/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 22:13:47,137 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-21 22:13:47,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:13:47,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:13:47,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:13:47,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:13:47,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:13:47,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:13:47,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:13:47,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:13:47,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:13:47,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:13:47,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:13:47,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:13:47,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:13:47,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:13:47,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:13:47,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:13:47,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:13:47,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:13:47,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:13:47,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:13:47,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 22:13:47,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:13:47,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:13:47,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:13:47,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 22:13:47,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:13:47,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:13:47,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:13:47,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:13:47,251 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:13:47,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:13:47,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:13:47,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:13:47,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:13:47,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:13:47,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:13:47,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:13:47,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:13:47,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:13:47,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:13:47,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:13:47,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:13:47,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:13:47,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:13:47,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:13:47,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:13:47,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:13:47,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:13:47,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:13:47,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:13:47,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:13:47,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:13:47,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:13:47,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:13:47,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:13:47,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:13:47,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:13:47,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:13:47,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:13:47,591 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:13:47,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-08-21 22:13:47,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0819621c/1816c823133e4d928c63c6f9aa65392a/FLAG991fc46d9 [2020-08-21 22:13:48,203 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:13:48,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-08-21 22:13:48,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0819621c/1816c823133e4d928c63c6f9aa65392a/FLAG991fc46d9 [2020-08-21 22:13:48,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0819621c/1816c823133e4d928c63c6f9aa65392a [2020-08-21 22:13:48,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:13:48,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:13:48,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:13:48,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:13:48,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:13:48,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:13:48" (1/1) ... [2020-08-21 22:13:48,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8f57a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:48, skipping insertion in model container [2020-08-21 22:13:48,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:13:48" (1/1) ... [2020-08-21 22:13:48,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:13:48,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:13:48,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:13:48,962 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:13:49,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:13:49,176 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:13:49,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49 WrapperNode [2020-08-21 22:13:49,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:13:49,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:13:49,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:13:49,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:13:49,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... [2020-08-21 22:13:49,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:13:49,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:13:49,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:13:49,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:13:49,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:13:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:13:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:13:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 22:13:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:13:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 22:13:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:13:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:13:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 22:13:49,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:13:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:13:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:13:50,765 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:13:50,766 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 22:13:50,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:13:50 BoogieIcfgContainer [2020-08-21 22:13:50,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:13:50,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:13:50,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:13:50,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:13:50,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:13:48" (1/3) ... [2020-08-21 22:13:50,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c746a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:13:50, skipping insertion in model container [2020-08-21 22:13:50,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:13:49" (2/3) ... [2020-08-21 