/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:28:14,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:28:14,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:28:14,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:28:14,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:28:14,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:28:14,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:28:14,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:28:14,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:28:14,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:28:14,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:28:14,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:28:14,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:28:14,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:28:14,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:28:14,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:28:14,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:28:14,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:28:14,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:28:14,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:28:14,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:28:14,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:28:14,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:28:14,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:28:14,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:28:14,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:28:14,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:28:14,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:28:14,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:28:14,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:28:14,730 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:28:14,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:28:14,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:28:14,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:28:14,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:28:14,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:28:14,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:28:14,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:28:14,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:28:14,733 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:28:14,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:28:14,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:28:14,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:28:14,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:28:14,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:28:14,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:28:14,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:28:14,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:28:14,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:28:14,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:28:14,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:28:14,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:28:14,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:28:14,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:28:14,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:28:14,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:28:15,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:28:15,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:28:15,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:28:15,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:28:15,067 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:28:15,068 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-07 11:28:15,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ae564c2/12ebe276e7c04360a8872cfa51b77e73/FLAG9d3dae57f [2020-07-07 11:28:15,702 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:28:15,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-07 11:28:15,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ae564c2/12ebe276e7c04360a8872cfa51b77e73/FLAG9d3dae57f [2020-07-07 11:28:15,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ae564c2/12ebe276e7c04360a8872cfa51b77e73 [2020-07-07 11:28:15,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:28:15,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:28:15,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:28:15,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:28:15,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:28:15,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:28:15" (1/1) ... [2020-07-07 11:28:15,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9bcbb82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:15, skipping insertion in model container [2020-07-07 11:28:15,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:28:15" (1/1) ... [2020-07-07 11:28:15,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:28:16,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:28:16,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:28:16,501 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:28:16,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:28:16,815 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:28:16,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16 WrapperNode [2020-07-07 11:28:16,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:28:16,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:28:16,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:28:16,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:28:16,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... [2020-07-07 11:28:16,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:28:16,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:28:16,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:28:16,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:28:16,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-07 11:28:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:28:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:28:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:28:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:28:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:28:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:28:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:28:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:28:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:28:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:28:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:28:18,355 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:28:18,355 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:28:18,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:28:18 BoogieIcfgContainer [2020-07-07 11:28:18,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:28:18,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:28:18,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:28:18,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:28:18,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:28:15" (1/3) ... [2020-07-07 11:28:18,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fe9d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:28:18, skipping insertion in model container [2020-07-07 11:28:18,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:16" (2/3) ... [2020-07-07 11:28:18,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fe9d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:28:18, skipping insertion in model container [2020-07-07 11:28:18,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:28:18" (3/3) ... [2020-07-07 11:28:18,383 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-07 11:28:18,397 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:28:18,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:28:18,429 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:28:18,466 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:28:18,467 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:28:18,468 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:28:18,468 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:28:18,469 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:28:18,469 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:28:18,469 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:28:18,470 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:28:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-07 11:28:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-07 11:28:18,522 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:18,523 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] [2020-07-07 11:28:18,524 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:18,531 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-07 11:28:18,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:18,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000219641] [2020-07-07 11:28:18,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:19,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000219641] [2020-07-07 11:28:19,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:28:19,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:28:19,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516898370] [2020-07-07 11:28:19,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:28:19,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:19,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:28:19,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:28:19,047 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-07 11:28:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:21,143 INFO L93 Difference]: Finished difference Result 745 states and 1317 transitions. [2020-07-07 11:28:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:28:21,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-07-07 11:28:21,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:21,164 INFO L225 Difference]: