/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:47:13,617 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-21 19:47:13,733 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 [2020-08-21 19:47:13,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:47:13,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:47:13,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:47:13,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:47:13,755 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:47:13,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:47:13,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:47:13,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:47:13,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:47:13,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:47:13,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:47:13,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:47:13,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:47:13,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:47:13,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:47:13,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:47:13,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:47:13,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:47:13,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:47:13,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:47:13,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:47:13,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:47:13,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:47:13,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:47:13,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:47:13,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:47:13,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:47:13,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:47:13,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:47:13,760 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=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-21 19:47:14,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:47:14,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:47:14,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:47:14,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:47:14,061 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:47:14,062 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-08-21 19:47:14,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43e83d9a7/b36f4663498c44e0956062b38bafbc22/FLAGc6999d2aa [2020-08-21 19:47:14,710 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:47:14,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-08-21 19:47:14,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43e83d9a7/b36f4663498c44e0956062b38bafbc22/FLAGc6999d2aa [2020-08-21 19:47:14,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43e83d9a7/b36f4663498c44e0956062b38bafbc22 [2020-08-21 19:47:14,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:47:14,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:47:14,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:47:14,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:47:14,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:47:14,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:47:14" (1/1) ... [2020-08-21 19:47:14,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e37c865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:14, skipping insertion in model container [2020-08-21 19:47:14,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:47:14" (1/1) ... [2020-08-21 19:47:14,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:47:15,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:47:15,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:47:15,559 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:47:15,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:47:15,697 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:47:15,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15 WrapperNode [2020-08-21 19:47:15,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:47:15,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:47:15,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:47:15,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:47:15,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (1/1) ... [2020-08-21 19:47:15,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:47:15,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:47:15,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:47:15,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:47:15,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (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 [2020-08-21 19:47:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:47:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:47:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 19:47:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:47:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 19:47:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:47:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:47:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 19:47:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:47:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:47:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:47:17,170 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:47:17,171 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 19:47:17,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:47:17 BoogieIcfgContainer [2020-08-21 19:47:17,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:47:17,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:47:17,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:47:17,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:47:17,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:47:14" (1/3) ... [2020-08-21 19:47:17,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ed5d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:47:17, skipping insertion in model container [2020-08-21 19:47:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:15" (2/3) ... [2020-08-21 19:47:17,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ed5d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:47:17, skipping insertion in model container [2020-08-21 19:47:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:47:17" (3/3) ... [2020-08-21 19:47:17,187 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-08-21 19:47:17,199 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:47:17,207 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:47:17,222 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:47:17,249 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:47:17,249 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:47:17,249 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:47:17,249 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:47:17,250 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:47:17,250 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:47:17,250 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:47:17,250 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:47:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 19:47:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-21 19:47:17,286 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:17,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:17,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:17,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:17,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-08-21 19:47:17,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:17,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385356387] [2020-08-21 19:47:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:17,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385356387] [2020-08-21 19:47:17,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:47:17,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 19:47:17,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032072808] [2020-08-21 19:47:17,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:17,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:17,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:17,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:17,889 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 19:47:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:19,838 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-21 19:47:19,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:47:19,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-08-21 