/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:00:30,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:00:30,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:00:30,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:00:30,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:00:30,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:00:30,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:00:30,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:00:30,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:00:30,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:00:30,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:00:30,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:00:30,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:00:30,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:00:30,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:00:30,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:00:30,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:00:30,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:00:30,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:00:30,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:00:30,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:00:30,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:00:30,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:00:30,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:00:30,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:00:30,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:00:30,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:00:30,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:00:30,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:00:30,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:00:30,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:00:30,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:00:30,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:00:30,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:00:30,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:00:30,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:00:30,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:00:30,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:00:30,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:00:30,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:00:30,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:00:30,200 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 [2020-09-24 16:00:30,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:00:30,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:00:30,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:00:30,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:00:30,250 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:00:30,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:00:30,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:00:30,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:00:30,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:00:30,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:00:30,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:00:30,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:00:30,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:00:30,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:00:30,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:00:30,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:00:30,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:00:30,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:00:30,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:00:30,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:00:30,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:00:30,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:30,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:00:30,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:00:30,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:00:30,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:00:30,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:00:30,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:00:30,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:00:30,257 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:00:30,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:00:30,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:00:30,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:00:30,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:00:30,747 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:00:30,748 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_6.c [2020-09-24 16:00:30,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15c483a01/1c6e5907e51c48fdad16055ce1d91c16/FLAG486e50ca9 [2020-09-24 16:00:31,388 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:00:31,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_6.c [2020-09-24 16:00:31,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15c483a01/1c6e5907e51c48fdad16055ce1d91c16/FLAG486e50ca9 [2020-09-24 16:00:31,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15c483a01/1c6e5907e51c48fdad16055ce1d91c16 [2020-09-24 16:00:31,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:00:31,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:00:31,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:31,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:00:31,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:00:31,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:31" (1/1) ... [2020-09-24 16:00:31,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:31, skipping insertion in model container [2020-09-24 16:00:31,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:31" (1/1) ... [2020-09-24 16:00:31,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:00:31,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:00:31,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:32,001 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:00:32,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:32,042 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:00:32,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32 WrapperNode [2020-09-24 16:00:32,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:32,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:00:32,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:00:32,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:00:32,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... [2020-09-24 16:00:32,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:00:32,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:00:32,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:00:32,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:00:32,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:00:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:00:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:00:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:00:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:00:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:00:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:00:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:00:32,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:00:32,565 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:00:32,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:32 BoogieIcfgContainer [2020-09-24 16:00:32,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:00:32,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:00:32,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:00:32,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:00:32,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:00:31" (1/3) ... [2020-09-24 16:00:32,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d354790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:32, skipping insertion in model container [2020-09-24 16:00:32,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:32" (2/3) ... [2020-09-24 16:00:32,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d354790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:32, skipping insertion in model container [2020-09-24 16:00:32,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:32" (3/3) ... [2020-09-24 16:00:32,582 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_6.c [2020-09-24 16:00:32,593 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:00:32,603 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:00:32,628 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:00:32,660 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:00:32,661 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:00:32,661 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:00:32,661 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:00:32,661 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:00:32,661 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:00:32,662 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:00:32,662 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:00:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-09-24 16:00:32,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-24 16:00:32,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:32,696 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] [2020-09-24 