/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:25:10,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:25:10,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:25:10,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:25:10,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:25:10,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:25:10,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:25:10,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:25:10,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:25:10,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:25:10,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:25:10,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:25:10,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:25:10,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:25:10,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:25:10,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:25:10,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:25:10,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:25:10,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:25:10,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:25:10,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:25:10,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:25:10,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:25:10,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:25:10,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:25:10,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:25:10,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:25:10,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:25:10,139 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 [2020-07-21 11:25:10,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:25:10,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:25:10,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:25:10,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:25:10,173 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:25:10,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:25:10,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:25:10,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:25:10,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:25:10,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:25:10,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:25:10,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:25:10,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:25:10,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:25:10,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:25:10,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:25:10,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:25:10,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:25:10,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:25:10,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:25:10,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:25:10,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:25:10,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:25:10,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:25:10,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:25:10,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:25:10,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:10,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:25:10,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:25:10,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:25:10,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:25:10,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:25:10,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:25:10,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:25:10,507 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:25:10,508 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-07-21 11:25:10,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84839c9c1/bbdd454d36ce4e8b85d9d393cf49d0ad/FLAG381731f30 [2020-07-21 11:25:11,265 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:25:11,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-07-21 11:25:11,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84839c9c1/bbdd454d36ce4e8b85d9d393cf49d0ad/FLAG381731f30 [2020-07-21 11:25:11,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84839c9c1/bbdd454d36ce4e8b85d9d393cf49d0ad [2020-07-21 11:25:11,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:25:11,429 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:25:11,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:11,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:25:11,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:25:11,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5957ebad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11, skipping insertion in model container [2020-07-21 11:25:11,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:25:11,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:25:11,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:11,917 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:25:12,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:12,217 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:25:12,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12 WrapperNode [2020-07-21 11:25:12,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:12,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:25:12,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:25:12,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:25:12,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (1/1) ... [2020-07-21 11:25:12,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:25:12,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:25:12,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:25:12,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:25:12,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (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 [2020-07-21 11:25:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:25:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:25:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:25:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:25:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:25:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:25:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:25:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:25:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:25:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:25:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:25:13,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:25:13,660 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:25:13,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:25:13 BoogieIcfgContainer [2020-07-21 11:25:13,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:25:13,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:25:13,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:25:13,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:25:13,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:25:11" (1/3) ... [2020-07-21 11:25:13,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c4ed2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:25:13, skipping insertion in model container [2020-07-21 11:25:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:12" (2/3) ... [2020-07-21 11:25:13,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c4ed2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:25:13, skipping insertion in model container [2020-07-21 11:25:13,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:25:13" (3/3) ... [2020-07-21 11:25:13,678 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-07-21 11:25:13,692 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:25:13,702 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:25:13,720 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:25:13,753 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:25:13,753 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:25:13,754 