/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:32:12,088 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 15:32:12,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:32:12,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:32:12,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:32:12,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:32:12,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:32:12,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:32:12,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:32:12,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:32:12,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:32:12,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:32:12,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:32:12,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:32:12,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 15:32:12,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:32:12,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:32:12,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:32:12,158 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 15:32:12,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:32:12,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:32:12,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:32:12,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:32:12,185 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:32:12,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:32:12,186 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:32:12,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:32:12,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:32:12,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:32:12,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:32:12,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:32:12,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:32:12,187 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:32:12,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:32:12,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:32:12,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:32:12,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:32:12,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:32:12,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:32:12,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:32:12,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:32:12,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:32:12,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:32:12,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:32:12,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:32:12,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:32:12,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:32:12,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:32:12,190 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 -> false [2020-08-18 15:32:12,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:32:12,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:32:12,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:32:12,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:32:12,519 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:32:12,519 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-08-18 15:32:12,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/137860f6e/c1751324b9474ca3a2327469c65ac984/FLAG816401eb1 [2020-08-18 15:32:13,112 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:32:13,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-08-18 15:32:13,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/137860f6e/c1751324b9474ca3a2327469c65ac984/FLAG816401eb1 [2020-08-18 15:32:13,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/137860f6e/c1751324b9474ca3a2327469c65ac984 [2020-08-18 15:32:13,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:32:13,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:32:13,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:32:13,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:32:13,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:32:13,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:32:13" (1/1) ... [2020-08-18 15:32:13,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445b6256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:13, skipping insertion in model container [2020-08-18 15:32:13,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:32:13" (1/1) ... [2020-08-18 15:32:13,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:32:13,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:32:14,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:32:14,084 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:32:14,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:32:14,263 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:32:14,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14 WrapperNode [2020-08-18 15:32:14,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:32:14,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:32:14,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:32:14,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:32:14,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (1/1) ... [2020-08-18 15:32:14,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:32:14,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:32:14,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:32:14,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:32:14,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (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 15:32:14,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:32:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:32:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 15:32:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:32:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 15:32:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:32:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 15:32:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 15:32:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:32:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:32:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:32:15,842 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:32:15,843 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 15:32:15,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:32:15 BoogieIcfgContainer [2020-08-18 15:32:15,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:32:15,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:32:15,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:32:15,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:32:15,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:32:13" (1/3) ... [2020-08-18 15:32:15,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8f4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:32:15, skipping insertion in model container [2020-08-18 15:32:15,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:32:14" (2/3) ... [2020-08-18 15:32:15,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8f4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:32:15, skipping insertion in model container [2020-08-18 15:32:15,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:32:15" (3/3) ... [2020-08-18 15:32:15,866 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label05.c [2020-08-18 15:32:15,878 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:32:15,889 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:32:15,904 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:32:15,939 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:32:15,940 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:32:15,940 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:32:15,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:32:15,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:32:15,941 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:32:15,941 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:32:15,941 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:32:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-18 15:32:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 15:32:15,984 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:15,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:32:15,986 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:15,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1575146953, now seen corresponding path program 1 times [2020-08-18 15:32:16,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:16,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484456556] [2020-08-18 15:32:16,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:16,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:16,431 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 15:32:16,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484456556] [2020-08-18 