/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 19:32:28,642 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 19:32:28,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 19:32:28,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 19:32:28,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 19:32:28,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 19:32:28,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 19:32:28,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 19:32:28,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 19:32:28,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 19:32:28,801 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 19:32:28,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 19:32:28,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 19:32:28,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 19:32:28,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 19:32:28,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 19:32:28,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 19:32:28,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 19:32:28,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 19:32:28,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 19:32:28,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 19:32:28,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 19:32:28,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 19:32:28,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 19:32:28,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 19:32:28,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 19:32:28,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 19:32:28,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 19:32:28,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 19:32:28,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 19:32:28,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 19:32:28,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 19:32:28,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 19:32:28,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 19:32:28,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 19:32:28,807 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; [2020-08-18 19:32:29,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 19:32:29,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 19:32:29,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 19:32:29,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 19:32:29,151 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 19:32:29,151 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label02.c [2020-08-18 19:32:29,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b913e8ad1/523fc2d0603d4cf1a3e9f84911d44856/FLAGa99022d66 [2020-08-18 19:32:29,789 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 19:32:29,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label02.c [2020-08-18 19:32:29,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b913e8ad1/523fc2d0603d4cf1a3e9f84911d44856/FLAGa99022d66 [2020-08-18 19:32:30,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b913e8ad1/523fc2d0603d4cf1a3e9f84911d44856 [2020-08-18 19:32:30,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 19:32:30,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 19:32:30,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 19:32:30,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 19:32:30,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 19:32:30,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d8fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30, skipping insertion in model container [2020-08-18 19:32:30,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 19:32:30,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 19:32:30,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:32:30,550 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 19:32:30,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:32:30,812 INFO L208 MainTranslator]: Completed translation [2020-08-18 19:32:30,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30 WrapperNode [2020-08-18 19:32:30,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 19:32:30,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 19:32:30,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 19:32:30,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 19:32:30,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... [2020-08-18 19:32:30,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 19:32:30,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 19:32:30,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 19:32:30,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 19:32:30,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 19:32:31,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 19:32:31,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 19:32:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 19:32:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 19:32:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 19:32:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 19:32:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 19:32:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 19:32:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 19:32:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 19:32:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 19:32:32,335 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 19:32:32,335 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 19:32:32,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:32:32 BoogieIcfgContainer [2020-08-18 19:32:32,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 19:32:32,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 19:32:32,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 19:32:32,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 19:32:32,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:32:30" (1/3) ... [2020-08-18 19:32:32,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ab11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:32:32, skipping insertion in model container [2020-08-18 19:32:32,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:32:30" (2/3) ... [2020-08-18 19:32:32,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ab11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:32:32, skipping insertion in model container [2020-08-18 19:32:32,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:32:32" (3/3) ... [2020-08-18 19:32:32,351 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label02.c [2020-08-18 19:32:32,362 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 19:32:32,372 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 19:32:32,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 19:32:32,414 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 19:32:32,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 19:32:32,415 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 19:32:32,415 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 19:32:32,415 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 19:32:32,415 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 19:32:32,416 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 19:32:32,416 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 19:32:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-18 19:32:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-08-18 19:32:32,453 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:32:32,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:32:32,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:32:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:32:32,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1049075015, now seen corresponding path program 1 times [2020-08-18 19:32:32,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:32:32,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125045256] [2020-08-18 19:32:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:32:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:32,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:32:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:32:32,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125045256] [2020-08-18 19:32:32,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:32:32,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 19:32:32,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720333830] [2020-08-18 19:32:32,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 