22:13:50,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c746a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:13:50, skipping insertion in model container [2020-08-21 22:13:50,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:13:50" (3/3) ... [2020-08-21 22:13:50,780 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-08-21 22:13:50,791 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:13:50,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:13:50,813 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:13:50,839 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:13:50,839 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:13:50,840 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:13:50,840 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:13:50,840 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:13:50,840 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:13:50,840 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:13:50,841 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:13:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-21 22:13:50,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-21 22:13:50,883 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:13:50,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:13:50,886 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:13:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:13:50,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-08-21 22:13:50,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:13:50,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475852729] [2020-08-21 22:13:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:13:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:51,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:13:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:13:51,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475852729] [2020-08-21 22:13:51,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:13:51,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 22:13:51,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581656384] [2020-08-21 22:13:51,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 22:13:51,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:13:51,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 22:13:51,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:13:51,526 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-21 22:13:53,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:13:53,130 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-08-21 22:13:53,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 22:13:53,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-08-21 22:13:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:13:53,150 INFO L225 Difference]: With dead ends: 627 [2020-08-21 22:13:53,150 INFO L226 Difference]: Without dead ends: 327 [2020-08-21 22:13:53,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 22:13:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-21 22:13:53,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-08-21 22:13:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-21 22:13:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-08-21 22:13:53,264 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 142 [2020-08-21 22:13:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:13:53,268 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-08-21 22:13:53,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 22:13:53,268 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-08-21 22:13:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-21 22:13:53,282 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:13:53,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:13:53,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:13:53,283 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:13:53,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:13:53,284 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-08-21 22:13:53,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:13:53,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612327229] [2020-08-21 22:13:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:13:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:53,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:13:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:53,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:13:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:13:53,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612327229] [2020-08-21 22:13:53,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:13:53,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 22:13:53,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928287606] [2020-08-21 22:13:53,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:13:53,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:13:53,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:13:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:13:53,517 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-08-21 22:13:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:13:54,398 INFO L93 Difference]: Finished difference Result 635 states and 968 transitions. [2020-08-21 22:13:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 22:13:54,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2020-08-21 22:13:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:13:54,404 INFO L225 Difference]: With dead ends: 635 [2020-08-21 22:13:54,406 INFO L226 Difference]: Without dead ends: 322 [2020-08-21 22:13:54,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 22:13:54,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-08-21 22:13:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2020-08-21 22:13:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-08-21 22:13:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2020-08-21 22:13:54,457 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 157 [2020-08-21 22:13:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:13:54,462 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2020-08-21 22:13:54,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:13:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2020-08-21 22:13:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-21 22:13:54,472 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:13:54,473 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:13:54,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 22:13:54,473 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:13:54,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:13:54,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-08-21 22:13:54,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:13:54,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412507387] [2020-08-21 22:13:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:13:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:54,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:13:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:13:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:13:54,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412507387] [2020-08-21 22:13:54,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:13:54,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 22:13:54,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136183941] [2020-08-21 