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-07-21 23:04:28,058 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2020-07-21 23:04:35,768 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 23:04:40,904 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-07-21 23:05:28,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:05:28,190 INFO L93 Difference]: Finished difference Result 7313 states and 8982 transitions. [2020-07-21 23:05:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-21 23:05:28,202 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-07-21 23:05:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:05:28,230 INFO L225 Difference]: With dead ends: 7313 [2020-07-21 23:05:28,230 INFO L226 Difference]: Without dead ends: 4498 [2020-07-21 23:05:28,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 812 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 51.9s TimeCoverageRelationStatistics Valid=415, Invalid=1562, Unknown=3, NotChecked=0, Total=1980 [2020-07-21 23:05:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2020-07-21 23:05:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 4484. [2020-07-21 23:05:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4484 states. [2020-07-21 23:05:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 5364 transitions. [2020-07-21 23:05:28,375 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 5364 transitions. Word has length 397 [2020-07-21 23:05:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:05:28,376 INFO L479 AbstractCegarLoop]: Abstraction has 4484 states and 5364 transitions. [2020-07-21 23:05:28,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 23:05:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 5364 transitions. [2020-07-21 23:05:28,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-07-21 23:05:28,388 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:05:28,389 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-21 23:05:28,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:05:28,593 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:05:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:05:28,593 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-07-21 23:05:28,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:05:28,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630605592] [2020-07-21 23:05:28,594 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 23:05:29,103 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:05:29,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:05:29,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:05:29,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:05:29,118 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:05:29,119 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,119 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 23:05:29,120 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,120 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,121 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,122 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,122 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,123 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:05:29,123 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,124 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,124 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,125 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:05:29,125 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,126 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,126 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:05:29,127 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,128 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,128 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,129 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,130 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,130 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,131 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:05:29,884 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 26 [2020-07-21 23:05:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-07-21 23:05:30,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:05:30,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630605592] [2020-07-21 23:05:30,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:05:30,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:05:30,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776256637] [2020-07-21 23:05:30,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:05:30,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:05:30,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:05:30,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:05:30,256 INFO L87 Difference]: Start difference. First operand 4484 states and 5364 transitions. Second operand 3 states. [2020-07-21 23:05:38,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:05:38,190 INFO L93 Difference]: Finished difference Result 5801 states and 7014 transitions. [2020-07-21 23:05:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:05:38,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2020-07-21 23:05:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:05:38,201 INFO L225 Difference]: With dead ends: 5801 [2020-07-21 23:05:38,201 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:05:38,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:05:38,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:05:38,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:05:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:05:38,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:05:38,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-07-21 