19:47:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:19,883 INFO L225 Difference]: With dead ends: 698 [2020-08-21 19:47:19,883 INFO L226 Difference]: Without dead ends: 423 [2020-08-21 19:47:19,895 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 [2020-08-21 19:47:19,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-21 19:47:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-21 19:47:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-21 19:47:19,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-08-21 19:47:19,991 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 100 [2020-08-21 19:47:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:19,992 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-08-21 19:47:19,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-08-21 19:47:20,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-21 19:47:20,000 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:20,000 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:20,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:47:20,001 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:20,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:20,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2020-08-21 19:47:20,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:20,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988653146] [2020-08-21 19:47:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:20,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:20,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:20,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988653146] [2020-08-21 19:47:20,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:47:20,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 19:47:20,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239285938] [2020-08-21 19:47:20,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 19:47:20,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:20,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 19:47:20,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:47:20,257 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-08-21 19:47:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:21,719 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-08-21 19:47:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:47:21,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-08-21 19:47:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:21,726 INFO L225 Difference]: With dead ends: 1130 [2020-08-21 19:47:21,726 INFO L226 Difference]: Without dead ends: 719 [2020-08-21 19:47:21,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-21 19:47:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-08-21 19:47:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-21 19:47:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-08-21 19:47:21,789 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 110 [2020-08-21 19:47:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:21,789 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-08-21 19:47:21,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 19:47:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-08-21 19:47:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-21 19:47:21,795 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:21,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:21,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:47:21,796 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:21,797 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-08-21 19:47:21,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:21,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092463999] [2020-08-21 19:47:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:21,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:21,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:21,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092463999] [2020-08-21 19:47:21,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:22,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 19:47:22,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74386699] [2020-08-21 19:47:22,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:22,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:22,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:22,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:22,002 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 5 states. [2020-08-21 19:47:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:23,086 INFO L93 Difference]: Finished difference Result 1944 states and 2781 transitions. [2020-08-21 19:47:23,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 19:47:23,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-08-21 19:47:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:23,095 INFO L225 Difference]: With dead ends: 1944 [2020-08-21 19:47:23,096 INFO L226 Difference]: Without dead ends: 1253 [2020-08-21 19:47:23,098 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 [2020-08-21 19:47:23,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-21 19:47:23,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1110. [2020-08-21 19:47:23,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-08-21 19:47:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1492 transitions. [2020-08-21 19:47:23,160 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1492 transitions. Word has length 111 [2020-08-21 19:47:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:23,161 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1492 transitions. [2020-08-21 19:47:23,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:23,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1492 transitions. [2020-08-21 19:47:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-21 19:47:23,169 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:23,169 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:23,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:47:23,170 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:23,170 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2020-08-21 19:47:23,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:23,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233143947] [2020-08-21 19:47:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:23,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:23,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:47:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 19:47:23,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233143947] [2020-08-21 19:47:23,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:23,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:23,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554534020] [2020-08-21 19:47:23,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:23,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:23,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:23,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:23,428 INFO L87 Difference]: Start difference. First operand 1110 states and 1492 transitions. Second operand 7 states. [2020-08-21 19:47:24,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:24,749 INFO L93 Difference]: Finished difference Result 2677 states and 3751 transitions. [2020-08-21 19:47:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:47:24,750 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-08-21 19:47:24,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:24,765 INFO L225 Difference]: With dead ends: 2677 [2020-08-21 19:47:24,765 INFO L226 Difference]: Without dead ends: 1573 [2020-08-21 19:47:24,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:47:24,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2020-08-21 19:47:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1120. [2020-08-21 19:47:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-08-21 19:47:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1503 transitions. [2020-08-21 19:47:24,842 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1503 transitions. Word has length 142 [2020-08-21 19:47:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:24,842 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1503 transitions. [2020-08-21 19:47:24,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1503 transitions. [2020-08-21 19:47:24,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-08-21 19:47:24,871 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:24,871 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:24,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 19:47:24,872 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:24,872 