16:00:32,697 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:32,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:32,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1400694048, now seen corresponding path program 1 times [2020-09-24 16:00:32,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:32,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796203651] [2020-09-24 16:00:32,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:32,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:32,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:32,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:32,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 16:00:32,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 16:00:32,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-24 16:00:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:00:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:32,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:32,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:32,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:32,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:32,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796203651] [2020-09-24 16:00:32,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:32,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:32,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177980881] [2020-09-24 16:00:32,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:32,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,006 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2020-09-24 16:00:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:33,082 INFO L93 Difference]: Finished difference Result 169 states and 229 transitions. [2020-09-24 16:00:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:33,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-09-24 16:00:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:33,101 INFO L225 Difference]: With dead ends: 169 [2020-09-24 16:00:33,101 INFO L226 Difference]: Without dead ends: 112 [2020-09-24 16:00:33,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-24 16:00:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2020-09-24 16:00:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-24 16:00:33,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 142 transitions. [2020-09-24 16:00:33,159 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 142 transitions. Word has length 49 [2020-09-24 16:00:33,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,160 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 142 transitions. [2020-09-24 16:00:33,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,160 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 142 transitions. [2020-09-24 16:00:33,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 16:00:33,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,162 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] [2020-09-24 16:00:33,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:00:33,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1290717684, now seen corresponding path program 1 times [2020-09-24 16:00:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994109843] [2020-09-24 16:00:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,194 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,194 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 16:00:33,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:33,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 16:00:33,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:33,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:33,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:33,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:33,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994109843] [2020-09-24 16:00:33,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:33,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:33,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306843849] [2020-09-24 16:00:33,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:33,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,266 INFO L87 Difference]: Start difference. First operand 110 states and 142 transitions. Second operand 3 states. [2020-09-24 16:00:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:33,288 INFO L93 Difference]: Finished difference Result 135 states and 175 transitions. [2020-09-24 16:00:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:33,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-09-24 16:00:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:33,292 INFO L225 Difference]: With dead ends: 135 [2020-09-24 16:00:33,292 INFO L226 Difference]: Without dead ends: 133 [2020-09-24 16:00:33,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-24 16:00:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 110. [2020-09-24 16:00:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-24 16:00:33,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2020-09-24 16:00:33,307 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 141 transitions. Word has length 50 [2020-09-24 16:00:33,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,307 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 141 transitions. [2020-09-24 16:00:33,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 141 transitions. [2020-09-24 16:00:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 16:00:33,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,310 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] [2020-09-24 16:00:33,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:00:33,310 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,314 INFO L82 PathProgramCache]: Analyzing trace with hash 472087846, now seen corresponding path program 1 times [2020-09-24 16:00:33,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053126948] [2020-09-24 16:00:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 16:00:33,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:33,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 16:00:33,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:00:33,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,379 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:33,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:33,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:33,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:33,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053126948] [2020-09-24 16:00:33,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:33,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:33,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635439392] [2020-09-24 16:00:33,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:33,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,392 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. Second operand 3 states. [2020-09-24 16:00:33,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:33,443 INFO L93 Difference]: Finished difference Result 266 states and 357 transitions. [2020-09-24 16:00:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:33,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-09-24 16:00:33,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:33,447 INFO L225 Difference]: With dead ends: 266 [2020-09-24 16:00:33,447 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 16:00:33,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 16:00:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2020-09-24 16:00:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-24 16:00:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 240 transitions. [2020-09-24 16:00:33,470 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 240 transitions. Word has length 50 [2020-09-24 16:00:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,471 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 240 transitions. [2020-09-24 16:00:33,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 240 transitions. [2020-09-24 16:00:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 16:00:33,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,474 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] [2020-09-24 16:00:33,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:00:33,474 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1750067028, now seen corresponding path program 1 times [2020-09-24 16:00:33,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342973927] [2020-09-24 16:00:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:00:33,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:33,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-24 16:00:33,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:00:33,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:33,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:33,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:33,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:33,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342973927] [2020-09-24 16:00:33,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:33,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:33,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114528516] [2020-09-24 