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:25:13,754 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:25:13,754 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:25:13,754 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:25:13,755 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:25:13,755 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:25:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 11:25:13,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-21 11:25:13,799 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:13,801 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:13,801 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:13,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-07-21 11:25:13,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:13,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471964012] [2020-07-21 11:25:13,824 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:13,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:13,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:14,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:14,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471964012] [2020-07-21 11:25:14,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:14,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:14,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578128403] [2020-07-21 11:25:14,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:14,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:14,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:14,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:14,126 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 11:25:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:15,170 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 11:25:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:15,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-21 11:25:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:15,210 INFO L225 Difference]: With dead ends: 572 [2020-07-21 11:25:15,211 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 11:25:15,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 11:25:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 11:25:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 11:25:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 11:25:15,349 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 109 [2020-07-21 11:25:15,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:15,351 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 11:25:15,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 11:25:15,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 11:25:15,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:15,364 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:15,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:15,578 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:15,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:15,579 INFO L82 PathProgramCache]: Analyzing trace with hash -609512656, now seen corresponding path program 1 times [2020-07-21 11:25:15,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:15,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322475016] [2020-07-21 11:25:15,580 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:15,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:15,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:15,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:15,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322475016] [2020-07-21 11:25:15,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:15,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:25:15,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380740512] [2020-07-21 11:25:15,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:25:15,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:15,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:25:15,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:25:15,741 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 11:25:16,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:16,660 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 11:25:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:25:16,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-07-21 11:25:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:16,670 INFO L225 Difference]: With dead ends: 842 [2020-07-21 11:25:16,670 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 11:25:16,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:25:16,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 11:25:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 11:25:16,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 11:25:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-21 11:25:16,713 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 119 [2020-07-21 11:25:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:16,714 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-21 11:25:16,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:25:16,714 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-21 11:25:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 11:25:16,717 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:16,717 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:16,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:16,933 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:16,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:16,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1252784430, now seen corresponding path program 1 times [2020-07-21 11:25:16,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:16,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419687747] [2020-07-21 11:25:16,936 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:17,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:17,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:17,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:17,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419687747] [2020-07-21 11:25:17,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:17,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:17,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883050436] [2020-07-21 11:25:17,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:17,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:17,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:17,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:17,094 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-21 11:25:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:17,654 INFO L93 Difference]: Finished difference Result 1650 states and 2372 transitions. [2020-07-21 11:25:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:17,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-21 11:25:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:17,663 INFO L225 Difference]: With dead ends: 1650 [2020-07-21 11:25:17,663 INFO L226 Difference]: Without dead ends: 1100 [2020-07-21 11:25:17,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:17,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-07-21 11:25:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1100. [2020-07-21 11:25:17,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1100 states. [2020-07-21 11:25:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1419 transitions. [2020-07-21 11:25:17,717 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1419 transitions. Word has length 120 [2020-07-21 11:25:17,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:17,718 INFO L479 AbstractCegarLoop]: Abstraction has 1100 states and 1419 transitions. [2020-07-21 11:25:17,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:17,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1419 transitions. [2020-07-21 11:25:17,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 11:25:17,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:17,723 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:17,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:17,935 