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2020-08-21 19:47:24,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:24,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203982962] [2020-08-21 19:47:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:25,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 19:47:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 19:47:25,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203982962] [2020-08-21 19:47:25,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:25,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:25,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611821488] [2020-08-21 19:47:25,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:25,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:25,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:25,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:25,160 INFO L87 Difference]: Start difference. First operand 1120 states and 1503 transitions. Second operand 7 states. [2020-08-21 19:47:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:26,803 INFO L93 Difference]: Finished difference Result 2687 states and 3686 transitions. [2020-08-21 19:47:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 19:47:26,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-08-21 19:47:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:26,813 INFO L225 Difference]: With dead ends: 2687 [2020-08-21 19:47:26,813 INFO L226 Difference]: Without dead ends: 1573 [2020-08-21 19:47:26,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2020-08-21 19:47:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1418. [2020-08-21 19:47:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2020-08-21 19:47:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1860 transitions. [2020-08-21 19:47:26,866 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1860 transitions. Word has length 146 [2020-08-21 19:47:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:26,866 INFO L479 AbstractCegarLoop]: Abstraction has 1418 states and 1860 transitions. [2020-08-21 19:47:26,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1860 transitions. [2020-08-21 19:47:26,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-21 19:47:26,874 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:26,874 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:26,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 19:47:26,875 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:26,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:26,875 INFO L82 PathProgramCache]: Analyzing trace with hash 255910170, now seen corresponding path program 1 times [2020-08-21 19:47:26,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:26,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697760095] [2020-08-21 19:47:26,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 19:47:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-21 19:47:27,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697760095] [2020-08-21 19:47:27,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:27,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 19:47:27,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763529490] [2020-08-21 19:47:27,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:27,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:27,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:27,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:27,085 INFO L87 Difference]: Start difference. First operand 1418 states and 1860 transitions. Second operand 5 states. [2020-08-21 19:47:28,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:28,160 INFO L93 Difference]: Finished difference Result 2836 states and 3728 transitions. [2020-08-21 19:47:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 19:47:28,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-08-21 19:47:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:28,174 INFO L225 Difference]: With dead ends: 2836 [2020-08-21 19:47:28,174 INFO L226 Difference]: Without dead ends: 1424 [2020-08-21 19:47:28,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:47:28,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-08-21 19:47:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1273. [2020-08-21 19:47:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1273 states. [2020-08-21 19:47:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1582 transitions. [2020-08-21 19:47:28,219 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1582 transitions. Word has length 164 [2020-08-21 19:47:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:28,220 INFO L479 AbstractCegarLoop]: Abstraction has 1273 states and 1582 transitions. [2020-08-21 19:47:28,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1582 transitions. [2020-08-21 19:47:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-08-21 19:47:28,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:28,225 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:28,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 19:47:28,225 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:28,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1440991952, now seen corresponding path program 1 times [2020-08-21 19:47:28,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:28,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868372561] [2020-08-21 19:47:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:28,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:28,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 19:47:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 19:47:28,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868372561] [2020-08-21 19:47:28,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:28,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:28,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172529297] [2020-08-21 19:47:28,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:28,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:28,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:28,439 INFO L87 Difference]: Start difference. First operand 1273 states and 1582 transitions. Second operand 7 states. [2020-08-21 19:47:29,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:29,765 INFO L93 Difference]: Finished difference Result 3009 states and 3901 transitions. [2020-08-21 19:47:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:47:29,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-08-21 19:47:29,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:29,776 INFO L225 Difference]: With dead ends: 3009 [2020-08-21 19:47:29,776 INFO L226 Difference]: Without dead ends: 1742 [2020-08-21 19:47:29,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:29,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2020-08-21 19:47:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1710. [2020-08-21 19:47:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1710 states. [2020-08-21 19:47:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2152 transitions. [2020-08-21 19:47:29,845 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2152 transitions. Word has length 166 [2020-08-21 19:47:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:29,845 INFO L479 AbstractCegarLoop]: Abstraction has 1710 states and 2152 transitions. [2020-08-21 19:47:29,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2152 transitions. [2020-08-21 19:47:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-08-21 19:47:29,852 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:29,852 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 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] [2020-08-21 19:47:29,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 19:47:29,853 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash -553810399, now seen corresponding path program 1 times [2020-08-21 19:47:29,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:29,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130426985] [2020-08-21 19:47:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:29,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 19:47:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 19:47:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-21 19:47:30,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130426985] [2020-08-21 19:47:30,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:30,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:30,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547451459] [2020-08-21 