19:32:32,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:32:32,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 19:32:32,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 19:32:32,999 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-18 19:32:35,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:32:35,367 INFO L93 Difference]: Finished difference Result 813 states and 1406 transitions. [2020-08-18 19:32:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 19:32:35,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-08-18 19:32:35,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:32:35,389 INFO L225 Difference]: With dead ends: 813 [2020-08-18 19:32:35,389 INFO L226 Difference]: Without dead ends: 488 [2020-08-18 19:32:35,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 19:32:35,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-08-18 19:32:35,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 481. [2020-08-18 19:32:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-08-18 19:32:35,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2020-08-18 19:32:35,493 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 99 [2020-08-18 19:32:35,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:32:35,494 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2020-08-18 19:32:35,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 19:32:35,494 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2020-08-18 19:32:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-18 19:32:35,502 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:32:35,502 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:32:35,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 19:32:35,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:32:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:32:35,503 INFO L82 PathProgramCache]: Analyzing trace with hash 30248894, now seen corresponding path program 1 times [2020-08-18 19:32:35,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:32:35,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141719383] [2020-08-18 19:32:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:32:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:35,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:32:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:35,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 19:32:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:32:35,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141719383] [2020-08-18 19:32:35,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:32:35,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 19:32:35,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105623085] [2020-08-18 19:32:35,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 19:32:35,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:32:35,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 19:32:35,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 19:32:35,771 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand 5 states. [2020-08-18 19:32:37,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:32:37,179 INFO L93 Difference]: Finished difference Result 1421 states and 2094 transitions. [2020-08-18 19:32:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 19:32:37,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-08-18 19:32:37,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:32:37,194 INFO L225 Difference]: With dead ends: 1421 [2020-08-18 19:32:37,194 INFO L226 Difference]: Without dead ends: 946 [2020-08-18 19:32:37,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 19:32:37,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-08-18 19:32:37,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 926. [2020-08-18 19:32:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2020-08-18 19:32:37,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1287 transitions. [2020-08-18 19:32:37,283 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1287 transitions. Word has length 107 [2020-08-18 19:32:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:32:37,284 INFO L479 AbstractCegarLoop]: Abstraction has 926 states and 1287 transitions. [2020-08-18 19:32:37,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 19:32:37,284 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1287 transitions. [2020-08-18 19:32:37,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-18 19:32:37,299 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:32:37,299 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:32:37,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 19:32:37,299 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:32:37,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:32:37,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1604675466, now seen corresponding path program 1 times [2020-08-18 19:32:37,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:32:37,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30626180] [2020-08-18 19:32:37,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:32:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:37,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:32:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 19:32:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:37,474 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:32:37,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30626180] [2020-08-18 19:32:37,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:32:37,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 19:32:37,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571043575] [2020-08-18 19:32:37,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 19:32:37,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:32:37,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 19:32:37,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 19:32:37,477 INFO L87 Difference]: Start difference. First operand 926 states and 1287 transitions. Second operand 5 states. [2020-08-18 19:32:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:32:38,784 INFO L93 Difference]: Finished difference Result 2740 states and 3967 transitions. [2020-08-18 19:32:38,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 19:32:38,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-08-18 19:32:38,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:32:38,805 INFO L225 Difference]: With dead ends: 2740 [2020-08-18 19:32:38,806 INFO L226 Difference]: Without dead ends: 1820 [2020-08-18 19:32:38,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 19:32:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-08-18 19:32:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1802. [2020-08-18 19:32:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1802 states. [2020-08-18 19:32:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2373 transitions. [2020-08-18 19:32:38,903 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2373 transitions. Word has length 113 [2020-08-18 19:32:38,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:32:38,905 INFO L479 AbstractCegarLoop]: Abstraction has 1802 states and 2373 transitions. [2020-08-18 19:32:38,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 19:32:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2373 transitions. [2020-08-18 19:32:38,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-18 19:32:38,914 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:32:38,915 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:32:38,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 19:32:38,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:32:38,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:32:38,916 INFO L82 PathProgramCache]: Analyzing trace with hash 183684818, now seen corresponding path program 1 times [2020-08-18 19:32:38,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:32:38,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719277041] [2020-08-18 19:32:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:32:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:39,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:32:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 19:32:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:39,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 19:32:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 19:32:39,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719277041] [2020-08-18 19:32:39,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:32:39,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 19:32:39,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549206978] [2020-08-18 