/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:10:51,514 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 21:10:51,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:10:51,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:10:51,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:10:51,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 21:10:51,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:10:51,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:10:51,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:10:51,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:10:51,633 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:10:51,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:10:51,633 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:10:51,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:10:51,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:10:51,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:10:51,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:10:51,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:10:51,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:10:51,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:10:51,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:10:51,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:10:51,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:10:51,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:10:51,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:10:51,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:10:51,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:10:51,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:10:51,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:10:51,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:10:51,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:10:51,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:10:51,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:10:51,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:10:51,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:10:51,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; [2020-08-18 21:10:51,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:10:51,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:10:52,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:10:52,004 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:10:52,005 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:10:52,006 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-08-18 21:10:52,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e06993b93/dfbd4459850e466d86a4896c50dfe55a/FLAGc19ab9736 [2020-08-18 21:10:52,640 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:10:52,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-08-18 21:10:52,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e06993b93/dfbd4459850e466d86a4896c50dfe55a/FLAGc19ab9736 [2020-08-18 21:10:52,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e06993b93/dfbd4459850e466d86a4896c50dfe55a [2020-08-18 21:10:52,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:10:52,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:10:52,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:10:52,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:10:52,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:10:52,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:10:52" (1/1) ... [2020-08-18 21:10:52,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:52, skipping insertion in model container [2020-08-18 21:10:52,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:10:52" (1/1) ... [2020-08-18 21:10:52,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:10:53,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:10:53,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:10:53,618 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:10:53,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:10:53,766 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:10:53,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53 WrapperNode [2020-08-18 21:10:53,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:10:53,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:10:53,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:10:53,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:10:53,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... [2020-08-18 21:10:53,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:10:53,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:10:53,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:10:53,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:10:53,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:10:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:10:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:10:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 21:10:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:10:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 21:10:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:10:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:10:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 21:10:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:10:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:10:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:10:55,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:10:55,332 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 21:10:55,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:10:55 BoogieIcfgContainer [2020-08-18 21:10:55,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:10:55,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:10:55,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:10:55,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:10:55,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:10:52" (1/3) ... [2020-08-18 21:10:55,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe8f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:10:55, skipping insertion in model container [2020-08-18 21:10:55,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:10:53" (2/3) ... [2020-08-18 21:10:55,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe8f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:10:55, skipping insertion in model container [2020-08-18 21:10:55,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:10:55" (3/3) ... [2020-08-18 21:10:55,349 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-08-18 21:10:55,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:10:55,369 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:10:55,384 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:10:55,411 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:10:55,412 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:10:55,412 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:10:55,412 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:10:55,412 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:10:55,412 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:10:55,413 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:10:55,413 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:10:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-18 21:10:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-18 21:10:55,451 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:10:55,452 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] [2020-08-18 21:10:55,453 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:10:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:10:55,462 INFO L82 PathProgramCache]: Analyzing trace with hash -576444522, now seen corresponding path program 1 times [2020-08-18 21:10:55,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:10:55,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152244527] [2020-08-18 21:10:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:10:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:10:55,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:10:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:10:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:10:55,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152244527] [2020-08-18 21:10:55,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:10:55,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:10:55,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374086591] [2020-08-18 21:10:55,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:10:55,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:10:55,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:10:55,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:10:55,944 