16:00:33,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:33,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,551 INFO L87 Difference]: Start difference. First operand 183 states and 240 transitions. Second operand 3 states. [2020-09-24 16:00:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:33,574 INFO L93 Difference]: Finished difference Result 479 states and 646 transitions. [2020-09-24 16:00:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:33,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-09-24 16:00:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:33,579 INFO L225 Difference]: With dead ends: 479 [2020-09-24 16:00:33,579 INFO L226 Difference]: Without dead ends: 325 [2020-09-24 16:00:33,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-24 16:00:33,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2020-09-24 16:00:33,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 16:00:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 426 transitions. [2020-09-24 16:00:33,631 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 426 transitions. Word has length 51 [2020-09-24 16:00:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,632 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 426 transitions. [2020-09-24 16:00:33,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 426 transitions. [2020-09-24 16:00:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 16:00:33,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,635 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] [2020-09-24 16:00:33,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:00:33,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,635 INFO L82 PathProgramCache]: Analyzing trace with hash -17356107, now seen corresponding path program 1 times [2020-09-24 16:00:33,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893407512] [2020-09-24 16:00:33,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:00:33,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:00:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-24 16:00:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:33,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:33,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893407512] [2020-09-24 16:00:33,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:33,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:33,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230834498] [2020-09-24 16:00:33,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:33,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,750 INFO L87 Difference]: Start difference. First operand 323 states and 426 transitions. Second operand 3 states. [2020-09-24 16:00:33,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:33,786 INFO L93 Difference]: Finished difference Result 399 states and 528 transitions. [2020-09-24 16:00:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:33,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-09-24 16:00:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:33,791 INFO L225 Difference]: With dead ends: 399 [2020-09-24 16:00:33,792 INFO L226 Difference]: Without dead ends: 397 [2020-09-24 16:00:33,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-24 16:00:33,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 323. [2020-09-24 16:00:33,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 16:00:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 422 transitions. [2020-09-24 16:00:33,835 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 422 transitions. Word has length 51 [2020-09-24 16:00:33,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,835 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 422 transitions. [2020-09-24 16:00:33,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,836 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 422 transitions. [2020-09-24 16:00:33,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 16:00:33,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,840 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] [2020-09-24 16:00:33,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:00:33,840 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,842 INFO L82 PathProgramCache]: Analyzing trace with hash 802147488, now seen corresponding path program 1 times [2020-09-24 16:00:33,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345021438] [2020-09-24 16:00:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 16:00:33,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:33,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-24 16:00:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:33,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:33,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:33,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:33,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345021438] [2020-09-24 16:00:33,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:33,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:33,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064785572] [2020-09-24 16:00:33,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:33,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:33,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:33,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,898 INFO L87 Difference]: Start difference. First operand 323 states and 422 transitions. Second operand 3 states. [2020-09-24 16:00:33,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:33,915 INFO L93 Difference]: Finished difference Result 395 states and 516 transitions. [2020-09-24 16:00:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:33,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-24 16:00:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:33,918 INFO L225 Difference]: With dead ends: 395 [2020-09-24 16:00:33,918 INFO L226 Difference]: Without dead ends: 393 [2020-09-24 16:00:33,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-24 16:00:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 323. [2020-09-24 16:00:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 16:00:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 418 transitions. [2020-09-24 16:00:33,931 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 418 transitions. Word has length 52 [2020-09-24 16:00:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:33,932 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 418 transitions. [2020-09-24 16:00:33,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 418 transitions. [2020-09-24 16:00:33,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 16:00:33,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:33,934 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] [2020-09-24 16:00:33,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:00:33,935 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:33,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:33,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1582250918, now seen corresponding path program 1 times [2020-09-24 16:00:33,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:33,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358672583] [2020-09-24 16:00:33,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:33,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:33,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:33,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:33,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 16:00:33,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:33,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-24 16:00:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:00:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:34,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:34,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:34,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358672583] [2020-09-24 16:00:34,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:34,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:34,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789499179] [2020-09-24 16:00:34,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:34,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:34,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:34,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,026 INFO L87 Difference]: Start difference. First operand 323 states and 418 transitions. Second operand 3 states. [2020-09-24 16:00:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,071 INFO L93 Difference]: Finished difference Result 887 states and 1164 transitions. [2020-09-24 16:00:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-24 16:00:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,075 INFO L225 Difference]: With dead ends: 887 [2020-09-24 16:00:34,075 INFO L226 Difference]: Without dead ends: 593 [2020-09-24 16:00:34,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-09-24 16:00:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591. [2020-09-24 16:00:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-09-24 16:00:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 758 transitions. [2020-09-24 16:00:34,095 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 758 transitions. Word has length 52 [2020-09-24 16:00:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:34,096 