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:17,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:17,936 INFO L82 PathProgramCache]: Analyzing trace with hash 696610123, now seen corresponding path program 1 times [2020-07-21 11:25:17,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:17,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758145252] [2020-07-21 11:25:17,937 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:18,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:18,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:18,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:18,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758145252] [2020-07-21 11:25:18,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:18,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:25:18,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568982388] [2020-07-21 11:25:18,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:25:18,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:18,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:25:18,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:25:18,248 INFO L87 Difference]: Start difference. First operand 1100 states and 1419 transitions. Second operand 7 states. [2020-07-21 11:25:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:20,020 INFO L93 Difference]: Finished difference Result 3362 states and 4642 transitions. [2020-07-21 11:25:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:25:20,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-07-21 11:25:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:20,041 INFO L225 Difference]: With dead ends: 3362 [2020-07-21 11:25:20,041 INFO L226 Difference]: Without dead ends: 2268 [2020-07-21 11:25:20,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 275 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:25:20,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2020-07-21 11:25:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2071. [2020-07-21 11:25:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2071 states. [2020-07-21 11:25:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 2709 transitions. [2020-07-21 11:25:20,148 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 2709 transitions. Word has length 140 [2020-07-21 11:25:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:20,149 INFO L479 AbstractCegarLoop]: Abstraction has 2071 states and 2709 transitions. [2020-07-21 11:25:20,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:25:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 2709 transitions. [2020-07-21 11:25:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 11:25:20,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:20,155 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2020-07-21 11:25:20,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:20,371 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:20,371 INFO L82 PathProgramCache]: Analyzing trace with hash 2128322771, now seen corresponding path program 1 times [2020-07-21 11:25:20,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:20,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487688576] [2020-07-21 11:25:20,372 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:20,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:20,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:25:20,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:20,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487688576] [2020-07-21 11:25:20,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:20,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:20,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935360376] [2020-07-21 11:25:20,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:20,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:20,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:20,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:20,534 INFO L87 Difference]: Start difference. First operand 2071 states and 2709 transitions. Second operand 3 states. [2020-07-21 11:25:21,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:21,153 INFO L93 Difference]: Finished difference Result 5502 states and 7364 transitions. [2020-07-21 11:25:21,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:21,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-21 11:25:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:21,174 INFO L225 Difference]: With dead ends: 5502 [2020-07-21 11:25:21,174 INFO L226 Difference]: Without dead ends: 3441 [2020-07-21 11:25:21,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2020-07-21 11:25:21,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3304. [2020-07-21 11:25:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3304 states. [2020-07-21 11:25:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 4339 transitions. [2020-07-21 11:25:21,291 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 4339 transitions. Word has length 144 [2020-07-21 11:25:21,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:21,291 INFO L479 AbstractCegarLoop]: Abstraction has 3304 states and 4339 transitions. [2020-07-21 11:25:21,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:21,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 4339 transitions. [2020-07-21 11:25:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 11:25:21,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:21,304 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:21,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:21,518 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:21,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1481763744, now seen corresponding path program 1 times [2020-07-21 11:25:21,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:21,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015951840] [2020-07-21 11:25:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:21,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:21,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:21,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:21,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015951840] [2020-07-21 11:25:21,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:21,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:21,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398263987] [2020-07-21 11:25:21,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:21,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:21,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:21,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:21,654 INFO L87 Difference]: Start difference. First operand 3304 states and 4339 transitions. Second operand 3 states. [2020-07-21 11:25:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:22,223 INFO L93 Difference]: Finished difference Result 5790 states and 7584 transitions. [2020-07-21 11:25:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:22,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-21 11:25:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:22,241 INFO L225 Difference]: With dead ends: 5790 [2020-07-21 11:25:22,248 INFO L226 Difference]: Without dead ends: 3439 [2020-07-21 11:25:22,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2020-07-21 11:25:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3304. [2020-07-21 11:25:22,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3304 states. [2020-07-21 11:25:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 4258 transitions. [2020-07-21 11:25:22,350 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 4258 transitions. Word has length 143 [2020-07-21 11:25:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:22,351 INFO L479 AbstractCegarLoop]: Abstraction has 3304 states and 4258 transitions. [2020-07-21 11:25:22,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 4258 transitions. [2020-07-21 11:25:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 11:25:22,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:22,363 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:25:22,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:22,578 