22:13:54,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:13:54,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:13:54,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:13:54,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:13:54,868 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states. [2020-08-21 22:13:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:13:56,896 INFO L93 Difference]: Finished difference Result 1090 states and 1576 transitions. [2020-08-21 22:13:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 22:13:56,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2020-08-21 22:13:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:13:56,903 INFO L225 Difference]: With dead ends: 1090 [2020-08-21 22:13:56,903 INFO L226 Difference]: Without dead ends: 786 [2020-08-21 22:13:56,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-21 22:13:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-08-21 22:13:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 614. [2020-08-21 22:13:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-08-21 22:13:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 801 transitions. [2020-08-21 22:13:56,940 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 801 transitions. Word has length 164 [2020-08-21 22:13:56,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:13:56,941 INFO L479 AbstractCegarLoop]: Abstraction has 614 states and 801 transitions. [2020-08-21 22:13:56,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:13:56,941 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 801 transitions. [2020-08-21 22:13:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-21 22:13:56,945 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:13:56,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:13:56,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 22:13:56,946 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:13:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:13:56,946 INFO L82 PathProgramCache]: Analyzing trace with hash -393389681, now seen corresponding path program 1 times [2020-08-21 22:13:56,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:13:56,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114695177] [2020-08-21 22:13:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:13:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:13:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:57,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:13:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:57,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 22:13:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-21 22:13:57,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114695177] [2020-08-21 22:13:57,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:13:57,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 22:13:57,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398978993] [2020-08-21 22:13:57,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:13:57,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:13:57,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:13:57,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:13:57,301 INFO L87 Difference]: Start difference. First operand 614 states and 801 transitions. Second operand 7 states. [2020-08-21 22:13:59,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:13:59,305 INFO L93 Difference]: Finished difference Result 2123 states and 2814 transitions. [2020-08-21 22:13:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 22:13:59,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-08-21 22:13:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:13:59,319 INFO L225 Difference]: With dead ends: 2123 [2020-08-21 22:13:59,319 INFO L226 Difference]: Without dead ends: 1515 [2020-08-21 22:13:59,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-21 22:13:59,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-08-21 22:13:59,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1361. [2020-08-21 22:13:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2020-08-21 22:13:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1684 transitions. [2020-08-21 22:13:59,402 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1684 transitions. Word has length 177 [2020-08-21 22:13:59,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:13:59,404 INFO L479 AbstractCegarLoop]: Abstraction has 1361 states and 1684 transitions. [2020-08-21 22:13:59,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:13:59,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1684 transitions. [2020-08-21 22:13:59,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-08-21 22:13:59,412 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:13:59,412 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 22:13:59,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 22:13:59,413 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:13:59,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:13:59,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-08-21 22:13:59,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:13:59,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777344404] [2020-08-21 22:13:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:13:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:59,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:13:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:59,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:13:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:59,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-21 22:13:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:13:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 22:13:59,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777344404] [2020-08-21 22:13:59,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:13:59,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 22:13:59,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392832005] [2020-08-21 22:13:59,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:13:59,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:13:59,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:13:59,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:13:59,725 INFO L87 Difference]: Start difference. First operand 1361 states and 1684 transitions. Second operand 7 states. [2020-08-21 22:14:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:01,060 INFO L93 Difference]: Finished difference Result 2302 states and 2929 transitions. [2020-08-21 22:14:01,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 22:14:01,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-08-21 22:14:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:01,066 INFO L225 Difference]: With dead ends: 2302 [2020-08-21 22:14:01,066 INFO L226 Difference]: Without dead ends: 947 [2020-08-21 22:14:01,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 22:14:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-08-21 22:14:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 921. [2020-08-21 22:14:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-08-21 22:14:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1059 transitions. [2020-08-21 22:14:01,107 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1059 transitions. Word has length 221 [2020-08-21 22:14:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:01,108 INFO L479 AbstractCegarLoop]: Abstraction has 921 states and 1059 transitions. [2020-08-21 22:14:01,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:14:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1059 transitions. [2020-08-21 22:14:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-08-21 22:14:01,114 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:14:01,115 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:14:01,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 22:14:01,116 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:14:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:14:01,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-08-21 22:14:01,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:14:01,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301302073] [2020-08-21 22:14:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:14:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:01,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:14:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:01,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:14:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:01,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 22:14:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:01,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 22:14:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 125 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-21 22:14:01,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301302073] [2020-08-21 22:14:01,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:14:01,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 22:14:01,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5555935] [2020-08-21 22:14:01,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:14:01,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:14:01,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:14:01,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:14:01,484 INFO L87 Difference]: Start difference. First operand 921 states and 1059 transitions. Second operand 9 states. [2020-08-21 22:14:04,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:04,360 INFO L93 Difference]: Finished difference Result 2578 states and 2985 transitions. [2020-08-21 22:14:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 22:14:04,361 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2020-08-21 22:14:04,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:04,367 INFO L225 Difference]: With dead ends: 2578 [2020-08-21 22:14:04,367 INFO L226 Difference]: Without dead ends: 1363 [2020-08-21 22:14:04,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-21 22:14:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-08-21 22:14:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1069. [2020-08-21 22:14:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2020-08-21 22:14:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1190 transitions. [2020-08-21 22:14:04,400 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1190 transitions. Word has length 247 [2020-08-21 22:14:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:04,401 INFO L479 AbstractCegarLoop]: Abstraction has 1069 states and 1190 transitions. [2020-08-21 22:14:04,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:14:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1190 transitions. [2020-08-21 22:14:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-08-21 22:14:04,406 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:14:04,407 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:14:04,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 22:14:04,407 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:14:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:14:04,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1377999404, now seen corresponding path program 1 times [2020-08-21 22:14:04,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:14:04,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114986144] [2020-08-21 22:14:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:14:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:04,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:14:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:04,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:14:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-21 22:14:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:04,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 22:14:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 122 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-21 22:14:04,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114986144] [2020-08-21 22:14:04,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:14:04,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 22:14:04,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353662554] [2020-08-21 22:14:04,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 22:14:04,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:14:04,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 22:14:04,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:14:04,663 INFO L87 Difference]: Start difference. First operand 1069 states and 1190 transitions. Second operand 5 states. [2020-08-21 22:14:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:05,573 INFO L93 Difference]: Finished difference Result 2580 states and 2875 transitions. [2020-08-21 22:14:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 22:14:05,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-08-21 22:14:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:05,586 INFO L225 Difference]: With dead ends: 2580 [2020-08-21 22:14:05,586 INFO L226 Difference]: Without dead ends: 1517 [2020-08-21 22:14:05,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 22:14:05,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-21 22:14:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1215. [2020-08-21 22:14:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2020-08-21 22:14:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1359 transitions. [2020-08-21 22:14:05,631 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1359 transitions. Word has length 267 [2020-08-21 22:14:05,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:05,632 INFO L479 AbstractCegarLoop]: Abstraction has 1215 states and 1359 transitions. [2020-08-21 22:14:05,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 22:14:05,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1359 transitions. [2020-08-21 22:14:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-21 22:14:05,639 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:14:05,639 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:14:05,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 22:14:05,640 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:14:05,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:14:05,640 INFO L82 PathProgramCache]: Analyzing trace with hash 780172313, now seen corresponding path program 1 times [2020-08-21 22:14:05,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:14:05,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306074054] [2020-08-21 22:14:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:14:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:14:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:05,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:14:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:05,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 22:14:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 22:14:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:05,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 22:14:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:05,907 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 134 proven. 