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 758 transitions. [2020-09-24 16:00:34,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 758 transitions. [2020-09-24 16:00:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 16:00:34,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:34,098 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] [2020-09-24 16:00:34,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:00:34,099 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:34,099 INFO L82 PathProgramCache]: Analyzing trace with hash 436955529, now seen corresponding path program 1 times [2020-09-24 16:00:34,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:34,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516281045] [2020-09-24 16:00:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 16:00:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:34,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-24 16:00:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:34,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:34,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:34,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516281045] [2020-09-24 16:00:34,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:34,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:34,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49251253] [2020-09-24 16:00:34,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:34,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:34,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:34,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,145 INFO L87 Difference]: Start difference. First operand 591 states and 758 transitions. Second operand 3 states. [2020-09-24 16:00:34,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,165 INFO L93 Difference]: Finished difference Result 715 states and 912 transitions. [2020-09-24 16:00:34,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-09-24 16:00:34,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,169 INFO L225 Difference]: With dead ends: 715 [2020-09-24 16:00:34,169 INFO L226 Difference]: Without dead ends: 713 [2020-09-24 16:00:34,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-09-24 16:00:34,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 591. [2020-09-24 16:00:34,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-09-24 16:00:34,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 750 transitions. [2020-09-24 16:00:34,188 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 750 transitions. Word has length 53 [2020-09-24 16:00:34,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:34,188 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 750 transitions. [2020-09-24 16:00:34,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:34,188 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 750 transitions. [2020-09-24 16:00:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 16:00:34,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:34,190 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] [2020-09-24 16:00:34,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:00:34,190 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:34,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:34,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1804891768, now seen corresponding path program 1 times [2020-09-24 16:00:34,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:34,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722098465] [2020-09-24 16:00:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 16:00:34,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:34,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-24 16:00:34,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:00:34,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:34,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:34,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:34,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:34,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722098465] [2020-09-24 16:00:34,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:34,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:34,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923415347] [2020-09-24 16:00:34,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:34,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:34,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:34,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,258 INFO L87 Difference]: Start difference. First operand 591 states and 750 transitions. Second operand 3 states. [2020-09-24 16:00:34,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,290 INFO L93 Difference]: Finished difference Result 1667 states and 2128 transitions. [2020-09-24 16:00:34,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-09-24 16:00:34,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,296 INFO L225 Difference]: With dead ends: 1667 [2020-09-24 16:00:34,296 INFO L226 Difference]: Without dead ends: 1105 [2020-09-24 16:00:34,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2020-09-24 16:00:34,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1103. [2020-09-24 16:00:34,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-09-24 16:00:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1374 transitions. [2020-09-24 16:00:34,329 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1374 transitions. Word has length 53 [2020-09-24 16:00:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:34,330 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1374 transitions. [2020-09-24 16:00:34,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1374 transitions. [2020-09-24 16:00:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 16:00:34,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:34,332 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] [2020-09-24 16:00:34,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:00:34,333 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash 2000907060, now seen corresponding path program 1 times [2020-09-24 16:00:34,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:34,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290648083] [2020-09-24 16:00:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 16:00:34,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:34,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 16:00:34,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:34,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:34,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:34,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:34,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:34,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290648083] [2020-09-24 16:00:34,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:34,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:34,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357678224] [2020-09-24 16:00:34,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:34,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:34,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:34,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,390 INFO L87 Difference]: Start difference. First operand 1103 states and 1374 transitions. Second operand 3 states. [2020-09-24 16:00:34,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,430 INFO L93 Difference]: Finished difference Result 1315 states and 1616 transitions. [2020-09-24 16:00:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-09-24 16:00:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,449 INFO L225 Difference]: With dead ends: 1315 [2020-09-24 16:00:34,449 INFO L226 Difference]: Without dead ends: 1313 [2020-09-24 16:00:34,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2020-09-24 16:00:34,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1103. [2020-09-24 16:00:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-09-24 16:00:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1358 transitions. [2020-09-24 16:00:34,481 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1358 transitions. Word has length 54 [2020-09-24 16:00:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:34,482 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1358 transitions. [2020-09-24 16:00:34,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1358 transitions. [2020-09-24 16:00:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 16:00:34,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:34,484 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] [2020-09-24 16:00:34,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:00:34,484 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:34,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:34,485 INFO L82 PathProgramCache]: Analyzing trace with hash -116823154, now seen corresponding path program 1 times [2020-09-24 16:00:34,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:34,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184251038] [2020-09-24 16:00:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 16:00:34,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:34,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 