15:32:16,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:32:16,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 15:32:16,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344641304] [2020-08-18 15:32:16,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 15:32:16,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:16,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 15:32:16,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 15:32:16,459 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-08-18 15:32:18,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:18,100 INFO L93 Difference]: Finished difference Result 596 states and 1021 transitions. [2020-08-18 15:32:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 15:32:18,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-08-18 15:32:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:18,119 INFO L225 Difference]: With dead ends: 596 [2020-08-18 15:32:18,119 INFO L226 Difference]: Without dead ends: 302 [2020-08-18 15:32:18,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:32:18,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-08-18 15:32:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 298. [2020-08-18 15:32:18,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-08-18 15:32:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 430 transitions. [2020-08-18 15:32:18,208 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 430 transitions. Word has length 58 [2020-08-18 15:32:18,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:18,209 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 430 transitions. [2020-08-18 15:32:18,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 15:32:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 430 transitions. [2020-08-18 15:32:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-18 15:32:18,216 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:18,216 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:18,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:32:18,217 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:18,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2054791822, now seen corresponding path program 1 times [2020-08-18 15:32:18,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:18,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284508031] [2020-08-18 15:32:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:18,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:18,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:32:18,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284508031] [2020-08-18 15:32:18,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:32:18,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 15:32:18,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281121293] [2020-08-18 15:32:18,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:32:18,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:18,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:32:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:32:18,593 INFO L87 Difference]: Start difference. First operand 298 states and 430 transitions. Second operand 8 states. [2020-08-18 15:32:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:20,727 INFO L93 Difference]: Finished difference Result 1198 states and 1805 transitions. [2020-08-18 15:32:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 15:32:20,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-18 15:32:20,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:20,737 INFO L225 Difference]: With dead ends: 1198 [2020-08-18 15:32:20,738 INFO L226 Difference]: Without dead ends: 906 [2020-08-18 15:32:20,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-08-18 15:32:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-08-18 15:32:20,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 894. [2020-08-18 15:32:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-08-18 15:32:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1231 transitions. [2020-08-18 15:32:20,821 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1231 transitions. Word has length 132 [2020-08-18 15:32:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:20,822 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1231 transitions. [2020-08-18 15:32:20,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:32:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1231 transitions. [2020-08-18 15:32:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-18 15:32:20,828 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:20,828 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:20,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 15:32:20,829 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:20,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:20,829 INFO L82 PathProgramCache]: Analyzing trace with hash -2085474635, now seen corresponding path program 1 times [2020-08-18 15:32:20,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:20,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197380039] [2020-08-18 15:32:20,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:21,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:21,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:32:21,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197380039] [2020-08-18 15:32:21,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:32:21,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:32:21,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250002588] [2020-08-18 15:32:21,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:32:21,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:21,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:32:21,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:32:21,158 INFO L87 Difference]: Start difference. First operand 894 states and 1231 transitions. Second operand 8 states. [2020-08-18 15:32:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:22,994 INFO L93 Difference]: Finished difference Result 2397 states and 3360 transitions. [2020-08-18 15:32:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 15:32:22,998 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 137 [2020-08-18 15:32:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:23,013 INFO L225 Difference]: With dead ends: 2397 [2020-08-18 15:32:23,014 INFO L226 Difference]: Without dead ends: 1482 [2020-08-18 15:32:23,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-08-18 15:32:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2020-08-18 15:32:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1478. [2020-08-18 15:32:23,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1478 states. [2020-08-18 15:32:23,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2069 transitions. [2020-08-18 15:32:23,113 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2069 transitions. Word has length 137 [2020-08-18 15:32:23,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:23,114 INFO L479 AbstractCegarLoop]: Abstraction has 1478 states and 2069 transitions. [2020-08-18 15:32:23,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:32:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2069 transitions. [2020-08-18 15:32:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-18 15:32:23,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:23,128 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:23,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 15:32:23,128 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:23,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:23,129 INFO L82 PathProgramCache]: Analyzing trace with hash 641153941, now seen corresponding path program 1 times [2020-08-18 15:32:23,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:23,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183377947] [2020-08-18 15:32:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:23,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:23,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:32:23,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183377947] [2020-08-18 15:32:23,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:32:23,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 15:32:23,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338337610] [2020-08-18 15:32:23,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:32:23,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:23,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:32:23,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:32:23,392 INFO L87 Difference]: Start difference. First operand 1478 states and 2069 transitions. Second operand 8 states. [2020-08-18 15:32:24,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:24,894 INFO L93 Difference]: Finished difference Result 3592 states and 5347 transitions. [2020-08-18 15:32:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 15:32:24,894 