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-18 21:10:58,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:10:58,105 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-08-18 21:10:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 21:10:58,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-08-18 21:10:58,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:10:58,127 INFO L225 Difference]: With dead ends: 730 [2020-08-18 21:10:58,128 INFO L226 Difference]: Without dead ends: 447 [2020-08-18 21:10:58,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:10:58,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-18 21:10:58,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-08-18 21:10:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-18 21:10:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-08-18 21:10:58,227 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 55 [2020-08-18 21:10:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:10:58,228 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-08-18 21:10:58,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:10:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-08-18 21:10:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 21:10:58,235 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:10:58,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:10:58,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:10:58,236 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:10:58,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:10:58,237 INFO L82 PathProgramCache]: Analyzing trace with hash -913027315, now seen corresponding path program 1 times [2020-08-18 21:10:58,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:10:58,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681758706] [2020-08-18 21:10:58,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:10:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:10:58,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:10:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:10:58,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:10:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:10:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:10:58,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681758706] [2020-08-18 21:10:58,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:10:58,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 21:10:58,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521786632] [2020-08-18 21:10:58,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:10:58,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:10:58,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:10:58,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:10:58,583 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-08-18 21:11:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:00,202 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-08-18 21:11:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 21:11:00,202 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-08-18 21:11:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:00,208 INFO L225 Difference]: With dead ends: 1041 [2020-08-18 21:11:00,208 INFO L226 Difference]: Without dead ends: 606 [2020-08-18 21:11:00,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-18 21:11:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-08-18 21:11:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-08-18 21:11:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-08-18 21:11:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-08-18 21:11:00,251 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 128 [2020-08-18 21:11:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:00,252 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-08-18 21:11:00,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:11:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-08-18 21:11:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 21:11:00,259 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:00,260 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:00,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:11:00,260 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:00,261 INFO L82 PathProgramCache]: Analyzing trace with hash 952189433, now seen corresponding path program 1 times [2020-08-18 21:11:00,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:00,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332991488] [2020-08-18 21:11:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:00,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 31 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:00,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332991488] [2020-08-18 21:11:00,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:00,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 21:11:00,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179939657] [2020-08-18 21:11:00,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:11:00,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:00,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:11:00,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:11:00,545 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 8 states. [2020-08-18 21:11:02,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:02,360 INFO L93 Difference]: Finished difference Result 1823 states and 2680 transitions. [2020-08-18 21:11:02,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 21:11:02,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 134 [2020-08-18 21:11:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:02,382 INFO L225 Difference]: With dead ends: 1823 [2020-08-18 21:11:02,382 INFO L226 Difference]: Without dead ends: 1210 [2020-08-18 21:11:02,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-08-18 21:11:02,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-08-18 21:11:02,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1035. [2020-08-18 21:11:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-08-18 21:11:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1482 transitions. [2020-08-18 21:11:02,473 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1482 transitions. Word has length 134 [2020-08-18 21:11:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:02,473 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1482 transitions. [2020-08-18 21:11:02,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:11:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1482 transitions. [2020-08-18 21:11:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-08-18 21:11:02,480 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:02,481 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:02,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:11:02,481 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:02,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:02,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1800499558, now seen corresponding path program 1 times [2020-08-18 21:11:02,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:02,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991380069] [2020-08-18 21:11:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:02,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:02,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991380069] [2020-08-18 21:11:02,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:11:02,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:11:02,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692546855] [2020-08-18 21:11:02,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:11:02,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:02,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:11:02,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:11:02,726 INFO L87 Difference]: Start difference. First operand 1035 states and 1482 transitions. Second operand 7 states. [2020-08-18 21:11:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:04,087 INFO L93 Difference]: Finished difference Result 2666 states and 3891 transitions. [2020-08-18 21:11:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 21:11:04,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-08-18 21:11:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:04,098 INFO L225 Difference]: With dead ends: 2666 [2020-08-18 21:11:04,099 INFO L226 Difference]: Without dead ends: 1637 [2020-08-18 21:11:04,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:11:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2020-08-18 