/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/Problem02_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:25:23,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:25:23,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:25:23,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:25:23,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:25:23,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:25:23,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:25:23,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:25:23,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:25:23,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:25:23,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:25:23,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:25:23,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:25:23,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:25:23,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:25:23,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:25:23,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:25:23,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:25:23,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:25:23,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:25:23,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:25:23,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:25:23,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:25:23,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:25:23,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:25:23,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:25:23,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:25:23,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:25:23,064 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 11:25:23,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:25:23,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:25:23,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:25:23,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:25:23,081 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:25:23,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:25:23,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:25:23,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:25:23,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:25:23,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:25:23,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:25:23,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:25:23,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:25:23,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:25:23,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:25:23,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:25:23,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:25:23,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:25:23,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:25:23,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:25:23,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:25:23,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:25:23,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:25:23,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:25:23,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:25:23,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:25:23,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:25:23,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:25:23,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:25:23,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:25:23,369 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:25:23,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:25:23,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:25:23,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:25:23,386 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:25:23,387 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label27.c [2020-07-07 11:25:23,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4a5588a9/f4e88390ee594a9ba6c08f1af5949bde/FLAG23e0ae320 [2020-07-07 11:25:23,991 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:25:23,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label27.c [2020-07-07 11:25:24,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4a5588a9/f4e88390ee594a9ba6c08f1af5949bde/FLAG23e0ae320 [2020-07-07 11:25:24,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4a5588a9/f4e88390ee594a9ba6c08f1af5949bde [2020-07-07 11:25:24,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:25:24,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:25:24,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:25:24,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:25:24,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:25:24,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:25:24" (1/1) ... [2020-07-07 11:25:24,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2895088e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:24, skipping insertion in model container [2020-07-07 11:25:24,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:25:24" (1/1) ... [2020-07-07 11:25:24,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:25:24,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:25:24,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:25:24,914 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:25:25,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:25:25,021 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:25:25,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25 WrapperNode [2020-07-07 11:25:25,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:25:25,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:25:25,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:25:25,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:25:25,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (1/1) ... [2020-07-07 11:25:25,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:25:25,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:25:25,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:25:25,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:25:25,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (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 11:25:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:25:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:25:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:25:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:25:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:25:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:25:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:25:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:25:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:25:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:25:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:25:26,224 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:25:26,225 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:25:26,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:25:26 BoogieIcfgContainer [2020-07-07 11:25:26,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:25:26,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:25:26,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:25:26,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:25:26,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:25:24" (1/3) ... [2020-07-07 11:25:26,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9311da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:25:26, skipping insertion in model container [2020-07-07 11:25:26,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:25" (2/3) ... [2020-07-07 11:25:26,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9311da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:25:26, skipping insertion in model container [2020-07-07 11:25:26,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:25:26" (3/3) ... [2020-07-07 11:25:26,238 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label27.c [2020-07-07 11:25:26,248 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:25:26,256 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:25:26,269 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:25:26,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:25:26,293 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:25:26,293 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:25:26,293 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:25:26,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:25:26,294 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:25:26,294 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:25:26,294 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:25:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-07 11:25:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-07 11:25:26,332 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:26,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:26,333 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:26,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1156369505, now seen corresponding path program 1 times [2020-07-07 11:25:26,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:26,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201933608] [2020-07-07 11:25:26,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,828 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 11:25:26,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201933608] [2020-07-07 11:25:26,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:25:26,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:25:26,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000005737] [2020-07-07 