43 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-08-21 22:14:05,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306074054] [2020-08-21 22:14:05,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:14:05,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 22:14:05,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498633404] [2020-08-21 22:14:05,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:14:05,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:14:05,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:14:05,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:14:05,910 INFO L87 Difference]: Start difference. First operand 1215 states and 1359 transitions. Second operand 7 states. [2020-08-21 22:14:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:07,518 INFO L93 Difference]: Finished difference Result 3491 states and 3931 transitions. [2020-08-21 22:14:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 22:14:07,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-08-21 22:14:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:07,526 INFO L225 Difference]: With dead ends: 3491 [2020-08-21 22:14:07,527 INFO L226 Difference]: Without dead ends: 2126 [2020-08-21 22:14:07,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 22:14:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2020-08-21 22:14:07,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 1966. [2020-08-21 22:14:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-08-21 22:14:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2130 transitions. [2020-08-21 22:14:07,580 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2130 transitions. Word has length 274 [2020-08-21 22:14:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:07,580 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 2130 transitions. [2020-08-21 22:14:07,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:14:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2130 transitions. [2020-08-21 22:14:07,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-08-21 22:14:07,587 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:14:07,587 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:14:07,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 22:14:07,588 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:14:07,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:14:07,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-08-21 22:14:07,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:14:07,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009390319] [2020-08-21 22:14:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:14:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:07,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:14:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:07,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:14:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:07,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 22:14:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:07,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 22:14:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 245 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-08-21 22:14:07,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009390319] [2020-08-21 22:14:07,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:14:07,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 22:14:07,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545078722] [2020-08-21 22:14:07,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:14:07,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:14:07,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:14:07,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:14:07,976 INFO L87 Difference]: Start difference. First operand 1966 states and 2130 transitions. Second operand 8 states. [2020-08-21 22:14:09,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:09,965 INFO L93 Difference]: Finished difference Result 3783 states and 4107 transitions. [2020-08-21 22:14:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 22:14:09,966 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 305 [2020-08-21 22:14:09,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:09,974 INFO L225 Difference]: With dead ends: 3783 [2020-08-21 22:14:09,975 INFO L226 Difference]: Without dead ends: 2269 [2020-08-21 22:14:09,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-21 22:14:09,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2020-08-21 22:14:10,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2110. [2020-08-21 22:14:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2110 states. [2020-08-21 22:14:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2262 transitions. [2020-08-21 22:14:10,037 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2262 transitions. Word has length 305 [2020-08-21 22:14:10,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:10,038 INFO L479 AbstractCegarLoop]: Abstraction has 2110 states and 2262 transitions. [2020-08-21 22:14:10,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:14:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2262 transitions. [2020-08-21 22:14:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-08-21 22:14:10,045 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:14:10,045 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:14:10,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 22:14:10,046 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:14:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:14:10,046 INFO L82 PathProgramCache]: Analyzing trace with hash -989358343, now seen corresponding path program 1 times [2020-08-21 22:14:10,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:14:10,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437726814] [2020-08-21 22:14:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:14:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:14:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:14:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:10,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-21 22:14:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:10,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 22:14:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:10,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 22:14:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 175 proven. 