21:11:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1484. [2020-08-18 21:11:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1484 states. [2020-08-18 21:11:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 2105 transitions. [2020-08-18 21:11:04,158 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 2105 transitions. Word has length 145 [2020-08-18 21:11:04,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:04,158 INFO L479 AbstractCegarLoop]: Abstraction has 1484 states and 2105 transitions. [2020-08-18 21:11:04,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:11:04,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 2105 transitions. [2020-08-18 21:11:04,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-18 21:11:04,162 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:04,162 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:04,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:11:04,163 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:04,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:04,163 INFO L82 PathProgramCache]: Analyzing trace with hash -296475546, now seen corresponding path program 1 times [2020-08-18 21:11:04,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:04,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956111104] [2020-08-18 21:11:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:04,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956111104] [2020-08-18 21:11:04,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:11:04,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 21:11:04,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261398848] [2020-08-18 21:11:04,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:11:04,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:04,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:11:04,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:11:04,377 INFO L87 Difference]: Start difference. First operand 1484 states and 2105 transitions. Second operand 8 states. [2020-08-18 21:11:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:06,691 INFO L93 Difference]: Finished difference Result 4289 states and 6334 transitions. [2020-08-18 21:11:06,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 21:11:06,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2020-08-18 21:11:06,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:06,714 INFO L225 Difference]: With dead ends: 4289 [2020-08-18 21:11:06,714 INFO L226 Difference]: Without dead ends: 2954 [2020-08-18 21:11:06,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-08-18 21:11:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2020-08-18 21:11:06,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2658. [2020-08-18 21:11:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2658 states. [2020-08-18 21:11:06,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3652 transitions. [2020-08-18 21:11:06,856 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3652 transitions. Word has length 167 [2020-08-18 21:11:06,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:06,857 INFO L479 AbstractCegarLoop]: Abstraction has 2658 states and 3652 transitions. [2020-08-18 21:11:06,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:11:06,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3652 transitions. [2020-08-18 21:11:06,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-18 21:11:06,860 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:06,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:06,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:11:06,862 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:06,863 INFO L82 PathProgramCache]: Analyzing trace with hash 528848677, now seen corresponding path program 1 times [2020-08-18 21:11:06,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:06,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828286704] [2020-08-18 21:11:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:06,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:11:07,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828286704] [2020-08-18 21:11:07,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:11:07,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:11:07,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876420986] [2020-08-18 21:11:07,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:11:07,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:07,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:11:07,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:11:07,158 INFO L87 Difference]: Start difference. First operand 2658 states and 3652 transitions. Second operand 7 states. [2020-08-18 21:11:08,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:08,653 INFO L93 Difference]: Finished difference Result 5471 states and 7542 transitions. [2020-08-18 21:11:08,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 21:11:08,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-08-18 21:11:08,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:08,673 INFO L225 Difference]: With dead ends: 5471 [2020-08-18 21:11:08,678 INFO L226 Difference]: Without dead ends: 2819 [2020-08-18 21:11:08,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-18 21:11:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2020-08-18 21:11:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2803. [2020-08-18 21:11:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2803 states. [2020-08-18 21:11:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3806 transitions. [2020-08-18 21:11:08,789 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3806 transitions. Word has length 172 [2020-08-18 21:11:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:08,791 INFO L479 AbstractCegarLoop]: Abstraction has 2803 states and 3806 transitions. [2020-08-18 21:11:08,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:11:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3806 transitions. [2020-08-18 21:11:08,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-08-18 21:11:08,796 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:08,796 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:11:08,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 21:11:08,797 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:08,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:08,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1554258013, now seen corresponding path program 1 times [2020-08-18 21:11:08,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:08,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983771240] [2020-08-18 21:11:08,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:08,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:08,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:08,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 21:11:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 160 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 21:11:09,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983771240] [2020-08-18 21:11:09,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:09,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 21:11:09,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634413232] [2020-08-18 21:11:09,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 21:11:09,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:09,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 21:11:09,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 21:11:09,088 INFO L87 Difference]: Start difference. First operand 2803 states and 3806 transitions. Second operand 10 states. [2020-08-18 21:11:13,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:13,094 INFO L93 Difference]: Finished difference Result 6484 states and 8887 transitions. [2020-08-18 21:11:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-18 21:11:13,096 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-08-18 21:11:13,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:13,115 INFO L225 Difference]: With dead ends: 6484 [2020-08-18 21:11:13,115 INFO L226 Difference]: Without dead ends: 3830 [2020-08-18 21:11:13,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2020-08-18 21:11:13,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2020-08-18 21:11:13,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 2672. [2020-08-18 21:11:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2672 states. [2020-08-18 21:11:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3350 transitions. [2020-08-18 