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:22,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:22,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1995296009, now seen corresponding path program 1 times [2020-07-21 11:25:22,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:22,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944805757] [2020-07-21 11:25:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:22,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:22,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:22,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:22,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944805757] [2020-07-21 11:25:22,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:22,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:25:22,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946313929] [2020-07-21 11:25:22,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:25:22,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:22,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:25:22,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:25:22,811 INFO L87 Difference]: Start difference. First operand 3304 states and 4258 transitions. Second operand 7 states. [2020-07-21 11:25:24,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:24,265 INFO L93 Difference]: Finished difference Result 9071 states and 12125 transitions. [2020-07-21 11:25:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:25:24,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-07-21 11:25:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:24,302 INFO L225 Difference]: With dead ends: 9071 [2020-07-21 11:25:24,302 INFO L226 Difference]: Without dead ends: 5777 [2020-07-21 11:25:24,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:25:24,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5777 states. [2020-07-21 11:25:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5777 to 4845. [2020-07-21 11:25:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2020-07-21 11:25:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6164 transitions. [2020-07-21 11:25:24,473 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6164 transitions. Word has length 169 [2020-07-21 11:25:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:24,473 INFO L479 AbstractCegarLoop]: Abstraction has 4845 states and 6164 transitions. [2020-07-21 11:25:24,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:25:24,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6164 transitions. [2020-07-21 11:25:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 11:25:24,491 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:24,491 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-21 11:25:24,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:24,707 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:24,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:24,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1793441413, now seen corresponding path program 1 times [2020-07-21 11:25:24,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:24,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357815618] [2020-07-21 11:25:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:24,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:24,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 11:25:24,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 11:25:24,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357815618] [2020-07-21 11:25:24,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:24,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:25:24,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663159274] [2020-07-21 11:25:24,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:25:24,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:24,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:25:24,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:25:24,996 INFO L87 Difference]: Start difference. First operand 4845 states and 6164 transitions. Second operand 6 states. [2020-07-21 11:25:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:26,039 INFO L93 Difference]: Finished difference Result 10019 states and 13313 transitions. [2020-07-21 11:25:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:25:26,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-07-21 11:25:26,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:26,069 INFO L225 Difference]: With dead ends: 10019 [2020-07-21 11:25:26,070 INFO L226 Difference]: Without dead ends: 5458 [2020-07-21 11:25:26,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 374 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:25:26,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5458 states. [2020-07-21 11:25:26,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5458 to 4603. [2020-07-21 11:25:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4603 states. [2020-07-21 11:25:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 5734 transitions. [2020-07-21 11:25:26,275 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 5734 transitions. Word has length 189 [2020-07-21 11:25:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:26,275 INFO L479 AbstractCegarLoop]: Abstraction has 4603 states and 5734 transitions. [2020-07-21 11:25:26,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:25:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 5734 transitions. [2020-07-21 11:25:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-21 11:25:26,295 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:26,297 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-07-21 11:25:26,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:26,511 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:26,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:26,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1807537351, now seen corresponding path program 1 times [2020-07-21 11:25:26,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:26,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042050368] [2020-07-21 11:25:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:26,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:25:26,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 11:25:26,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 129 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 11:25:26,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042050368] [2020-07-21 11:25:26,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:26,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:25:26,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418484870] [2020-07-21 11:25:26,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:25:26,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:26,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:25:26,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:25:26,787 INFO L87 Difference]: Start difference. First operand 4603 states and 5734 transitions. Second operand 7 states. [2020-07-21 11:25:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:28,299 INFO L93 Difference]: Finished difference Result 7592 states and 9434 transitions. [2020-07-21 11:25:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:25:28,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-21 11:25:28,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:28,300 INFO L225 Difference]: With dead ends: 7592 [2020-07-21 11:25:28,300 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:25:28,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:25:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:25:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:25:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:25:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:25:28,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2020-07-21 11:25:28,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:28,317 