11:25:26,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:25:26,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:26,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:25:26,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:25:26,853 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-07-07 11:25:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:28,386 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-07-07 11:25:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:25:28,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-07-07 11:25:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:28,412 INFO L225 Difference]: With dead ends: 627 [2020-07-07 11:25:28,412 INFO L226 Difference]: Without dead ends: 327 [2020-07-07 11:25:28,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:25:28,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-07-07 11:25:28,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-07-07 11:25:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-07 11:25:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-07-07 11:25:28,490 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 101 [2020-07-07 11:25:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:28,491 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-07-07 11:25:28,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:25:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-07-07 11:25:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-07 11:25:28,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:28,498 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:28,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:25:28,499 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:28,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:28,499 INFO L82 PathProgramCache]: Analyzing trace with hash -78726948, now seen corresponding path program 1 times [2020-07-07 11:25:28,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:28,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132376191] [2020-07-07 11:25:28,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:28,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132376191] [2020-07-07 11:25:28,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:25:28,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:25:28,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596828958] [2020-07-07 11:25:28,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:25:28,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:28,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:25:28,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:25:28,762 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 9 states. [2020-07-07 11:25:30,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:30,871 INFO L93 Difference]: Finished difference Result 1102 states and 1690 transitions. [2020-07-07 11:25:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:25:30,872 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 116 [2020-07-07 11:25:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:30,879 INFO L225 Difference]: With dead ends: 1102 [2020-07-07 11:25:30,879 INFO L226 Difference]: Without dead ends: 789 [2020-07-07 11:25:30,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:25:30,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-07-07 11:25:30,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 772. [2020-07-07 11:25:30,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-07-07 11:25:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1127 transitions. [2020-07-07 11:25:30,938 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1127 transitions. Word has length 116 [2020-07-07 11:25:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:30,939 INFO L479 AbstractCegarLoop]: Abstraction has 772 states and 1127 transitions. [2020-07-07 11:25:30,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:25:30,939 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1127 transitions. [2020-07-07 11:25:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-07 11:25:30,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:30,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-07-07 11:25:30,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:25:30,946 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:30,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:30,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1261606519, now seen corresponding path program 1 times [2020-07-07 11:25:30,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:30,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87384103] [2020-07-07 11:25:30,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 11:25:31,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87384103] [2020-07-07 11:25:31,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282520058] [2020-07-07 11:25:31,228 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 11:25:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:31,324 INFO L264 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:31,334 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:31,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:25:31,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-07 11:25:31,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20247572] [2020-07-07 11:25:31,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:25:31,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:25:31,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:25:31,444 INFO L87 Difference]: Start difference. First operand 772 states and 1127 transitions. Second operand 12 states. [2020-07-07 11:25:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:32,996 INFO L93 Difference]: Finished difference Result 1395 states and 2061 transitions. [2020-07-07 11:25:32,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:25:32,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 124 [2020-07-07 11:25:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:33,001 INFO L225 Difference]: With dead ends: 1395 [2020-07-07 11:25:33,001 INFO L226 Difference]: Without dead ends: 629 [2020-07-07 11:25:33,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:25:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-07-07 11:25:33,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 611. [2020-07-07 11:25:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-07 11:25:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 865 transitions. [2020-07-07 11:25:33,032 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 865 transitions. Word has length 124 [2020-07-07 11:25:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:33,032 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 865 transitions. [2020-07-07 11:25:33,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:25:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 865 transitions. [2020-07-07 11:25:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-07 11:25:33,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:33,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:33,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:25:33,251 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:33,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:33,252 INFO L82 PathProgramCache]: Analyzing trace with hash -187133879, now seen corresponding path program 1 times [2020-07-07 11:25:33,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:33,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844367770] [2020-07-07 11:25:33,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:33,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844367770] [2020-07-07 11:25:33,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:25:33,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:25:33,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876394592] [2020-07-07 11:25:33,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:25:33,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:33,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:25:33,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:25:33,435 INFO L87 Difference]: Start difference. First operand 611 states and 865 transitions. Second operand 9 states. [2020-07-07 11:25:35,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:35,076 INFO L93 Difference]: Finished difference Result 2304 states and 3399 transitions. [2020-07-07 11:25:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:25:35,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 123 [2020-07-07 11:25:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:35,094 INFO L225 Difference]: With dead ends: 2304 [2020-07-07 11:25:35,094 INFO L226 Difference]: Without dead ends: 1699 [2020-07-07 11:25:35,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:25:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2020-07-07 11:25:35,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1219. [2020-07-07 11:25:35,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1219 states. [2020-07-07 11:25:35,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1679 transitions. [2020-07-07 11:25:35,172 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1679 transitions. Word has length 123 [2020-07-07 11:25:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:35,173 INFO L479 AbstractCegarLoop]: Abstraction has 1219 states and 1679 transitions. [2020-07-07 11:25:35,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:25:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1679 transitions. [2020-07-07 11:25:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-07 11:25:35,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:35,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:35,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:25:35,180 