23:05:38,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:05:38,215 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:05:38,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:05:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:05:38,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:05:38,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:05:38,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:05:39,655 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 274 [2020-07-21 23:05:39,979 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 274 [2020-07-21 23:05:40,197 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 15 [2020-07-21 23:05:40,719 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 28 [2020-07-21 23:05:49,590 WARN L193 SmtUtils]: Spent 8.83 s on a formula simplification. DAG size of input: 311 DAG size of output: 79 [2020-07-21 23:05:49,807 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 11 [2020-07-21 23:06:04,817 WARN L193 SmtUtils]: Spent 15.00 s on a formula simplification. DAG size of input: 296 DAG size of output: 90 [2020-07-21 23:06:19,611 WARN L193 SmtUtils]: Spent 14.79 s on a formula simplification. DAG size of input: 296 DAG size of output: 90 [2020-07-21 23:06:19,618 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:06:19,618 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 23:06:19,618 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:06:19,618 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 23:06:19,619 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,619 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,619 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,619 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,620 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,620 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,620 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 23:06:19,620 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 23:06:19,620 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 23:06:19,620 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,621 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 23:06:19,622 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,623 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,624 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 23:06:19,625 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 23:06:19,626 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,627 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 23:06:19,628 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 23:06:19,629 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,630 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 23:06:19,631 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 23:06:19,632 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (not (< 6 |old(~a19~0)|))) (.cse4 (and (not (< |old(~a10~0)| 3)) (not (< |old(~a1~0)| 219)))) (.cse0 (not (= 0 ~a12~0))) (.cse1 (not (= 14 ~a4~0))) (.cse2 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= |old(~a10~0)| 0)) .cse0 .cse1 .cse2) (or (not (<= 23 (div (+ |old(~a1~0)| (- 517989)) 5))) .cse3 .cse0 .cse1 .cse2) (or .cse4 .cse3 .cse0 .cse1 .cse2) (or .cse4 .cse0 (forall ((v_~a1~0_451 Int)) (let ((.cse6 (mod v_~a1~0_451 25))) (let ((.cse5 (* 5 .cse6)) (.cse7 (mod (+ (* .cse6 5) 10) 25))) (or (not (<= 0 (+ .cse5 60))) (= 0 .cse6) (not (< .cse5 65)) (not (< v_~a1~0_451 0)) (not (<= .cse7 (+ |old(~a1~0)| 12))) (= .cse7 0))))) .cse1 (not (<= 2 |old(~a10~0)|)) .cse2) (or (not (<= 4 |old(~a10~0)|)) .cse0 .cse1 .cse2))) [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 23:06:19,633 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 23:06:19,634 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 23:06:19,635 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 23:06:19,636 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 23:06:19,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:06:19,638 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (= 0 ~a12~0) (= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-21 23:06:19,638 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:06:19,638 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:06:19,638 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= 9 ~a19~0) (= ~a1~0 |old(~a1~0)|)) (not (= 14 ~a4~0)) (not (= 9 |old(~a19~0)|))) [2020-07-21 23:06:19,638 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:06:19,638 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse4 (< 6 ~a19~0))) (or (<= ~a10~0 0) (and (exists ((v_~a1~0_451 Int)) (let ((.cse1 (mod v_~a1~0_451 25))) (let ((.cse0 (* 5 .cse1)) (.cse2 (mod (+ (* .cse1 5) 10) 25))) (and (< .cse0 65) (not (= 0 .cse1)) (<= 0 (+ .cse0 60)) (< v_~a1~0_451 0) (not (= .cse2 0)) (<= .cse2 (+ ~a1~0 12)))))) (or (< ~a10~0 3) (< ~a1~0 219)) (<= 2 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and (exists ((v_~a1~0_424 Int) (v_~a1~0_BEFORE_CALL_20 Int)) (let ((.cse3 (mod v_~a1~0_424 25))) (and (<= v_~a1~0_BEFORE_CALL_20 v_~a1~0_424) (<= 23 (div (+ v_~a1~0_BEFORE_CALL_20 (- 517989)) 5)) (< .cse3 42592) (<= 0 v_~a1~0_424) (not (= 0 (mod (+ .cse3 3) 5))) (<= ~a1~0 (+ (div (+ .cse3 (- 42592)) 5) 8518))))) .cse4) (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (and (<= ~a10~0 2) .cse4) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse4) (<= 4 ~a10~0))) [2020-07-21 23:06:19,638 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 23:06:19,638 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 23:06:19,639 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse4 (< 6 ~a19~0))) (or (<= ~a10~0 0) (and (exists ((v_~a1~0_451 Int)) (let ((.cse1 (mod v_~a1~0_451 25))) (let ((.cse0 (* 5 .cse1)) (.cse2 (mod (+ (* .cse1 5) 10) 25))) (and (< .cse0 65) (not (= 0 .cse1)) (<= 0 (+ .cse0 60)) (< v_~a1~0_451 0) (not (= .cse2 0)) (<= .cse2 (+ ~a1~0 12)))))) (or (< ~a10~0 3) (< ~a1~0 219)) (<= 2 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and (exists ((v_~a1~0_424 Int) (v_~a1~0_BEFORE_CALL_20 Int)) (let ((.cse3 (mod v_~a1~0_424 25))) (and (<= v_~a1~0_BEFORE_CALL_20 v_~a1~0_424) (<= 23 (div (+ v_~a1~0_BEFORE_CALL_20 (- 517989)) 5)) (< .cse3 42592) (<= 0 v_~a1~0_424) (not (= 0 (mod (+ .cse3 3) 5))) (<= ~a1~0 (+ (div (+ .cse3 (- 42592)) 5) 8518))))) .cse4) (not (= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (and (<= ~a10~0 2) .cse4) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse4) (<= 4 ~a10~0))) [2020-07-21 23:06:19,639 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:06:19,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:06:19 BoogieIcfgContainer [2020-07-21 23:06:19,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:06:19,679 INFO L168 Benchmark]: Toolchain (without parser) took 515586.84 ms. Allocated memory was 143.1 MB in the beginning and 494.4 MB in the end (delta: 351.3 MB). Free memory was 98.0 MB in the beginning and 280.0 MB in the end (delta: -182.0 MB). Peak memory consumption was 423.9 MB. Max. memory is 7.1 GB. [2020-07-21 23:06:19,681 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 23:06:19,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.07 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 97.6 MB in the beginning and 167.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-21 23:06:19,682 INFO L168 Benchmark]: Boogie Preprocessor took 171.40 ms. Allocated memory is still 202.9 MB. Free memory was 167.7 MB in the beginning and 163.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:06:19,683 INFO L168 Benchmark]: RCFGBuilder took 1454.28 ms. Allocated memory was 202.9 MB in the beginning and 232.3 MB in the end (delta: 29.4 MB). Free memory was 163.2 MB in the beginning and 179.2 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-07-21 23:06:19,684 INFO L168 Benchmark]: TraceAbstraction took 513145.51 ms. Allocated memory was 232.3 MB in the beginning and 494.4 MB in the end (delta: 262.1 MB). Free memory was 177.7 MB in the beginning and 280.0 MB in the end (delta: -102.3 MB). Peak memory consumption was 414.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:06:19,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.07 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 97.6 MB in the beginning and 167.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.40 ms. Allocated memory is still 202.9 MB. Free memory was 167.7 MB in the beginning and 163.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1454.28 ms. Allocated memory was 202.9 MB in the beginning and 232.3 MB in the end (delta: 29.4 MB). Free memory was 163.2 MB in the beginning and 179.2 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 513145.51 ms. Allocated memory was 232.3 MB in the beginning and 494.4 MB in the end (delta: 262.1 MB). Free memory was 177.7 MB in the beginning and 280.0 MB in the end (delta: -102.3 MB). Peak memory consumption was 414.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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: 582]: Loop Invariant [2020-07-21 23:06:19,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_451,QUANTIFIED] [2020-07-21 23:06:19,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_BEFORE_CALL_20,QUANTIFIED] [2020-07-21 23:06:19,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] [2020-07-21 23:06:19,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_424,QUANTIFIED] Derived loop invariant: (((((((((a10 <= 0 || (((\exists v_~a1~0_451 : int :: ((((5 * (v_~a1~0_451 % 25) < 65 && !(0 == v_~a1~0_451 % 25)) && 0 <= 5 * (v_~a1~0_451 % 25) + 60) && v_~a1~0_451 < 0) && !((v_~a1~0_451 % 25 * 5 + 10) % 25 == 0)) && (v_~a1~0_451 % 25 * 5 + 10) % 25 <= a1 + 12) && (a10 < 3 || a1 < 219)) && 2 <= a10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(0 == a12)) || ((\exists v_~a1~0_424 : int, v_~a1~0_BEFORE_CALL_20 : int :: ((((v_~a1~0_BEFORE_CALL_20 <= v_~a1~0_424 && 23 <= (v_~a1~0_BEFORE_CALL_20 + -517989) / 5) && v_~a1~0_424 % 25 < 42592) && 0 <= v_~a1~0_424) && !(0 == (v_~a1~0_424 % 25 + 3) % 5)) && a1 <= (v_~a1~0_424 % 25 + -42592) / 5 + 8518) && 6 < a19)) || !(9 == \old(a19))) || !(14 == a4)) || (a10 <= 2 && 6 < a19)) || (23 <= (a1 + -517989) / 5 && 6 < a19)) || 4 <= a10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 471.8s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 416.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 41.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 600 SDtfs, 4456 SDslu, 547 SDs, 0 SdLazy, 11314 SolverSat, 1995 SolverUnsat, 143 SolverUnknown, 0 SolverNotchecked, 316.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4701 GetRequests, 4573 SyntacticMatches, 11 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 120.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4484occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 1192 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 132 PreInvPairs, 228 NumberOfFragments, 581 HoareAnnotationTreeSize, 132 FomulaSimplifications, 17193 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 30892 FormulaSimplificationTreeSizeReductionInter, 39.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 50.0s InterpolantComputationTime, 3111 NumberOfCodeBlocks, 2485 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 4148 ConstructedInterpolants, 81 QuantifiedInterpolants, 6691182 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4185 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 3477/3784 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...