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:25:28,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:25:28,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:25:28,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:25:28,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:28,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:25:29,284 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 143 [2020-07-21 11:25:29,684 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 143 [2020-07-21 11:25:30,517 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 59 [2020-07-21 11:25:31,281 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 29 [2020-07-21 11:25:32,099 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 29 [2020-07-21 11:25:32,104 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,105 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 11:25:32,106 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 11:25:32,107 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-07-21 11:25:32,108 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 11:25:32,109 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,110 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 11:25:32,111 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,112 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 11:25:32,113 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,114 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 11:25:32,115 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 11:25:32,116 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 11:25:32,117 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 11:25:32,118 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 11:25:32,119 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 11:25:32,120 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse7 (<= ~a16~0 5)) (.cse8 (<= 5 ~a16~0)) (.cse9 (not (<= |old(~a16~0)| 5))) (.cse10 (not (<= 5 |old(~a16~0)|))) (.cse1 (not (<= |old(~a20~0)| 0))) (.cse6 (<= ~a20~0 0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse4 (= 1 ~a7~0)) (.cse2 (<= ~a8~0 |old(~a8~0)|)) (.cse3 (<= ~a16~0 |old(~a16~0)|)) (.cse5 (<= |old(~a16~0)| ~a16~0)) (.cse11 (not (<= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 (not (<= |old(~a16~0)| 4)) (and .cse2 .cse3 .cse4 .cse5 .cse6)) (or .cse0 (and .cse2 .cse4 .cse7 .cse8 .cse6) .cse9 .cse1 .cse10) (or .cse0 (and .cse4 .cse7 .cse8 (<= ~a8~0 14)) (not (<= |old(~a8~0)| 14)) .cse9 .cse10) (or .cse11 .cse1 .cse6) (or .cse0 (and .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a8~0)| 13))) (or (not (<= 15 |old(~a8~0)|)) .cse11 (<= 15 ~a8~0)) (or (and .cse2 .cse3 (= ~a7~0 |old(~a7~0)|) .cse5) .cse11))) [2020-07-21 11:25:32,120 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 11:25:32,120 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,120 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,120 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,120 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 11:25:32,121 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 11:25:32,122 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,123 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 11:25:32,124 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 11:25:32,125 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:25:32,125 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 5 ~a16~0)) [2020-07-21 11:25:32,125 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:25:32,125 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:25:32,125 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (<= ~a16~0 5) (<= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 11:25:32,125 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:25:32,125 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (= 1 ~a7~0))) (or (and .cse0 .cse1 (<= ~a20~0 0)) (and .cse0 .cse1 (<= 5 ~a16~0) (<= ~a8~0 14)) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 13) .cse0) (not (<= 5 |old(~a16~0)|)))) [2020-07-21 11:25:32,125 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 11:25:32,125 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 11:25:32,125 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (= 1 ~a7~0))) (or (and .cse0 .cse1 (<= ~a20~0 0)) (and .cse0 .cse1 (<= 5 ~a16~0) (<= ~a8~0 14)) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 13) .cse0) (not (<= 5 |old(~a16~0)|)))) [2020-07-21 11:25:32,126 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:25:32,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:25:32 BoogieIcfgContainer [2020-07-21 11:25:32,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:25:32,147 INFO L168 Benchmark]: Toolchain (without parser) took 20719.41 ms. Allocated memory was 138.4 MB in the beginning and 555.2 MB in the end (delta: 416.8 MB). Free memory was 101.4 MB in the beginning and 436.7 MB in the end (delta: -335.3 MB). Peak memory consumption was 390.2 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:32,148 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:25:32,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.08 ms. Allocated memory was 138.4 MB in the beginning and 206.0 MB in the end (delta: 67.6 MB). Free memory was 101.0 MB in the beginning and 173.3 MB in the end (delta: -72.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:32,149 INFO L168 Benchmark]: Boogie Preprocessor took 108.03 ms. Allocated memory is still 206.0 MB. Free memory was 173.3 MB in the beginning and 168.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:32,150 INFO L168 Benchmark]: RCFGBuilder took 1340.04 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 183.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:32,151 INFO L168 Benchmark]: TraceAbstraction took 18475.63 ms. Allocated memory was 239.1 MB in the beginning and 555.2 MB in the end (delta: 316.1 MB). Free memory was 183.2 MB in the beginning and 436.7 MB in the end (delta: -253.5 MB). Peak memory consumption was 371.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:32,155 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 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.08 ms. Allocated memory was 138.4 MB in the beginning and 206.0 MB in the end (delta: 67.6 MB). Free memory was 101.0 MB in the beginning and 173.3 MB in the end (delta: -72.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.03 ms. Allocated memory is still 206.0 MB. Free memory was 173.3 MB in the beginning and 168.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1340.04 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 168.4 MB in the beginning and 183.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18475.63 ms. Allocated memory was 239.1 MB in the beginning and 555.2 MB in the end (delta: 316.1 MB). Free memory was 183.2 MB in the beginning and 436.7 MB in the end (delta: -253.5 MB). Peak memory consumption was 371.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: 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: 583]: Loop Invariant Derived loop invariant: (((((((1 == a7 && a16 <= 5) && a20 <= 0) || (((1 == a7 && a16 <= 5) && 5 <= a16) && a8 <= 14)) || a7 <= 0) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || (a8 <= 13 && 1 == a7)) || !(5 <= \old(a16)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.7s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 694 SDtfs, 2839 SDslu, 311 SDs, 0 SdLazy, 7176 SolverSat, 1173 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2055 GetRequests, 2013 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4845occurred 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: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 2270 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 177 PreInvPairs, 261 NumberOfFragments, 299 HoareAnnotationTreeSize, 177 FomulaSimplifications, 32777 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17208 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1339 NumberOfCodeBlocks, 1339 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2030 ConstructedInterpolants, 0 QuantifiedInterpolants, 596188 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3868 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 1016/1056 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...