83 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-08-21 22:14:10,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437726814] [2020-08-21 22:14:10,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:14:10,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 22:14:10,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435390790] [2020-08-21 22:14:10,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:14:10,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:14:10,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:14:10,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:14:10,452 INFO L87 Difference]: Start difference. First operand 2110 states and 2262 transitions. Second operand 8 states. [2020-08-21 22:14:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:12,122 INFO L93 Difference]: Finished difference Result 4369 states and 4730 transitions. [2020-08-21 22:14:12,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 22:14:12,123 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 319 [2020-08-21 22:14:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:12,129 INFO L225 Difference]: With dead ends: 4369 [2020-08-21 22:14:12,129 INFO L226 Difference]: Without dead ends: 1644 [2020-08-21 22:14:12,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-21 22:14:12,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2020-08-21 22:14:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1494. [2020-08-21 22:14:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-08-21 22:14:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 1552 transitions. [2020-08-21 22:14:12,169 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 1552 transitions. Word has length 319 [2020-08-21 22:14:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:12,169 INFO L479 AbstractCegarLoop]: Abstraction has 1494 states and 1552 transitions. [2020-08-21 22:14:12,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:14:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 1552 transitions. [2020-08-21 22:14:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-08-21 22:14:12,174 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:14:12,175 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:14:12,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 22:14:12,175 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:14:12,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:14:12,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2013453794, now seen corresponding path program 1 times [2020-08-21 22:14:12,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:14:12,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243090865] [2020-08-21 22:14:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:14:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:14:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:12,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:14:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:12,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 22:14:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:12,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-21 22:14:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:12,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-08-21 22:14:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:14:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 208 proven. 4 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-08-21 22:14:12,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243090865] [2020-08-21 22:14:12,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:14:12,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 22:14:12,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340407769] [2020-08-21 22:14:12,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 22:14:12,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:14:12,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 22:14:12,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:14:12,605 INFO L87 Difference]: Start difference. First operand 1494 states and 1552 transitions. Second operand 5 states. [2020-08-21 22:14:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:14:13,427 INFO L93 Difference]: Finished difference Result 2836 states and 2949 transitions. [2020-08-21 22:14:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 22:14:13,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 361 [2020-08-21 22:14:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:14:13,428 INFO L225 Difference]: With dead ends: 2836 [2020-08-21 22:14:13,428 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 22:14:13,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 22:14:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 22:14:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 22:14:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 22:14:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 22:14:13,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 361 [2020-08-21 22:14:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:14:13,435 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 22:14:13,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 22:14:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 22:14:13,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 22:14:13,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 22:14:13,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 22:14:13,841 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2020-08-21 22:14:13,976 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2020-08-21 22:14:15,033 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 63 [2020-08-21 22:14:15,608 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 59 [2020-08-21 22:14:16,192 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 59 [2020-08-21 22:14:16,196 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:14:16,197 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-21 22:14:16,197 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:14:16,198 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,198 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,198 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,198 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,198 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-21 22:14:16,199 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,200 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-21 22:14:16,201 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-21 22:14:16,202 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-08-21 22:14:16,203 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-21 22:14:16,204 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-21 22:14:16,205 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-21 22:14:16,206 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,207 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-21 22:14:16,208 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-21 22:14:16,209 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,210 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-21 22:14:16,211 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,212 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-21 22:14:16,213 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,214 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-21 22:14:16,215 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-21 22:14:16,216 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-21 22:14:16,217 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,217 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,217 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,217 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse3 (= ~a28~0 |old(~a28~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a19~0 1)) (.cse15 (= ~a25~0 |old(~a25~0)|))) (let ((.cse12 (not (<= |old(~a17~0)| 7))) (.cse7 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= |old(~a19~0)| 1))) (.cse14 (and .cse3 .cse4 .cse5 .cse6 .cse15)) (.cse13 (= |old(~a17~0)| |old(~a28~0)|)) (.cse8 (not (<= |old(~a17~0)| 8))) (.cse9 (and .cse3 .cse4 .cse5 .cse15 (= ~a19~0 |old(~a19~0)|))) (.cse11 (= 11 |old(~a28~0)|)) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse2 (= |old(~a11~0)| 1)) (.cse10 (not (<= |old(~a19~0)| 0)))) (and (or (not (= |old(~a25~0)| 1)) .