With dead ends: 745 [2020-07-07 11:28:21,165 INFO L226 Difference]: Without dead ends: 447 [2020-07-07 11:28:21,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-07 11:28:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 296. [2020-07-07 11:28:21,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-07-07 11:28:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-07-07 11:28:21,251 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 56 [2020-07-07 11:28:21,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:21,252 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-07-07 11:28:21,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:28:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-07-07 11:28:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-07 11:28:21,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:21,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:21,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:28:21,259 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:21,260 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-07 11:28:21,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:21,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981879055] [2020-07-07 11:28:21,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:21,586 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:21,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981879055] [2020-07-07 11:28:21,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880986309] [2020-07-07 11:28:21,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:21,721 INFO L264 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:21,736 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:21,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:28:21,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:28:21,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356552557] [2020-07-07 11:28:21,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:28:21,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:21,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:28:21,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:21,835 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 3 states. [2020-07-07 11:28:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:22,490 INFO L93 Difference]: Finished difference Result 874 states and 1343 transitions. [2020-07-07 11:28:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:28:22,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-07 11:28:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:22,496 INFO L225 Difference]: With dead ends: 874 [2020-07-07 11:28:22,497 INFO L226 Difference]: Without dead ends: 584 [2020-07-07 11:28:22,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:22,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-07 11:28:22,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-07 11:28:22,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-07 11:28:22,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 856 transitions. [2020-07-07 11:28:22,537 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 856 transitions. Word has length 126 [2020-07-07 11:28:22,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:22,538 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 856 transitions. [2020-07-07 11:28:22,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:28:22,539 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 856 transitions. [2020-07-07 11:28:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 11:28:22,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:22,544 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:22,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-07 11:28:22,759 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:22,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:22,759 INFO L82 PathProgramCache]: Analyzing trace with hash -2030180707, now seen corresponding path program 1 times [2020-07-07 11:28:22,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:22,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872046266] [2020-07-07 11:28:22,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:23,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872046266] [2020-07-07 11:28:23,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:28:23,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:28:23,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970993501] [2020-07-07 11:28:23,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:28:23,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:23,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:28:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:23,104 INFO L87 Difference]: Start difference. First operand 584 states and 856 transitions. Second operand 7 states. [2020-07-07 11:28:24,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:24,505 INFO L93 Difference]: Finished difference Result 1325 states and 1952 transitions. [2020-07-07 11:28:24,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:28:24,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-07-07 11:28:24,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:24,518 INFO L225 Difference]: With dead ends: 1325 [2020-07-07 11:28:24,518 INFO L226 Difference]: Without dead ends: 747 [2020-07-07 11:28:24,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:28:24,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-07-07 11:28:24,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 739. [2020-07-07 11:28:24,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-07 11:28:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1050 transitions. [2020-07-07 11:28:24,552 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1050 transitions. Word has length 143 [2020-07-07 11:28:24,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:24,553 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1050 transitions. [2020-07-07 11:28:24,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:28:24,553 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1050 transitions. [2020-07-07 11:28:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-07 11:28:24,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:24,562 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:24,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:28:24,562 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:24,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:24,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1979141926, now seen corresponding path program 1 times [2020-07-07 11:28:24,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:24,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036085448] [2020-07-07 11:28:24,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-07 11:28:24,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036085448] [2020-07-07 11:28:24,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500715963] [2020-07-07 11:28:24,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:24,969 INFO L264 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:24,977 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-07 11:28:25,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:28:25,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-07-07 11:28:25,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138320152] [2020-07-07 11:28:25,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:28:25,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:25,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:28:25,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:28:25,050 INFO L87 Difference]: Start difference. First operand 739 states and 1050 transitions. Second operand 3 states. [2020-07-07 11:28:25,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:25,780 INFO L93 Difference]: Finished difference Result 1621 states and 2405 transitions. [2020-07-07 11:28:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:28:25,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-07-07 11:28:25,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:25,791 INFO L225 Difference]: With dead ends: 1621 [2020-07-07 11:28:25,791 INFO L226 Difference]: Without dead ends: 1031 [2020-07-07 11:28:25,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:28:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-07-07 11:28:25,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 888. [2020-07-07 11:28:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-07-07 11:28:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1229 transitions. [2020-07-07 11:28:25,833 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1229 transitions. Word has length 213 [2020-07-07 11:28:25,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:25,834 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1229 transitions. [2020-07-07 11:28:25,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:28:25,834 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1229 transitions. [2020-07-07 11:28:25,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-07 11:28:25,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:25,840 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:26,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:26,055 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:26,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:26,056 INFO L82 PathProgramCache]: Analyzing trace with hash -870338610, now seen corresponding path program 1 times [2020-07-07 11:28:26,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:26,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055901835] [2020-07-07 11:28:26,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 90 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-07 11:28:26,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055901835] [2020-07-07 11:28:26,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121985921] [2020-07-07 11:28:26,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:26,633 