21:11:13,210 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3350 transitions. Word has length 204 [2020-08-18 21:11:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:13,210 INFO L479 AbstractCegarLoop]: Abstraction has 2672 states and 3350 transitions. [2020-08-18 21:11:13,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 21:11:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3350 transitions. [2020-08-18 21:11:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-18 21:11:13,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:13,216 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 21:11:13,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 21:11:13,216 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:13,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:13,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1123243390, now seen corresponding path program 1 times [2020-08-18 21:11:13,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:13,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671676594] [2020-08-18 21:11:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:13,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:13,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:13,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 21:11:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-08-18 21:11:13,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671676594] [2020-08-18 21:11:13,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:13,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 21:11:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959118941] [2020-08-18 21:11:13,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:11:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:11:13,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:11:13,466 INFO L87 Difference]: Start difference. First operand 2672 states and 3350 transitions. Second operand 5 states. [2020-08-18 21:11:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:14,747 INFO L93 Difference]: Finished difference Result 6067 states and 7726 transitions. [2020-08-18 21:11:14,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:11:14,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-08-18 21:11:14,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:14,765 INFO L225 Difference]: With dead ends: 6067 [2020-08-18 21:11:14,765 INFO L226 Difference]: Without dead ends: 3544 [2020-08-18 21:11:14,772 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 [2020-08-18 21:11:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2020-08-18 21:11:14,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3111. [2020-08-18 21:11:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3111 states. [2020-08-18 21:11:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 3989 transitions. [2020-08-18 21:11:14,874 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 3989 transitions. Word has length 237 [2020-08-18 21:11:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:14,875 INFO L479 AbstractCegarLoop]: Abstraction has 3111 states and 3989 transitions. [2020-08-18 21:11:14,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:11:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 3989 transitions. [2020-08-18 21:11:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-08-18 21:11:14,884 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:14,885 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 21:11:14,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 21:11:14,885 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash 253048858, now seen corresponding path program 1 times [2020-08-18 21:11:14,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:14,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718824032] [2020-08-18 21:11:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:15,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 21:11:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 177 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 21:11:15,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718824032] [2020-08-18 21:11:15,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:15,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 21:11:15,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481188531] [2020-08-18 21:11:15,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 21:11:15,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:15,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 21:11:15,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:11:15,707 INFO L87 Difference]: Start difference. First operand 3111 states and 3989 transitions. Second operand 11 states. [2020-08-18 21:11:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:19,029 INFO L93 Difference]: Finished difference Result 6240 states and 8085 transitions. [2020-08-18 21:11:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 21:11:19,029 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2020-08-18 21:11:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:19,044 INFO L225 Difference]: With dead ends: 6240 [2020-08-18 21:11:19,044 INFO L226 Difference]: Without dead ends: 3278 [2020-08-18 21:11:19,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2020-08-18 21:11:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2020-08-18 21:11:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3256. [2020-08-18 21:11:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3256 states. [2020-08-18 21:11:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4141 transitions. [2020-08-18 21:11:19,140 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4141 transitions. Word has length 287 [2020-08-18 21:11:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:19,141 INFO L479 AbstractCegarLoop]: Abstraction has 3256 states and 4141 transitions. [2020-08-18 21:11:19,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 21:11:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4141 transitions. [2020-08-18 21:11:19,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-08-18 21:11:19,151 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:11:19,152 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 21:11:19,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 21:11:19,152 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:11:19,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:11:19,153 INFO L82 PathProgramCache]: Analyzing trace with hash 273888777, now seen corresponding path program 1 times [2020-08-18 21:11:19,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:11:19,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605915763] [2020-08-18 21:11:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:11:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:11:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:19,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 21:11:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:19,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-18 21:11:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:11:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-08-18 21:11:19,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605915763] [2020-08-18 21:11:19,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:11:19,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 21:11:19,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978477759] [2020-08-18 21:11:19,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:11:19,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:11:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:11:19,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:11:19,535 INFO L87 Difference]: Start difference. First operand 3256 states and 4141 transitions. Second operand 5 states. [2020-08-18 21:11:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:11:20,807 INFO L93 Difference]: Finished difference Result 6653 states and 8488 transitions. [2020-08-18 21:11:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:11:20,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-08-18 21:11:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:11:20,809 INFO L225 Difference]: With dead ends: 6653 [2020-08-18 21:11:20,809 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 21:11:20,822 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 [2020-08-18 21:11:20,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 21:11:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 21:11:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 21:11:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 