/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:26:30,679 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-19 04:26:30,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:26:30,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:26:30,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:26:30,736 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 [2020-08-19 04:26:30,776 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:26:30,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:26:30,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:26:30,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:26:30,778 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:26:30,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:26:30,778 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:26:30,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:26:30,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:26:30,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:26:30,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:26:30,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:26:30,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:26:30,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:26:30,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:26:30,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:26:30,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:26:30,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:26:30,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:26:30,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:26:30,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:26:30,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:26:30,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:26:30,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:26:30,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:26:30,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:26:30,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:26:30,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:26:30,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:26:30,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:26:31,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:26:31,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:26:31,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:26:31,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:26:31,119 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:26:31,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-08-19 04:26:31,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc88148f9/7a76ee7918504268bef6b091556cb950/FLAG0b43dcada [2020-08-19 04:26:31,751 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:26:31,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-08-19 04:26:31,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc88148f9/7a76ee7918504268bef6b091556cb950/FLAG0b43dcada [2020-08-19 04:26:32,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc88148f9/7a76ee7918504268bef6b091556cb950 [2020-08-19 04:26:32,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:26:32,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:26:32,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:26:32,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:26:32,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:26:32,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7105da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32, skipping insertion in model container [2020-08-19 04:26:32,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:26:32,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:26:32,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:26:32,551 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:26:32,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:26:32,789 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:26:32,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32 WrapperNode [2020-08-19 04:26:32,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:26:32,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:26:32,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:26:32,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:26:32,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (1/1) ... [2020-08-19 04:26:32,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:26:32,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:26:32,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:26:32,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:26:32,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (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 [2020-08-19 04:26:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:26:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:26:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-19 04:26:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:26:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-19 04:26:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:26:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:26:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 04:26:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:26:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:26:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:26:34,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:26:34,057 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 04:26:34,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:26:34 BoogieIcfgContainer [2020-08-19 04:26:34,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:26:34,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:26:34,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:26:34,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:26:34,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:26:32" (1/3) ... [2020-08-19 04:26:34,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c028cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:26:34, skipping insertion in model container [2020-08-19 04:26:34,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:26:32" (2/3) ... [2020-08-19 04:26:34,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c028cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:26:34, skipping insertion in model container [2020-08-19 04:26:34,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:26:34" (3/3) ... [2020-08-19 04:26:34,071 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-08-19 04:26:34,082 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:26:34,090 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:26:34,106 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:26:34,133 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:26:34,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:26:34,133 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:26:34,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:26:34,134 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:26:34,134 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:26:34,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:26:34,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:26:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-19 04:26:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-08-19 04:26:34,171 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:26:34,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:26:34,172 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:26:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:26:34,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-08-19 04:26:34,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:26:34,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252658268] [2020-08-19 04:26:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:26:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:34,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:26:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:26:34,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252658268] [2020-08-19 04:26:34,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:26:34,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 04:26:34,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068958975] [2020-08-19 04:26:34,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:26:34,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:26:34,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:26:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:26:34,773 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-19 04:26:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:26:36,941 INFO L93 Difference]: Finished difference Result 784 states and 1378 transitions. [2020-08-19 04:26:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:26:36,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-08-19 04:26:36,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:26:36,962 INFO L225 Difference]: With dead ends: 784 [2020-08-19 04:26:36,963 INFO L226 Difference]: Without dead ends: 480 [2020-08-19 04:26:36,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:26:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-08-19 04:26:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 473. [2020-08-19 04:26:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-08-19 04:26:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 645 transitions. [2020-08-19 04:26:37,083 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 645 transitions. Word has length 96 [2020-08-19 04:26:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:26:37,085 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 645 transitions. [2020-08-19 04:26:37,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:26:37,085 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 645 transitions. [2020-08-19 04:26:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-19 