INFO L264 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:26,639 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-07 11:28:26,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:28:26,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:28:26,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37267153] [2020-07-07 11:28:26,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:28:26,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:26,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:28:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:26,730 INFO L87 Difference]: Start difference. First operand 888 states and 1229 transitions. Second operand 3 states. [2020-07-07 11:28:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:27,383 INFO L93 Difference]: Finished difference Result 1472 states and 2093 transitions. [2020-07-07 11:28:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:28:27,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-07-07 11:28:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:27,385 INFO L225 Difference]: With dead ends: 1472 [2020-07-07 11:28:27,385 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:28:27,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:28:27,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:28:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:28:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:28:27,390 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2020-07-07 11:28:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:27,390 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:28:27,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:28:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:28:27,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:28:27,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:27,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:28:28,008 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 31 [2020-07-07 11:28:28,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:28:28,108 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-07 11:28:28,108 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:28:28,109 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-07 11:28:28,109 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,109 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,109 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,109 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,109 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,110 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,110 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-07 11:28:28,110 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-07 11:28:28,110 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-07 11:28:28,110 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-07 11:28:28,110 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-07 11:28:28,111 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-07 11:28:28,112 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-07 11:28:28,113 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,114 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-07 11:28:28,115 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-07 11:28:28,116 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-07 11:28:28,116 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-07 11:28:28,116 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-07 11:28:28,116 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-07 11:28:28,116 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-07 11:28:28,116 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-07 11:28:28,117 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-07 11:28:28,118 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,119 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-07 11:28:28,120 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,121 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-07 11:28:28,122 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,123 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-07 11:28:28,124 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-07 11:28:28,125 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,126 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-07 11:28:28,127 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-07 11:28:28,128 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (< 0 (+ |old(~a1~0)| 13)))) (or (not (<= 4 |old(~a10~0)|)) .cse0) (or .cse0 (not (<= |old(~a10~0)| 2))))) [2020-07-07 11:28:28,128 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-07 11:28:28,128 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-07 11:28:28,128 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-07 11:28:28,128 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,128 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-07 11:28:28,129 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-07 11:28:28,130 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-07 11:28:28,131 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-07 11:28:28,132 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-07 11:28:28,133 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-07 11:28:28,134 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-07 11:28:28,135 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-07 11:28:28,135 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:28:28,135 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 9 ~a19~0) (<= ~a1~0 23) (<= ~a10~0 2) (<= 23 ~a1~0)) [2020-07-07 11:28:28,135 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:28:28,135 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:28:28,135 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= 9 |old(~a19~0)|)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) (not (<= |old(~a10~0)| 2))) [2020-07-07 11:28:28,135 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-07 11:28:28,136 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (<= 9 ~a19~0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (<= 4 ~a10~0) (not (<= |old(~a10~0)| 2)) (< 0 (+ ~a1~0 13))) [2020-07-07 11:28:28,136 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-07 11:28:28,136 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-07 11:28:28,136 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (<= 9 ~a19~0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (<= 4 ~a10~0) (not (<= |old(~a10~0)| 2)) (< 0 (+ ~a1~0 13))) [2020-07-07 11:28:28,136 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-07 11:28:28,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:28:28 BoogieIcfgContainer [2020-07-07 11:28:28,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:28:28,163 INFO L168 Benchmark]: Toolchain (without parser) took 12185.10 ms. Allocated memory was 137.4 MB in the beginning and 384.8 MB in the end (delta: 247.5 MB). Free memory was 100.9 MB in the beginning and 304.9 MB in the end (delta: -204.0 MB). Peak memory consumption was 264.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:28,164 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 137.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 11:28:28,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.34 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 100.5 MB in the beginning and 169.5 MB in the end (delta: -69.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:28,166 INFO L168 Benchmark]: Boogie Preprocessor took 149.41 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 165.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:28,167 INFO L168 Benchmark]: RCFGBuilder took 1401.70 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.4 MB in the beginning and 181.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:28,171 INFO L168 Benchmark]: TraceAbstraction took 9785.00 ms. Allocated memory was 234.9 MB in the beginning and 384.8 MB in the end (delta: 149.9 MB). Free memory was 181.0 MB in the beginning and 304.9 MB in the end (delta: -124.0 MB). Peak memory consumption was 247.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:28,175 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 137.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 840.34 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 100.5 MB in the beginning and 169.5 MB in the end (delta: -69.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.41 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 165.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1401.70 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.4 MB in the beginning and 181.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9785.00 ms. Allocated memory was 234.9 MB in the beginning and 384.8 MB in the end (delta: 149.9 MB). Free memory was 181.0 MB in the beginning and 304.9 MB in the end (delta: -124.0 MB). Peak memory consumption was 247.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((9 <= a19 || !(23 <= \old(a1))) || !(\old(a1) <= 23)) || !(9 <= \old(a19))) || a10 <= 2) || 4 <= a10) || !(\old(a10) <= 2)) || 0 < a1 + 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 315 SDtfs, 1637 SDslu, 83 SDs, 0 SdLazy, 2635 SolverSat, 628 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 629 GetRequests, 600 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=888occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 302 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 27 PreInvPairs, 47 NumberOfFragments, 197 HoareAnnotationTreeSize, 27 FomulaSimplifications, 1180 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 625 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1347 NumberOfCodeBlocks, 1347 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1339 ConstructedInterpolants, 0 QuantifiedInterpolants, 498980 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1052 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 808/819 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...