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-08-18 15:32:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:24,913 INFO L225 Difference]: With dead ends: 3592 [2020-08-18 15:32:24,913 INFO L226 Difference]: Without dead ends: 2263 [2020-08-18 15:32:24,919 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 15:32:24,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-08-18 15:32:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1931. [2020-08-18 15:32:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-08-18 15:32:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2630 transitions. [2020-08-18 15:32:25,039 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2630 transitions. Word has length 153 [2020-08-18 15:32:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:25,041 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2630 transitions. [2020-08-18 15:32:25,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:32:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2630 transitions. [2020-08-18 15:32:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-18 15:32:25,043 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:25,043 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:25,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 15:32:25,044 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:25,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1883378406, now seen corresponding path program 1 times [2020-08-18 15:32:25,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:25,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281228284] [2020-08-18 15:32:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:25,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:25,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:32:25,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281228284] [2020-08-18 15:32:25,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:32:25,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 15:32:25,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511776376] [2020-08-18 15:32:25,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:32:25,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:25,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:32:25,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:32:25,327 INFO L87 Difference]: Start difference. First operand 1931 states and 2630 transitions. Second operand 7 states. [2020-08-18 15:32:26,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:26,592 INFO L93 Difference]: Finished difference Result 4023 states and 5493 transitions. [2020-08-18 15:32:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 15:32:26,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-08-18 15:32:26,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:26,612 INFO L225 Difference]: With dead ends: 4023 [2020-08-18 15:32:26,613 INFO L226 Difference]: Without dead ends: 2098 [2020-08-18 15:32:26,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-18 15:32:26,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-08-18 15:32:26,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2084. [2020-08-18 15:32:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-08-18 15:32:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2810 transitions. [2020-08-18 15:32:26,697 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2810 transitions. Word has length 154 [2020-08-18 15:32:26,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:26,698 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2810 transitions. [2020-08-18 15:32:26,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:32:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2810 transitions. [2020-08-18 15:32:26,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-08-18 15:32:26,702 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:26,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:26,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 15:32:26,704 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:26,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1913054291, now seen corresponding path program 1 times [2020-08-18 15:32:26,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:26,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246946635] [2020-08-18 15:32:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:26,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 47 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:32:26,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246946635] [2020-08-18 15:32:26,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:32:26,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:32:26,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725925010] [2020-08-18 15:32:26,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:32:26,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:26,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:32:26,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:32:26,970 INFO L87 Difference]: Start difference. First operand 2084 states and 2810 transitions. Second operand 7 states. [2020-08-18 15:32:28,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:28,873 INFO L93 Difference]: Finished difference Result 2962 states and 4013 transitions. [2020-08-18 15:32:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 15:32:28,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-08-18 15:32:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:28,890 INFO L225 Difference]: With dead ends: 2962 [2020-08-18 15:32:28,890 INFO L226 Difference]: Without dead ends: 2960 [2020-08-18 15:32:28,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-18 15:32:28,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2020-08-18 15:32:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2088. [2020-08-18 15:32:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2020-08-18 15:32:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2813 transitions. [2020-08-18 15:32:28,968 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2813 transitions. Word has length 173 [2020-08-18 15:32:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:28,968 INFO L479 AbstractCegarLoop]: Abstraction has 2088 states and 2813 transitions. [2020-08-18 15:32:28,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:32:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2813 transitions. [2020-08-18 15:32:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-08-18 15:32:28,974 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:28,974 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 15:32:28,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 15:32:28,975 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:28,975 INFO L82 PathProgramCache]: Analyzing trace with hash -50393598, now seen corresponding path program 1 times [2020-08-18 15:32:28,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:28,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203761178] [2020-08-18 15:32:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:29,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:29,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 15:32:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 15:32:29,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203761178] [2020-08-18 15:32:29,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:32:29,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 15:32:29,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734845850] [2020-08-18 15:32:29,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 15:32:29,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:29,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 15:32:29,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:32:29,772 INFO L87 Difference]: Start difference. First operand 2088 states and 2813 transitions. Second operand 12 states. [2020-08-18 15:32:30,844 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-08-18 15:32:33,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:33,669 INFO L93 Difference]: Finished difference Result 4343 states and 5920 transitions. [2020-08-18 15:32:33,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-18 15:32:33,670 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 247 [2020-08-18 15:32:33,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:33,685 INFO L225 Difference]: With dead ends: 4343 [2020-08-18 15:32:33,685 INFO L226 Difference]: Without dead ends: 2404 [2020-08-18 15:32:33,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2020-08-18 15:32:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2020-08-18 15:32:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2386. [2020-08-18 15:32:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-08-18 15:32:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3161 transitions. [2020-08-18 15:32:33,778 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3161 transitions. Word has length 247 [2020-08-18 