04:26:37,106 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:26:37,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:26:37,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:26:37,107 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:26:37,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:26:37,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-08-19 04:26:37,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:26:37,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365148495] [2020-08-19 04:26:37,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:26:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:26:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 04:26:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:26:37,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365148495] [2020-08-19 04:26:37,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:26:37,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-19 04:26:37,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321615014] [2020-08-19 04:26:37,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:26:37,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:26:37,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:26:37,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:26:37,320 INFO L87 Difference]: Start difference. First operand 473 states and 645 transitions. Second operand 5 states. [2020-08-19 04:26:38,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:26:38,572 INFO L93 Difference]: Finished difference Result 1384 states and 1929 transitions. [2020-08-19 04:26:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 04:26:38,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-08-19 04:26:38,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:26:38,580 INFO L225 Difference]: With dead ends: 1384 [2020-08-19 04:26:38,580 INFO L226 Difference]: Without dead ends: 917 [2020-08-19 04:26:38,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:26:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-08-19 04:26:38,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 913. [2020-08-19 04:26:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-08-19 04:26:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1164 transitions. [2020-08-19 04:26:38,661 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1164 transitions. Word has length 117 [2020-08-19 04:26:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:26:38,662 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1164 transitions. [2020-08-19 04:26:38,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:26:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1164 transitions. [2020-08-19 04:26:38,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-19 04:26:38,674 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:26:38,675 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:26:38,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:26:38,676 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:26:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:26:38,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1834326700, now seen corresponding path program 1 times [2020-08-19 04:26:38,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:26:38,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847921716] [2020-08-19 04:26:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:26:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:38,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:26:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:38,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 04:26:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:38,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-19 04:26:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 04:26:38,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847921716] [2020-08-19 04:26:38,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:26:38,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-19 04:26:38,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907796922] [2020-08-19 04:26:38,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:26:38,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:26:38,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:26:38,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:26:38,857 INFO L87 Difference]: Start difference. First operand 913 states and 1164 transitions. Second operand 7 states. [2020-08-19 04:26:40,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:26:40,153 INFO L93 Difference]: Finished difference Result 1850 states and 2407 transitions. [2020-08-19 04:26:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 04:26:40,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-08-19 04:26:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:26:40,160 INFO L225 Difference]: With dead ends: 1850 [2020-08-19 04:26:40,161 INFO L226 Difference]: Without dead ends: 943 [2020-08-19 04:26:40,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 04:26:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2020-08-19 04:26:40,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 925. [2020-08-19 04:26:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-08-19 04:26:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1108 transitions. [2020-08-19 04:26:40,206 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1108 transitions. Word has length 125 [2020-08-19 04:26:40,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:26:40,207 INFO L479 AbstractCegarLoop]: Abstraction has 925 states and 1108 transitions. [2020-08-19 04:26:40,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:26:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1108 transitions. [2020-08-19 04:26:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-19 04:26:40,212 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:26:40,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:26:40,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:26:40,212 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:26:40,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:26:40,213 INFO L82 PathProgramCache]: Analyzing trace with hash -429451800, now seen corresponding path program 1 times [2020-08-19 04:26:40,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:26:40,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391885088] [2020-08-19 04:26:40,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:26:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:26:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 04:26:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:26:40,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391885088] [2020-08-19 04:26:40,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:26:40,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 04:26:40,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61799579] [2020-08-19 04:26:40,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 04:26:40,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:26:40,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 04:26:40,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:26:40,422 INFO L87 Difference]: Start difference. First operand 925 states and 1108 transitions. Second operand 8 states. [2020-08-19 04:26:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:26:42,529 INFO L93 Difference]: Finished difference Result 3525 states and 4383 transitions. [2020-08-19 04:26:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 04:26:42,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-08-19 04:26:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:26:42,545 INFO L225 Difference]: With dead ends: 3525 [2020-08-19 04:26:42,546 INFO L226 Difference]: Without dead ends: 2606 [2020-08-19 04:26:42,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-19 04:26:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2020-08-19 04:26:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2286. [2020-08-19 04:26:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2286 states. [2020-08-19 04:26:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 2736 transitions. [2020-08-19 04:26:42,647 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 2736 transitions. Word has length 133 [2020-08-19 04:26:42,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:26:42,648 INFO L479 AbstractCegarLoop]: Abstraction has 2286 states and 2736 transitions. [2020-08-19 04:26:42,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 04:26:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 2736 transitions. [2020-08-19 04:26:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-19 04:26:42,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:26:42,656 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:26:42,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:26:42,656 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:26:42,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:26:42,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1263577656, now seen corresponding path program 1 times [2020-08-19 04:26:42,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:26:42,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126150554] [2020-08-19 04:26:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:26:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:42,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:26:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:42,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 04:26:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:42,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-19 04:26:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:42,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-19 04:26:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:26:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 