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:35,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1130413871, now seen corresponding path program 1 times [2020-07-07 11:25:35,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:35,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064243992] [2020-07-07 11:25:35,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:35,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064243992] [2020-07-07 11:25:35,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555301174] [2020-07-07 11:25:35,607 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 11:25:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:35,729 INFO L264 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:35,734 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:35,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:25:35,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:25:35,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505163433] [2020-07-07 11:25:35,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:25:35,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:35,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:25:35,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:25:35,783 INFO L87 Difference]: Start difference. First operand 1219 states and 1679 transitions. Second operand 3 states. [2020-07-07 11:25:36,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:36,501 INFO L93 Difference]: Finished difference Result 3450 states and 4874 transitions. [2020-07-07 11:25:36,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:25:36,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-07 11:25:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:36,518 INFO L225 Difference]: With dead ends: 3450 [2020-07-07 11:25:36,518 INFO L226 Difference]: Without dead ends: 2237 [2020-07-07 11:25:36,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:25:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2020-07-07 11:25:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1949. [2020-07-07 11:25:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2020-07-07 11:25:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2483 transitions. [2020-07-07 11:25:36,615 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2483 transitions. Word has length 127 [2020-07-07 11:25:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:36,616 INFO L479 AbstractCegarLoop]: Abstraction has 1949 states and 2483 transitions. [2020-07-07 11:25:36,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:25:36,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2483 transitions. [2020-07-07 11:25:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-07 11:25:36,624 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:36,625 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:36,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:36,841 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:36,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2033205960, now seen corresponding path program 1 times [2020-07-07 11:25:36,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:36,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297364302] [2020-07-07 11:25:36,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:25:37,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297364302] [2020-07-07 11:25:37,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426302988] [2020-07-07 11:25:37,057 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 11:25:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:37,193 INFO L264 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:37,208 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:37,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:25:37,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-07 11:25:37,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583450397] [2020-07-07 11:25:37,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:25:37,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:37,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:25:37,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:25:37,275 INFO L87 Difference]: Start difference. First operand 1949 states and 2483 transitions. Second operand 11 states. [2020-07-07 11:25:40,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:40,495 INFO L93 Difference]: Finished difference Result 7046 states and 10011 transitions. [2020-07-07 11:25:40,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-07 11:25:40,496 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2020-07-07 11:25:40,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:40,525 INFO L225 Difference]: With dead ends: 7046 [2020-07-07 11:25:40,526 INFO L226 Difference]: Without dead ends: 5103 [2020-07-07 11:25:40,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-07-07 11:25:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2020-07-07 11:25:40,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 4635. [2020-07-07 11:25:40,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4635 states. [2020-07-07 11:25:40,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6138 transitions. [2020-07-07 11:25:40,723 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6138 transitions. Word has length 140 [2020-07-07 11:25:40,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:40,724 INFO L479 AbstractCegarLoop]: Abstraction has 4635 states and 6138 transitions. [2020-07-07 11:25:40,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:25:40,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6138 transitions. [2020-07-07 11:25:40,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 11:25:40,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:40,744 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-07 11:25:40,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:40,959 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:40,960 INFO L82 PathProgramCache]: Analyzing trace with hash 832046000, now seen corresponding path program 1 times [2020-07-07 11:25:40,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:40,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949996822] [2020-07-07 11:25:40,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 75 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-07 11:25:41,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949996822] [2020-07-07 11:25:41,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48179374] [2020-07-07 11:25:41,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:41,240 INFO L264 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:41,246 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-07 11:25:41,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:25:41,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-07 11:25:41,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815370501] [2020-07-07 11:25:41,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:25:41,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:41,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:25:41,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:25:41,303 INFO L87 Difference]: Start difference. First operand 4635 states and 6138 transitions. Second operand 11 states. [2020-07-07 11:25:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:43,374 INFO L93 Difference]: Finished difference Result 8779 states and 11787 transitions. [2020-07-07 11:25:43,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 11:25:43,374 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-07-07 11:25:43,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:43,403 INFO L225 Difference]: With dead ends: 8779 [2020-07-07 11:25:43,403 INFO L226 Difference]: Without dead ends: 5592 [2020-07-07 11:25:43,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-07-07 11:25:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2020-07-07 11:25:43,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 5531. [2020-07-07 11:25:43,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5531 states. [2020-07-07 11:25:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 7093 transitions. [2020-07-07 11:25:43,564 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 7093 transitions. Word has length 172 [2020-07-07 11:25:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:43,565 INFO L479 AbstractCegarLoop]: Abstraction has 5531 states and 7093 transitions. [2020-07-07 11:25:43,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:25:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 7093 transitions. [2020-07-07 11:25:43,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-07 11:25:43,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:43,585 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-07 11:25:43,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:43,799 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:43,800 INFO L82 PathProgramCache]: Analyzing trace with hash -706269902, now seen corresponding path program 1 times [2020-07-07 11:25:43,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:43,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575158546] [2020-07-07 11:25:43,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 78 proven. 