15:32:33,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:33,779 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 3161 transitions. [2020-08-18 15:32:33,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 15:32:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3161 transitions. [2020-08-18 15:32:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-08-18 15:32:33,787 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:33,787 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 15:32:33,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 15:32:33,788 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:33,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1067229009, now seen corresponding path program 1 times [2020-08-18 15:32:33,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:33,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463747363] [2020-08-18 15:32:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:33,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:33,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:34,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 15:32:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 15:32:34,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463747363] [2020-08-18 15:32:34,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:32:34,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 15:32:34,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563838042] [2020-08-18 15:32:34,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 15:32:34,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:34,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 15:32:34,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:32:34,321 INFO L87 Difference]: Start difference. First operand 2386 states and 3161 transitions. Second operand 9 states. [2020-08-18 15:32:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:36,886 INFO L93 Difference]: Finished difference Result 5078 states and 6816 transitions. [2020-08-18 15:32:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 15:32:36,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 292 [2020-08-18 15:32:36,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:36,901 INFO L225 Difference]: With dead ends: 5078 [2020-08-18 15:32:36,902 INFO L226 Difference]: Without dead ends: 2841 [2020-08-18 15:32:36,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-08-18 15:32:36,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2020-08-18 15:32:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2835. [2020-08-18 15:32:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2835 states. [2020-08-18 15:32:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3708 transitions. [2020-08-18 15:32:36,988 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3708 transitions. Word has length 292 [2020-08-18 15:32:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:36,988 INFO L479 AbstractCegarLoop]: Abstraction has 2835 states and 3708 transitions. [2020-08-18 15:32:36,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 15:32:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3708 transitions. [2020-08-18 15:32:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-08-18 15:32:37,001 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:37,002 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:32:37,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 15:32:37,003 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:37,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1405230736, now seen corresponding path program 1 times [2020-08-18 15:32:37,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:37,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626049864] [2020-08-18 15:32:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:37,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:37,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 15:32:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:37,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-18 15:32:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:37,474 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 336 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-08-18 15:32:37,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626049864] [2020-08-18 15:32:37,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:32:37,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 15:32:37,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900098734] [2020-08-18 15:32:37,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 15:32:37,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:37,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 15:32:37,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:32:37,492 INFO L87 Difference]: Start difference. First operand 2835 states and 3708 transitions. Second operand 9 states. [2020-08-18 15:32:40,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:40,427 INFO L93 Difference]: Finished difference Result 6818 states and 8969 transitions. [2020-08-18 15:32:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 15:32:40,431 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 364 [2020-08-18 15:32:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:40,445 INFO L225 Difference]: With dead ends: 6818 [2020-08-18 15:32:40,445 INFO L226 Difference]: Without dead ends: 3240 [2020-08-18 15:32:40,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-08-18 15:32:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2020-08-18 15:32:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2378. [2020-08-18 15:32:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2378 states. [2020-08-18 15:32:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2771 transitions. [2020-08-18 15:32:40,521 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2771 transitions. Word has length 364 [2020-08-18 15:32:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:40,522 INFO L479 AbstractCegarLoop]: Abstraction has 2378 states and 2771 transitions. [2020-08-18 15:32:40,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 15:32:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2771 transitions. [2020-08-18 15:32:40,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-08-18 15:32:40,534 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:32:40,534 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:32:40,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 15:32:40,535 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:32:40,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:32:40,535 INFO L82 PathProgramCache]: Analyzing trace with hash -847886279, now seen corresponding path program 1 times [2020-08-18 15:32:40,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:32:40,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345079090] [2020-08-18 15:32:40,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:32:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:32:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:40,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:32:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:40,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 15:32:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:40,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-18 15:32:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:32:41,046 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-08-18 15:32:41,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345079090] [2020-08-18 15:32:41,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:32:41,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 15:32:41,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470424049] [2020-08-18 15:32:41,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 15:32:41,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:32:41,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 15:32:41,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:32:41,050 INFO L87 Difference]: Start difference. First operand 2378 states and 2771 transitions. Second operand 5 states. [2020-08-18 15:32:42,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:32:42,158 INFO L93 Difference]: Finished difference Result 4462 states and 5234 transitions. [2020-08-18 15:32:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 15:32:42,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 369 [2020-08-18 15:32:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:32:42,160 INFO L225 Difference]: With dead ends: 4462 [2020-08-18 15:32:42,160 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 15:32:42,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:32:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 15:32:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 15:32:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 15:32:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 15:32:42,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 369 [2020-08-18 