19:32:39,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 19:32:39,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:32:39,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 19:32:39,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-18 19:32:39,167 INFO L87 Difference]: Start difference. First operand 1802 states and 2373 transitions. Second operand 9 states. [2020-08-18 19:32:40,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:32:40,614 INFO L93 Difference]: Finished difference Result 4067 states and 5619 transitions. [2020-08-18 19:32:40,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 19:32:40,615 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 136 [2020-08-18 19:32:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:32:40,632 INFO L225 Difference]: With dead ends: 4067 [2020-08-18 19:32:40,632 INFO L226 Difference]: Without dead ends: 2271 [2020-08-18 19:32:40,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-08-18 19:32:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2020-08-18 19:32:40,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 1932. [2020-08-18 19:32:40,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2020-08-18 19:32:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2544 transitions. [2020-08-18 19:32:40,715 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2544 transitions. Word has length 136 [2020-08-18 19:32:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:32:40,715 INFO L479 AbstractCegarLoop]: Abstraction has 1932 states and 2544 transitions. [2020-08-18 19:32:40,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 19:32:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2544 transitions. [2020-08-18 19:32:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-08-18 19:32:40,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:32:40,724 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, 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] [2020-08-18 19:32:40,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 19:32:40,724 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:32:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:32:40,725 INFO L82 PathProgramCache]: Analyzing trace with hash -799528492, now seen corresponding path program 1 times [2020-08-18 19:32:40,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:32:40,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960593328] [2020-08-18 19:32:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:32:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:32:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 19:32:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:32:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:32:40,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960593328] [2020-08-18 19:32:40,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:32:40,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 19:32:40,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707301982] [2020-08-18 19:32:40,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 19:32:40,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:32:40,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 19:32:40,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:32:40,962 INFO L87 Difference]: Start difference. First operand 1932 states and 2544 transitions. Second operand 8 states. [2020-08-18 19:32:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:32:42,843 INFO L93 Difference]: Finished difference Result 5634 states and 7678 transitions. [2020-08-18 19:32:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 19:32:42,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-08-18 19:32:42,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:32:42,844 INFO L225 Difference]: With dead ends: 5634 [2020-08-18 19:32:42,845 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 19:32:42,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-08-18 19:32:42,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 19:32:42,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 19:32:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 19:32:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 19:32:42,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-08-18 19:32:42,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:32:42,862 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 19:32:42,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 19:32:42,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 19:32:42,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 19:32:42,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 19:32:42,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 19:32:43,222 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 39 [2020-08-18 19:32:43,821 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 44 [2020-08-18 19:32:43,957 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-08-18 19:32:44,071 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-08-18 19:32:44,075 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 19:32:44,076 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-18 19:32:44,076 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 19:32:44,076 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,076 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-18 19:32:44,077 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-18 19:32:44,078 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-18 19:32:44,078 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-18 19:32:44,078 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-18 19:32:44,078 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,079 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-18 19:32:44,080 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-18 19:32:44,081 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-18 19:32:44,081 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-18 19:32:44,081 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-18 19:32:44,081 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-18 19:32:44,081 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-18 19:32:44,081 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,082 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,083 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,083 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,083 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,083 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 451) no Hoare annotation was computed. [2020-08-18 19:32:44,083 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-18 19:32:44,084 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,085 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,086 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,086 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-18 19:32:44,086 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-18 19:32:44,086 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-18 19:32:44,086 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-18 19:32:44,087 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-18 19:32:44,088 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-18 19:32:44,088 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-18 19:32:44,088 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,088 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,088 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,088 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-18 19:32:44,089 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-18 19:32:44,090 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-18 19:32:44,090 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-18 19:32:44,090 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-18 19:32:44,090 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-18 19:32:44,090 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-18 19:32:44,090 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,091 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,092 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,092 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-18 19:32:44,092 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,092 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-18 19:32:44,092 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,092 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-18 19:32:44,093 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-18 19:32:44,094 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-18 19:32:44,094 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-18 