23 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-07 11:25:43,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575158546] [2020-07-07 11:25:43,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990481817] [2020-07-07 11:25:43,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:44,092 INFO L264 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:44,096 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-07-07 11:25:44,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:25:44,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-07 11:25:44,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784139680] [2020-07-07 11:25:44,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:25:44,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:44,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:25:44,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:25:44,138 INFO L87 Difference]: Start difference. First operand 5531 states and 7093 transitions. Second operand 3 states. [2020-07-07 11:25:44,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:44,722 INFO L93 Difference]: Finished difference Result 9610 states and 12262 transitions. [2020-07-07 11:25:44,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:25:44,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2020-07-07 11:25:44,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:44,728 INFO L225 Difference]: With dead ends: 9610 [2020-07-07 11:25:44,728 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:25:44,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:25:44,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:25:44,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:25:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:25:44,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:25:44,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-07-07 11:25:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:44,748 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:25:44,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:25:44,748 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:25:44,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:25:44,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:44,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:25:45,422 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 134 [2020-07-07 11:25:45,593 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 134 [2020-07-07 11:25:46,070 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 36 [2020-07-07 11:25:46,358 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 26 [2020-07-07 11:25:46,655 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 26 [2020-07-07 11:25:46,658 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:25:46,659 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-07 11:25:46,659 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:25:46,659 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,659 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-07 11:25:46,660 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-07 11:25:46,661 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-07 11:25:46,661 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-07 11:25:46,661 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-07 11:25:46,661 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-07 11:25:46,661 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-07 11:25:46,662 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-07 11:25:46,662 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-07 11:25:46,662 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-07 11:25:46,662 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,662 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-07 11:25:46,663 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,664 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 457) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-07 11:25:46,665 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-07 11:25:46,666 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-07 11:25:46,667 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-07 11:25:46,668 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-07 11:25:46,669 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-07 11:25:46,670 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,671 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-07 11:25:46,672 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-07 11:25:46,673 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,674 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-07 11:25:46,675 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-07 11:25:46,676 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-07 11:25:46,677 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-07 11:25:46,678 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-07 11:25:46,678 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-07 11:25:46,678 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,678 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,678 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,678 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|)) (.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse5 (= ~a25~0 |old(~a25~0)|))) (let ((.cse0 (and .cse2 (= ~a17~0 |old(~a17~0)|) .cse3 .cse4 .cse5)) (.cse1 (not (<= |old(~a17~0)| 8)))) (and (or (not (<= |old(~a28~0)| 9)) .cse0 .cse1) (or (not (<= |old(~a25~0)| 0)) .cse0 .cse1) (or (not (= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4 (= 8 ~a17~0) .cse5))))) [2020-07-07 11:25:46,678 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-07 11:25:46,679 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,680 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-07 11:25:46,681 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-07 11:25:46,682 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-07 11:25:46,683 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-07 11:25:46,684 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:25:46,685 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (<= ~a25~0 0) (= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-07 11:25:46,685 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:25:46,686 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:25:46,686 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0))) [2020-07-07 11:25:46,686 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (= 8 |old(~a17~0)|)) (and .cse0 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (= 8 ~a17~0) (not (<= |old(~a11~0)| 0)))) [2020-07-07 11:25:46,686 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-07 11:25:46,686 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-07 11:25:46,686 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (= 8 |old(~a17~0)|)) (and .cse0 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (= 8 ~a17~0) (not (<= |old(~a11~0)| 0)))) [2020-07-07 11:25:46,686 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-07 11:25:46,687 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-07 11:25:46,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:25:46 BoogieIcfgContainer [2020-07-07 11:25:46,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:25:46,707 INFO L168 Benchmark]: Toolchain (without parser) took 22417.03 ms. Allocated memory was 137.9 MB in the beginning and 558.9 MB in the end (delta: 421.0 MB). Free memory was 99.5 MB in the beginning and 474.4 MB in the end (delta: -375.0 MB). Peak memory consumption was 453.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:46,708 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 11:25:46,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.93 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 99.2 MB in the beginning and 170.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:46,710 INFO L168 Benchmark]: Boogie Preprocessor took 93.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:46,711 INFO L168 Benchmark]: RCFGBuilder took 1115.03 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 181.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:46,711 INFO L168 Benchmark]: TraceAbstraction took 20473.15 ms. Allocated memory was 235.4 MB in the beginning and 558.9 MB in the end (delta: 323.5 MB). Free memory was 180.1 MB in the beginning and 474.4 MB in the end (delta: -294.3 MB). Peak memory consumption was 436.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:46,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.93 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 99.2 MB in the beginning and 170.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1115.03 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 181.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20473.15 ms. Allocated memory was 235.4 MB in the beginning and 558.9 MB in the end (delta: 323.5 MB). Free memory was 180.1 MB in the beginning and 474.4 MB in the end (delta: -294.3 MB). Peak memory consumption was 436.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 457]: 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: (((((!(8 == \old(a17)) || (a17 <= 8 && a28 <= 9)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || (a17 <= 8 && a25 <= 0)) || 8 == a17) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.6s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 370 SDtfs, 5832 SDslu, 416 SDs, 0 SdLazy, 7968 SolverSat, 2034 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 895 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5531occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1340 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 125 PreInvPairs, 201 NumberOfFragments, 239 HoareAnnotationTreeSize, 125 FomulaSimplifications, 84582 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8025 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1814 NumberOfCodeBlocks, 1814 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1801 ConstructedInterpolants, 0 QuantifiedInterpolants, 738029 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2131 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 665/721 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...