15:32:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:32:42,169 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 15:32:42,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 15:32:42,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 15:32:42,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 15:32:42,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 15:32:42,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 15:32:42,534 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 104 [2020-08-18 15:32:42,651 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 104 [2020-08-18 15:32:43,322 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 41 [2020-08-18 15:32:43,596 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 36 [2020-08-18 15:32:43,858 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 36 [2020-08-18 15:32:43,862 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:32:43,863 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 15:32:43,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:32:43,863 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-18 15:32:43,863 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,863 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-18 15:32:43,864 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 15:32:43,865 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 15:32:43,865 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 15:32:43,865 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 15:32:43,865 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 15:32:43,865 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 15:32:43,865 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-18 15:32:43,866 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-18 15:32:43,866 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-18 15:32:43,866 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,866 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,866 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,866 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 15:32:43,867 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,868 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 15:32:43,869 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,870 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 15:32:43,871 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,872 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 15:32:43,873 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,874 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-18 15:32:43,875 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-18 15:32:43,876 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-18 15:32:43,877 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-18 15:32:43,878 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,879 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 15:32:43,880 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-18 15:32:43,881 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-18 15:32:43,881 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)|))) (.cse4 (= 3 |old(~a10~0)|)) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0)))) (and (or (= 6 |old(~a19~0)|) .cse0 .cse1 .cse2 .cse3) (or (not .cse4) .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (<= |old(~a1~0)| 23)) .cse1 .cse2 .cse3) (or (not (<= 10 |old(~a19~0)|)) .cse0 .cse4 .cse2 .cse3))) [2020-08-18 15:32:43,881 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-18 15:32:43,881 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-18 15:32:43,881 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-18 15:32:43,881 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,881 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 15:32:43,882 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-18 15:32:43,883 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-18 15:32:43,884 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-18 15:32:43,885 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-18 15:32:43,886 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-18 15:32:43,887 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-18 15:32:43,888 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-18 15:32:43,888 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:32:43,888 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (= ~a12~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-08-18 15:32:43,888 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 15:32:43,888 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:32:43,888 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)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (= ~a12~0 0))) [2020-08-18 15:32:43,888 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-18 15:32:43,889 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= ~a10~0 3))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 23)) (not (<= |old(~a10~0)| 0)) (and .cse1 .cse0) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (not .cse1) (not (= ~a19~0 6))) (not (= 14 ~a4~0)) (not (= ~a12~0 0)))) [2020-08-18 15:32:43,889 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-18 15:32:43,889 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-18 15:32:43,889 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= ~a10~0 3))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= ~a1~0 23)) (not (<= |old(~a10~0)| 0)) (and .cse1 .cse0) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (not .cse1) (not (= ~a19~0 6))) (not (= 14 ~a4~0)) (not (= ~a12~0 0)))) [2020-08-18 15:32:43,889 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-18 15:32:43,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:32:43 BoogieIcfgContainer [2020-08-18 15:32:43,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:32:43,912 INFO L168 Benchmark]: Toolchain (without parser) took 30525.56 ms. Allocated memory was 138.4 MB in the beginning and 612.9 MB in the end (delta: 474.5 MB). Free memory was 100.0 MB in the beginning and 380.4 MB in the end (delta: -280.4 MB). Peak memory consumption was 496.5 MB. Max. memory is 7.1 GB. [2020-08-18 15:32:43,913 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-08-18 15:32:43,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.36 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 169.0 MB in the end (delta: -69.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:32:43,914 INFO L168 Benchmark]: Boogie Preprocessor took 126.51 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 164.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-08-18 15:32:43,915 INFO L168 Benchmark]: RCFGBuilder took 1462.73 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 164.6 MB in the beginning and 180.5 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-08-18 15:32:43,916 INFO L168 Benchmark]: TraceAbstraction took 28052.76 ms. Allocated memory was 233.8 MB in the beginning and 612.9 MB in the end (delta: 379.1 MB). Free memory was 179.0 MB in the beginning and 380.4 MB in the end (delta: -201.4 MB). Peak memory consumption was 480.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:32:43,920 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 876.36 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 169.0 MB in the end (delta: -69.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.51 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 164.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1462.73 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 164.6 MB in the beginning and 180.5 MB in the end (delta: -15.9 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28052.76 ms. Allocated memory was 233.8 MB in the beginning and 612.9 MB in the end (delta: 379.1 MB). Free memory was 179.0 MB in the beginning and 380.4 MB in the end (delta: -201.4 MB). Peak memory consumption was 480.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 160]: 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: (((((((!(23 <= \old(a1)) || (a19 <= 9 && a1 <= 23)) || !(\old(a10) <= 0)) || (a10 == 3 && a19 <= 9)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || (!(a10 == 3) && !(a19 == 6))) || !(14 == a4)) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.2s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 7167 SDslu, 392 SDs, 0 SdLazy, 12092 SolverSat, 2145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2835occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 2124 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 121 PreInvPairs, 169 NumberOfFragments, 292 HoareAnnotationTreeSize, 121 FomulaSimplifications, 16106 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4647 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2079 NumberOfCodeBlocks, 2079 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2069 ConstructedInterpolants, 0 QuantifiedInterpolants, 1501053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 1442/1478 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...