61 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-19 04:26:42,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126150554] [2020-08-19 04:26:42,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:26:42,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 04:26:42,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607561224] [2020-08-19 04:26:42,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:26:42,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:26:42,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:26:42,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:26:42,906 INFO L87 Difference]: Start difference. First operand 2286 states and 2736 transitions. Second operand 9 states. [2020-08-19 04:26:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:26:44,937 INFO L93 Difference]: Finished difference Result 6196 states and 7560 transitions. [2020-08-19 04:26:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:26:44,938 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-08-19 04:26:44,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:26:44,939 INFO L225 Difference]: With dead ends: 6196 [2020-08-19 04:26:44,939 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 04:26:44,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-19 04:26:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 04:26:44,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 04:26:44,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 04:26:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 04:26:44,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 160 [2020-08-19 04:26:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:26:44,952 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 04:26:44,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:26:44,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 04:26:44,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 04:26:44,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:26:44,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 04:26:45,560 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 25 [2020-08-19 04:26:45,688 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 04:26:45,689 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-19 04:26:45,689 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 04:26:45,689 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,689 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,689 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,689 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-19 04:26:45,690 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-19 04:26:45,691 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-19 04:26:45,691 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-19 04:26:45,691 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-19 04:26:45,691 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-19 04:26:45,691 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-19 04:26:45,691 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,692 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-19 04:26:45,693 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-19 04:26:45,693 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-19 04:26:45,693 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-19 04:26:45,693 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-19 04:26:45,693 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-19 04:26:45,693 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-19 04:26:45,694 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,695 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-19 04:26:45,696 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,697 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-19 04:26:45,698 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,699 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-19 04:26:45,700 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-19 04:26:45,701 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,702 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,703 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-19 04:26:45,704 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-19 04:26:45,705 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,706 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-19 04:26:45,707 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,708 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-19 04:26:45,709 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-19 04:26:45,710 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-19 04:26:45,711 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-19 04:26:45,711 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,711 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,711 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,711 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a17~0)| 8))) (.cse1 (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)))) (and (or (= 8 |old(~a28~0)|) .cse0 .cse1) (or .cse0 .cse1 (= |old(~a11~0)| 1)))) [2020-08-19 04:26:45,711 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-19 04:26:45,712 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-19 04:26:45,713 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-19 04:26:45,714 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-19 04:26:45,715 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-19 04:26:45,716 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-19 04:26:45,717 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-19 04:26:45,718 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-19 04:26:45,719 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-19 04:26:45,720 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 04:26:45,720 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (<= ~a28~0 7) (<= ~a17~0 8) (not (= ~a25~0 1))) [2020-08-19 04:26:45,720 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 04:26:45,720 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 04:26:45,720 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (= |old(~a25~0)| 1) (not (<= |old(~a11~0)| 0))) [2020-08-19 04:26:45,720 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and (not (= ~a11~0 1)) .cse0) (= |old(~a25~0)| 1) (and (not (= ~a28~0 8)) .cse0) (not (<= |old(~a11~0)| 0)))) [2020-08-19 04:26:45,721 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-19 04:26:45,721 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-19 04:26:45,721 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and (not (= ~a11~0 1)) .cse0) (= |old(~a25~0)| 1) (and (not (= ~a28~0 8)) .cse0) (not (<= |old(~a11~0)| 0)))) [2020-08-19 04:26:45,721 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-19 04:26:45,721 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-19 04:26:45,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:26:45 BoogieIcfgContainer [2020-08-19 04:26:45,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:26:45,742 INFO L168 Benchmark]: Toolchain (without parser) took 13722.40 ms. Allocated memory was 141.6 MB in the beginning and 381.7 MB in the end (delta: 240.1 MB). Free memory was 103.6 MB in the beginning and 152.0 MB in the end (delta: -48.4 MB). Peak memory consumption was 191.7 MB. Max. memory is 7.1 GB. [2020-08-19 04:26:45,743 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 04:26:45,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.43 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.4 MB in the beginning and 172.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-08-19 04:26:45,744 INFO L168 Benchmark]: Boogie Preprocessor took 102.23 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-19 04:26:45,746 INFO L168 Benchmark]: RCFGBuilder took 1170.42 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 167.3 MB in the beginning and 175.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-08-19 04:26:45,747 INFO L168 Benchmark]: TraceAbstraction took 11675.23 ms. Allocated memory was 235.4 MB in the beginning and 381.7 MB in the end (delta: 146.3 MB). Free memory was 175.4 MB in the beginning and 152.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 169.7 MB. Max. memory is 7.1 GB. [2020-08-19 04:26:45,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.43 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.4 MB in the beginning and 172.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.23 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1170.42 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 167.3 MB in the beginning and 175.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11675.23 ms. Allocated memory was 235.4 MB in the beginning and 381.7 MB in the end (delta: 146.3 MB). Free memory was 175.4 MB in the beginning and 152.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 169.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || !(\old(a19) == 1)) || (!(a11 == 1) && a17 <= 8)) || \old(a25) == 1) || (!(a28 == 8) && a17 <= 8)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.8s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 201 SDtfs, 3756 SDslu, 297 SDs, 0 SdLazy, 4901 SolverSat, 1155 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2286occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 349 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 63 PreInvPairs, 115 NumberOfFragments, 227 HoareAnnotationTreeSize, 63 FomulaSimplifications, 12565 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2290 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 631 NumberOfCodeBlocks, 631 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 626 ConstructedInterpolants, 0 QuantifiedInterpolants, 215172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 147/160 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...