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 (= ~a25~0 1))) (or .cse7 .cse8 .cse9 .cse1 .cse10) (or .cse8 .cse9 .cse11 .cse12 .cse10 .cse13) (or .cse0 .cse11 .cse12 (not (<= 10 |old(~a28~0)|)) .cse14 (not .cse2)) (or .cse7 .cse8 .cse0 .cse9) (or .cse0 .cse11 .cse1 .cse14 .cse13) (or .cse8 .cse9 (= 9 |old(~a28~0)|) .cse11 .cse1 .cse2 .cse10)))) [2020-08-21 22:14:16,217 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,217 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-21 22:14:16,218 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,219 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-21 22:14:16,220 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-21 22:14:16,221 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-21 22:14:16,222 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-21 22:14:16,223 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-21 22:14:16,224 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-21 22:14:16,225 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:14:16,225 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (<= 8 ~a17~0) (not (= ~a11~0 1)) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-08-21 22:14:16,225 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 22:14:16,225 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:14:16,225 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (= |old(~a11~0)| 1) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|))) [2020-08-21 22:14:16,226 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (= ~a11~0 1))) (let ((.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse1 (<= ~a28~0 7)) (.cse10 (<= 8 ~a17~0)) (.cse7 (not .cse11)) (.cse2 (<= ~a17~0 8)) (.cse9 (not (= ~a28~0 ~a17~0))) (.cse6 (<= ~a19~0 0)) (.cse4 (not (= |old(~a25~0)| 1))) (.cse0 (= ~a19~0 1)) (.cse3 (<= ~a17~0 7)) (.cse8 (not (= ~a28~0 11)))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (and (not (= ~a28~0 9)) .cse4 .cse5 .cse6 .cse7 .cse8) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) .cse0 (= ~a25~0 |old(~a25~0)|) .cse1 .cse2) (and .cse4 .cse5 .cse6 .cse1) (and .cse9 .cse4 .cse0 .cse10 .cse2 .cse8) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse4 .cse0 .cse10 (= ~a25~0 1) .cse7 .cse2) (and .cse9 .cse6 .cse3 .cse8) (= |old(~a11~0)| 1) (and .cse4 .cse0 (<= 10 ~a28~0) .cse11 .cse3 .cse8)))) [2020-08-21 22:14:16,226 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-21 22:14:16,226 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-21 22:14:16,226 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (= ~a11~0 1))) (let ((.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse1 (<= ~a28~0 7)) (.cse10 (<= 8 ~a17~0)) (.cse7 (not .cse11)) (.cse2 (<= ~a17~0 8)) (.cse9 (not (= ~a28~0 ~a17~0))) (.cse6 (<= ~a19~0 0)) (.cse4 (not (= |old(~a25~0)| 1))) (.cse0 (= ~a19~0 1)) (.cse3 (<= ~a17~0 7)) (.cse8 (not (= ~a28~0 11)))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (and (not (= ~a28~0 9)) .cse4 .cse5 .cse6 .cse7 .cse8) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) .cse0 (= ~a25~0 |old(~a25~0)|) .cse1 .cse2) (and .cse4 .cse5 .cse6 .cse1) (and .cse9 .cse4 .cse0 .cse10 .cse2 .cse8) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse4 .cse0 .cse10 (= ~a25~0 1) .cse7 .cse2) (and .cse9 .cse6 .cse3 .cse8) (= |old(~a11~0)| 1) (and .cse4 .cse0 (<= 10 ~a28~0) .cse11 .cse3 .cse8)))) [2020-08-21 22:14:16,226 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-21 22:14:16,226 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-21 22:14:16,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 10:14:16 BoogieIcfgContainer [2020-08-21 22:14:16,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 22:14:16,254 INFO L168 Benchmark]: Toolchain (without parser) took 27761.96 ms. Allocated memory was 140.5 MB in the beginning and 610.3 MB in the end (delta: 469.8 MB). Free memory was 102.2 MB in the beginning and 188.4 MB in the end (delta: -86.2 MB). Peak memory consumption was 441.0 MB. Max. memory is 7.1 GB. [2020-08-21 22:14:16,254 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-21 22:14:16,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.36 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 172.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-08-21 22:14:16,256 INFO L168 Benchmark]: Boogie Preprocessor took 129.68 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-21 22:14:16,257 INFO L168 Benchmark]: RCFGBuilder took 1463.00 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 180.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-08-21 22:14:16,258 INFO L168 Benchmark]: TraceAbstraction took 25478.27 ms. Allocated memory was 237.0 MB in the beginning and 610.3 MB in the end (delta: 373.3 MB). Free memory was 180.1 MB in the beginning and 188.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 422.5 MB. Max. memory is 7.1 GB. [2020-08-21 22:14:16,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.36 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 172.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.68 ms. Allocated memory is still 205.0 MB. Free memory was 172.1 MB in the beginning and 167.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1463.00 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 180.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25478.27 ms. Allocated memory was 237.0 MB in the beginning and 610.3 MB in the end (delta: 373.3 MB). Free memory was 180.1 MB in the beginning and 188.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 422.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((a19 == 1 && a28 <= 7) && a17 <= 8) && a17 <= 7) || !(\old(a19) == 1)) || !(8 <= \old(a17))) || (((((!(a28 == 9) && !(\old(a25) == 1)) && a17 == \old(a17)) && a19 <= 0) && !(a11 == 1)) && !(a28 == 11))) || (((((a28 == \old(a28) && a11 == \old(a11)) && a19 == 1) && a25 == \old(a25)) && a28 <= 7) && a17 <= 8)) || (((!(\old(a25) == 1) && a17 == \old(a17)) && a19 <= 0) && a28 <= 7)) || (((((!(a28 == a17) && !(\old(a25) == 1)) && a19 == 1) && 8 <= a17) && a17 <= 8) && !(a28 == 11))) || !(\old(a28) <= 7)) || !(\old(a17) <= 8)) || (((((!(\old(a25) == 1) && a19 == 1) && 8 <= a17) && a25 == 1) && !(a11 == 1)) && a17 <= 8)) || (((!(a28 == a17) && a19 <= 0) && a17 <= 7) && !(a28 == 11))) || \old(a11) == 1) || (((((!(\old(a25) == 1) && a19 == 1) && 10 <= a28) && a11 == 1) && a17 <= 7) && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.6s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 403 SDtfs, 6741 SDslu, 538 SDs, 0 SdLazy, 11208 SolverSat, 1772 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2110occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1437 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 95 PreInvPairs, 135 NumberOfFragments, 677 HoareAnnotationTreeSize, 95 FomulaSimplifications, 168974 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8607 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 2634 NumberOfCodeBlocks, 2634 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2623 ConstructedInterpolants, 0 QuantifiedInterpolants, 1452031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 1539/1695 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...