19:32:44,102 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-18 19:32:44,102 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-18 19:32:44,102 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-18 19:32:44,102 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,103 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-18 19:32:44,104 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-18 19:32:44,105 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-18 19:32:44,105 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-18 19:32:44,105 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-18 19:32:44,105 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-18 19:32:44,105 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,105 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-18 19:32:44,106 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-18 19:32:44,107 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-18 19:32:44,108 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-18 19:32:44,108 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-18 19:32:44,108 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-18 19:32:44,108 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,108 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,108 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,109 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (= ~a17~0 8)) (.cse8 (= ~a28~0 |old(~a28~0)|)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a11~0 |old(~a11~0)|)) (.cse14 (= ~a25~0 |old(~a25~0)|)) (.cse12 (= ~a19~0 |old(~a19~0)|))) (let ((.cse3 (and .cse8 .cse9 .cse10 .cse14 .cse12)) (.cse1 (= |old(~a19~0)| 1)) (.cse2 (not (<= |old(~a17~0)| 8))) (.cse0 (= 8 |old(~a28~0)|)) (.cse4 (and .cse8 .cse10 .cse14 .cse13 .cse12)) (.cse7 (not (= |old(~a25~0)| 1))) (.cse11 (= ~a25~0 1)) (.cse5 (not (= 8 |old(~a17~0)|))) (.cse6 (= |old(~a11~0)| 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse3 (not (<= 10 |old(~a28~0)|))) (or .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse7 .cse2 (and .cse8 .cse9 .cse10 .cse11 .cse12)) (or .cse0 .cse4 .cse5) (or .cse7 (and .cse8 .cse10 .cse13 .cse11 .cse12) .cse5 .cse6)))) [2020-08-18 19:32:44,110 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,110 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,110 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,110 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-18 19:32:44,110 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-18 19:32:44,110 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-18 19:32:44,111 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,112 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-18 19:32:44,118 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-18 19:32:44,119 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-18 19:32:44,120 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-18 19:32:44,121 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-18 19:32:44,121 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,121 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,121 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,121 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-18 19:32:44,122 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-18 19:32:44,123 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-18 19:32:44,123 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-18 19:32:44,123 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-18 19:32:44,124 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-18 19:32:44,125 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 19:32:44,125 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (not (= ~a28~0 8)) (= ~a17~0 8)) [2020-08-18 19:32:44,125 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 19:32:44,125 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 19:32:44,125 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (= 8 |old(~a28~0)|) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a11~0)| 0))) [2020-08-18 19:32:44,125 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (= ~a25~0 1)) (.cse2 (= ~a17~0 8)) (.cse4 (not (= ~a11~0 1))) (.cse1 (not (= ~a28~0 8))) (.cse5 (not (= ~a19~0 1))) (.cse0 (<= ~a17~0 8))) (or (and (<= 10 ~a28~0) .cse0) (= 8 |old(~a28~0)|) (and .cse1 .cse2) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse3 .cse0) (and .cse2 .cse5 .cse4) (and .cse1 .cse5 .cse0))) [2020-08-18 19:32:44,125 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-18 19:32:44,126 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-18 19:32:44,127 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= ~a25~0 1)) (.cse2 (= ~a17~0 8)) (.cse4 (not (= ~a11~0 1))) (.cse1 (not (= ~a28~0 8))) (.cse5 (not (= ~a19~0 1))) (.cse0 (<= ~a17~0 8))) (or (and (<= 10 ~a28~0) .cse0) (= 8 |old(~a28~0)|) (and .cse1 .cse2) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse3 .cse0) (and .cse2 .cse5 .cse4) (and .cse1 .cse5 .cse0))) [2020-08-18 19:32:44,127 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-18 19:32:44,127 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-18 19:32:44,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 07:32:44 BoogieIcfgContainer [2020-08-18 19:32:44,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 19:32:44,162 INFO L168 Benchmark]: Toolchain (without parser) took 14109.28 ms. Allocated memory was 143.1 MB in the beginning and 379.6 MB in the end (delta: 236.5 MB). Free memory was 104.8 MB in the beginning and 129.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 244.4 MB. Max. memory is 7.1 GB. [2020-08-18 19:32:44,163 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-08-18 19:32:44,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.33 ms. Allocated memory was 143.1 MB in the beginning and 207.6 MB in the end (delta: 64.5 MB). Free memory was 104.6 MB in the beginning and 174.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-08-18 19:32:44,165 INFO L168 Benchmark]: Boogie Preprocessor took 138.91 ms. Allocated memory is still 207.6 MB. Free memory was 174.7 MB in the beginning and 170.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-18 19:32:44,166 INFO L168 Benchmark]: RCFGBuilder took 1388.19 ms. Allocated memory was 207.6 MB in the beginning and 235.4 MB in the end (delta: 27.8 MB). Free memory was 170.1 MB in the beginning and 174.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-08-18 19:32:44,167 INFO L168 Benchmark]: TraceAbstraction took 11816.37 ms. Allocated memory was 235.4 MB in the beginning and 379.6 MB in the end (delta: 144.2 MB). Free memory was 173.0 MB in the beginning and 129.0 MB in the end (delta: 44.0 MB). Peak memory consumption was 220.4 MB. Max. memory is 7.1 GB. [2020-08-18 19:32:44,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.33 ms. Allocated memory was 143.1 MB in the beginning and 207.6 MB in the end (delta: 64.5 MB). Free memory was 104.6 MB in the beginning and 174.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.91 ms. Allocated memory is still 207.6 MB. Free memory was 174.7 MB in the beginning and 170.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1388.19 ms. Allocated memory was 207.6 MB in the beginning and 235.4 MB in the end (delta: 27.8 MB). Free memory was 170.1 MB in the beginning and 174.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11816.37 ms. Allocated memory was 235.4 MB in the beginning and 379.6 MB in the end (delta: 144.2 MB). Free memory was 173.0 MB in the beginning and 129.0 MB in the end (delta: 44.0 MB). Peak memory consumption was 220.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 451]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((10 <= a28 && a17 <= 8) || 8 == \old(a28)) || (!(a28 == 8) && a17 == 8)) || !(8 == \old(a17))) || ((a17 == 8 && a25 == 1) && !(a11 == 1))) || !(\old(a11) <= 0)) || ((!(a28 == 8) && a25 == 1) && a17 <= 8)) || ((a17 == 8 && !(a19 == 1)) && !(a11 == 1))) || ((!(a28 == 8) && !(a19 == 1)) && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 194 SDtfs, 3255 SDslu, 179 SDs, 0 SdLazy, 4230 SolverSat, 1177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1932occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 384 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 131 NumberOfFragments, 398 HoareAnnotationTreeSize, 71 FomulaSimplifications, 26322 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2121 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 624 NumberOfCodeBlocks, 624 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 263607 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 112/120 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...