21:11:20,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2020-08-18 21:11:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:11:20,823 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 21:11:20,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:11:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 21:11:20,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 21:11:20,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 21:11:20,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 21:11:21,297 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 134 [2020-08-18 21:11:21,425 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 134 [2020-08-18 21:11:22,195 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 39 [2020-08-18 21:11:22,720 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 54 [2020-08-18 21:11:23,253 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 54 [2020-08-18 21:11:23,257 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 21:11:23,257 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-18 21:11:23,257 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 21:11:23,257 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-18 21:11:23,257 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,257 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-18 21:11:23,258 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 21:11:23,259 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 21:11:23,259 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 21:11:23,259 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 21:11:23,259 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 21:11:23,259 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 21:11:23,259 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-18 21:11:23,260 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 21:11:23,261 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,262 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-18 21:11:23,263 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-18 21:11:23,264 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-18 21:11:23,265 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 21:11:23,266 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,267 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 21:11:23,268 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,269 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 21:11:23,270 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,271 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-18 21:11:23,272 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-18 21:11:23,273 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a19~0)| 9))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse2 (= 2 |old(~a10~0)|))) (and (or .cse0 (not (<= 2 |old(~a10~0)|)) .cse1) (or .cse0 .cse1 (= 8 |old(~a19~0)|)) (or .cse0 (not (= 14 ~a4~0)) .cse2 (not (<= 41 |old(~a1~0)|)) (not (= ~a12~0 0))) (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse2))) [2020-08-18 21:11:23,273 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-18 21:11:23,273 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-18 21:11:23,273 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-18 21:11:23,273 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,273 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,273 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 21:11:23,274 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-18 21:11:23,275 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-18 21:11:23,276 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-18 21:11:23,277 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-18 21:11:23,278 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-18 21:11:23,279 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-18 21:11:23,280 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-18 21:11:23,280 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 21:11:23,280 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= ~a4~0 14) (<= 23 ~a1~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-08-18 21:11:23,280 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 21:11:23,280 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 21:11:23,280 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-18 21:11:23,281 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-18 21:11:23,281 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (= ~a19~0 8)) (.cse2 (<= ~a19~0 9)) (.cse0 (= 0 |old(~a10~0)|))) (or (and (<= 9 ~a19~0) (not (= ~a10~0 2)) .cse0) (and .cse1 (= ~a10~0 1) (<= 331505 ~a1~0)) (and (not .cse1) .cse2 .cse0) (and (<= 41 ~a1~0) .cse2 .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse2 (<= 2 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-08-18 21:11:23,281 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-18 21:11:23,281 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-18 21:11:23,281 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (= ~a19~0 8)) (.cse2 (<= ~a19~0 9)) (.cse0 (= 0 |old(~a10~0)|))) (or (and (<= 9 ~a19~0) (not (= ~a10~0 2)) .cse0) (and .cse1 (= ~a10~0 1) (<= 331505 ~a1~0)) (and (not .cse1) .cse2 .cse0) (and (<= 41 ~a1~0) .cse2 .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse2 (<= 2 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-08-18 21:11:23,282 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-18 21:11:23,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 09:11:23 BoogieIcfgContainer [2020-08-18 21:11:23,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 21:11:23,307 INFO L168 Benchmark]: Toolchain (without parser) took 30348.46 ms. Allocated memory was 140.5 MB in the beginning and 576.2 MB in the end (delta: 435.7 MB). Free memory was 101.7 MB in the beginning and 298.7 MB in the end (delta: -197.0 MB). Peak memory consumption was 417.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:11:23,308 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 21:11:23,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.06 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 169.5 MB in the end (delta: -68.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:11:23,310 INFO L168 Benchmark]: Boogie Preprocessor took 109.94 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-18 21:11:23,311 INFO L168 Benchmark]: RCFGBuilder took 1454.98 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 164.7 MB in the beginning and 178.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:11:23,311 INFO L168 Benchmark]: TraceAbstraction took 27964.40 ms. Allocated memory was 237.5 MB in the beginning and 576.2 MB in the end (delta: 338.7 MB). Free memory was 178.8 MB in the beginning and 298.7 MB in the end (delta: -119.8 MB). Peak memory consumption was 397.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:11:23,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 811.06 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 169.5 MB in the end (delta: -68.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.94 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 164.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1454.98 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 164.7 MB in the beginning and 178.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27964.40 ms. Allocated memory was 237.5 MB in the beginning and 576.2 MB in the end (delta: 338.7 MB). Free memory was 178.8 MB in the beginning and 298.7 MB in the end (delta: -119.8 MB). Peak memory consumption was 397.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((((((9 <= a19 && !(a10 == 2)) && 0 == \old(a10)) || ((a19 == 8 && a10 == 1) && 331505 <= a1)) || ((!(a19 == 8) && a19 <= 9) && 0 == \old(a10))) || ((41 <= a1 && a19 <= 9) && 0 == \old(a10))) || !(a12 == 0)) || !(23 <= \old(a1))) || ((a19 <= 9 && 2 <= a10) && 0 == \old(a10))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.4s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 5329 SDslu, 456 SDs, 0 SdLazy, 13197 SolverSat, 1786 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3256occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 2273 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 150 PreInvPairs, 202 NumberOfFragments, 369 HoareAnnotationTreeSize, 150 FomulaSimplifications, 45424 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9819 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1835 NumberOfCodeBlocks, 1835 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1825 ConstructedInterpolants, 0 QuantifiedInterpolants, 1234508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 937/996 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...