19:47:30,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:30,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:30,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:30,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:30,106 INFO L87 Difference]: Start difference. First operand 1710 states and 2152 transitions. Second operand 7 states. [2020-08-21 19:47:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:31,340 INFO L93 Difference]: Finished difference Result 3839 states and 4836 transitions. [2020-08-21 19:47:31,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:47:31,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2020-08-21 19:47:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:31,353 INFO L225 Difference]: With dead ends: 3839 [2020-08-21 19:47:31,353 INFO L226 Difference]: Without dead ends: 2135 [2020-08-21 19:47:31,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:47:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2020-08-21 19:47:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2121. [2020-08-21 19:47:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2121 states. [2020-08-21 19:47:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2605 transitions. [2020-08-21 19:47:31,427 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2605 transitions. Word has length 182 [2020-08-21 19:47:31,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:31,428 INFO L479 AbstractCegarLoop]: Abstraction has 2121 states and 2605 transitions. [2020-08-21 19:47:31,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2605 transitions. [2020-08-21 19:47:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-08-21 19:47:31,439 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:31,439 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:31,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 19:47:31,440 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:31,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:31,443 INFO L82 PathProgramCache]: Analyzing trace with hash -648776304, now seen corresponding path program 1 times [2020-08-21 19:47:31,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:31,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355467087] [2020-08-21 19:47:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:47:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 19:47:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 19:47:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-08-21 19:47:31,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355467087] [2020-08-21 19:47:31,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:31,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:31,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501213921] [2020-08-21 19:47:31,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:31,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:31,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:31,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:31,761 INFO L87 Difference]: Start difference. First operand 2121 states and 2605 transitions. Second operand 7 states. [2020-08-21 19:47:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:33,071 INFO L93 Difference]: Finished difference Result 4129 states and 5147 transitions. [2020-08-21 19:47:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 19:47:33,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-08-21 19:47:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:33,087 INFO L225 Difference]: With dead ends: 4129 [2020-08-21 19:47:33,088 INFO L226 Difference]: Without dead ends: 2149 [2020-08-21 19:47:33,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:33,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2020-08-21 19:47:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1853. [2020-08-21 19:47:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1853 states. [2020-08-21 19:47:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2258 transitions. [2020-08-21 19:47:33,145 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2258 transitions. Word has length 204 [2020-08-21 19:47:33,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:33,146 INFO L479 AbstractCegarLoop]: Abstraction has 1853 states and 2258 transitions. [2020-08-21 19:47:33,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2258 transitions. [2020-08-21 19:47:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-08-21 19:47:33,152 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:33,153 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 19:47:33,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 19:47:33,153 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:33,154 INFO L82 PathProgramCache]: Analyzing trace with hash 188921879, now seen corresponding path program 1 times [2020-08-21 19:47:33,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:33,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632617360] [2020-08-21 19:47:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:33,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:33,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 19:47:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:33,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-21 19:47:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:33,438 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-08-21 19:47:33,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632617360] [2020-08-21 19:47:33,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:33,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 19:47:33,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563633679] [2020-08-21 19:47:33,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:33,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:33,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:33,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:33,441 INFO L87 Difference]: Start difference. First operand 1853 states and 2258 transitions. Second operand 5 states. [2020-08-21 19:47:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:34,451 INFO L93 Difference]: Finished difference Result 3567 states and 4370 transitions. [2020-08-21 19:47:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 19:47:34,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-08-21 19:47:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:34,452 INFO L225 Difference]: With dead ends: 3567 [2020-08-21 19:47:34,452 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:47:34,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:47:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:47:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:47:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:47:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:47:34,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-08-21 19:47:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:34,460 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:47:34,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:47:34,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:47:34,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 19:47:34,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:47:34,747 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 45 [2020-08-21 19:47:35,729 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 45 [2020-08-21 19:47:35,924 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-08-21 19:47:36,075 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-08-21 19:47:36,079 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:47:36,080 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 19:47:36,080 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:47:36,080 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 19:47:36,080 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 19:47:36,080 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 19:47:36,081 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 19:47:36,082 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 19:47:36,083 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 19:47:36,084 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 19:47:36,085 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 19:47:36,085 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 19:47:36,085 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-08-21 19:47:36,085 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 19:47:36,085 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 19:47:36,086 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 19:47:36,086 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 19:47:36,086 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,086 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,086 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,086 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,087 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,087 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 19:47:36,087 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 19:47:36,087 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 19:47:36,087 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 19:47:36,088 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 19:47:36,088 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 19:47:36,088 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 19:47:36,088 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 19:47:36,088 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 19:47:36,088 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,089 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,089 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,089 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,089 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,089 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 19:47:36,089 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 19:47:36,090 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 19:47:36,090 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 19:47:36,090 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 19:47:36,090 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 19:47:36,090 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 19:47:36,090 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,091 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,092 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,092 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,092 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,092 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 19:47:36,092 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 19:47:36,092 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 19:47:36,093 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,094 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,094 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,094 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,094 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,094 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,094 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 19:47:36,095 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 19:47:36,096 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 19:47:36,097 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 19:47:36,098 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,099 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,099 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,099 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,099 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,099 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 19:47:36,099 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 19:47:36,100 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 19:47:36,101 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 19:47:36,101 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= |old(~a21~0)| 1)) (.cse0 (not (<= |old(~a16~0)| 5))) (.cse1 (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or .cse0 .cse1 (= |old(~a17~0)| 1)) (or .cse0 .cse1 .cse2) (or (not (<= 15 |old(~a8~0)|)) .cse1 (not .cse2)) (or (= |old(~a8~0)| 13) .cse0 .cse1) (or (not (= |old(~a20~0)| 1)) .cse1))) [2020-08-21 19:47:36,101 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 19:47:36,101 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,101 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 19:47:36,102 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 19:47:36,103 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,104 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 19:47:36,105 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 19:47:36,106 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,107 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 19:47:36,108 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 19:47:36,109 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 19:47:36,109 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 19:47:36,109 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 19:47:36,109 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 19:47:36,109 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:47:36,109 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-21 19:47:36,109 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:47:36,110 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:47:36,110 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-21 19:47:36,110 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 19:47:36,110 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (and .cse1 (not (= ~a8~0 13))) (and .cse1 (not (= ~a17~0 1))) (not (<= 15 |old(~a8~0)|)) (and .cse1 (not .cse0)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)))) [2020-08-21 19:47:36,110 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 19:47:36,111 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 19:47:36,111 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (and .cse1 (not (= ~a8~0 13))) (and .cse1 (not (= ~a17~0 1))) (not (<= 15 |old(~a8~0)|)) (and .cse1 (not .cse0)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)))) [2020-08-21 19:47:36,111 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 19:47:36,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:47:36 BoogieIcfgContainer [2020-08-21 19:47:36,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:47:36,154 INFO L168 Benchmark]: Toolchain (without parser) took 21178.80 ms. Allocated memory was 140.0 MB in the beginning and 524.8 MB in the end (delta: 384.8 MB). Free memory was 101.2 MB in the beginning and 487.0 MB in the end (delta: -385.8 MB). Peak memory consumption was 397.8 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:36,155 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-08-21 19:47:36,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.86 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 101.2 MB in the beginning and 171.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:36,157 INFO L168 Benchmark]: Boogie Preprocessor took 110.31 ms. Allocated memory is still 206.6 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:36,157 INFO L168 Benchmark]: RCFGBuilder took 1368.94 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 182.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:36,158 INFO L168 Benchmark]: TraceAbstraction took 18972.82 ms. Allocated memory was 240.1 MB in the beginning and 524.8 MB in the end (delta: 284.7 MB). Free memory was 180.5 MB in the beginning and 487.0 MB in the end (delta: -306.5 MB). Peak memory consumption was 377.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:36,162 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.86 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 101.2 MB in the beginning and 171.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.31 ms. Allocated memory is still 206.6 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1368.94 ms. Allocated memory was 206.6 MB in the beginning and 240.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 182.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18972.82 ms. Allocated memory was 240.1 MB in the beginning and 524.8 MB in the end (delta: 284.7 MB). Free memory was 180.5 MB in the beginning and 487.0 MB in the end (delta: -306.5 MB). Peak memory consumption was 377.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((!(\old(a17) == 1) || (a21 == 1 && 15 <= a8)) || (a16 <= 5 && !(a8 == 13))) || (a16 <= 5 && !(a17 == 1))) || !(15 <= \old(a8))) || (a16 <= 5 && !(a21 == 1))) || !(\old(a20) == 1)) || a20 == 1) || !(5 == \old(a16))) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 4082 SDslu, 355 SDs, 0 SdLazy, 7246 SolverSat, 1319 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2121occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1272 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 101 PreInvPairs, 127 NumberOfFragments, 359 HoareAnnotationTreeSize, 101 FomulaSimplifications, 241462 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2229 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1541 NumberOfCodeBlocks, 1541 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1531 ConstructedInterpolants, 0 QuantifiedInterpolants, 648794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 666/712 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...