16:00:34,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:00:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:34,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:34,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184251038] [2020-09-24 16:00:34,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:34,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:34,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009783338] [2020-09-24 16:00:34,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:34,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:34,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:34,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,543 INFO L87 Difference]: Start difference. First operand 1103 states and 1358 transitions. Second operand 3 states. [2020-09-24 16:00:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,586 INFO L93 Difference]: Finished difference Result 3153 states and 3887 transitions. [2020-09-24 16:00:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-09-24 16:00:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,593 INFO L225 Difference]: With dead ends: 3153 [2020-09-24 16:00:34,593 INFO L226 Difference]: Without dead ends: 1103 [2020-09-24 16:00:34,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-09-24 16:00:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2020-09-24 16:00:34,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-09-24 16:00:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1294 transitions. [2020-09-24 16:00:34,634 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1294 transitions. Word has length 54 [2020-09-24 16:00:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:34,635 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1294 transitions. [2020-09-24 16:00:34,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1294 transitions. [2020-09-24 16:00:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 16:00:34,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:34,637 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] [2020-09-24 16:00:34,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:00:34,637 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:34,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:34,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1056202659, now seen corresponding path program 1 times [2020-09-24 16:00:34,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:34,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208033788] [2020-09-24 16:00:34,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 16:00:34,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:34,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 16:00:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:00:34,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:34,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:34,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:34,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:34,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:34,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:34,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:34,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:34,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:34,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:34,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:00:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:34,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208033788] [2020-09-24 16:00:34,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:34,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:34,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651279457] [2020-09-24 16:00:34,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:34,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,692 INFO L87 Difference]: Start difference. First operand 1103 states and 1294 transitions. Second operand 3 states. [2020-09-24 16:00:34,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:34,713 INFO L93 Difference]: Finished difference Result 1103 states and 1294 transitions. [2020-09-24 16:00:34,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:34,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-09-24 16:00:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:34,714 INFO L225 Difference]: With dead ends: 1103 [2020-09-24 16:00:34,714 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:00:34,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:34,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:00:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:00:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:00:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:00:34,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-09-24 16:00:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:34,718 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:00:34,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:00:34,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:00:34,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:00:34,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:00:34,745 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 16:00:34,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:00:34,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:00:34,746 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 16:00:34,746 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:00:34,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:00:34,746 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 16:00:34,746 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 107) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L77-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-24 16:00:34,747 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L271 CegarLoopResult]: At program point L103(lines 5 107) the Hoare annotation is: true [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L62-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,748 INFO L268 CegarLoopResult]: For program point L87-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L54-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L46(lines 46 48) no Hoare annotation was computed. [2020-09-24 16:00:34,749 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 16:00:34,750 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 107) no Hoare annotation was computed. [2020-09-24 16:00:34,750 INFO L268 CegarLoopResult]: For program point L46-2(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,750 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 16:00:34,750 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2020-09-24 16:00:34,750 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 16:00:34,750 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 107) the Hoare annotation is: true [2020-09-24 16:00:34,750 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L72-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 16:00:34,751 INFO L271 CegarLoopResult]: At program point L97-1(lines 27 102) the Hoare annotation is: true [2020-09-24 16:00:34,751 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 16:00:34,752 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L264 CegarLoopResult]: At program point L98-1(lines 5 107) the Hoare annotation is: false [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L82-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L66-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,753 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L58-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L50-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-24 16:00:34,754 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L92-1(lines 27 102) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 16:00:34,755 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 16:00:34,756 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 16:00:34,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:00:34 BoogieIcfgContainer [2020-09-24 16:00:34,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:00:34,774 INFO L168 Benchmark]: Toolchain (without parser) took 3041.34 ms. Allocated memory was 147.3 MB in the beginning and 245.9 MB in the end (delta: 98.6 MB). Free memory was 103.8 MB in the beginning and 153.4 MB in the end (delta: -49.7 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:34,774 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:00:34,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.13 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 93.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:34,776 INFO L168 Benchmark]: Boogie Preprocessor took 129.88 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 181.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:34,777 INFO L168 Benchmark]: RCFGBuilder took 397.36 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 162.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:34,778 INFO L168 Benchmark]: TraceAbstraction took 2197.63 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 161.6 MB in the beginning and 153.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:34,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.13 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 93.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.88 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 93.1 MB in the beginning and 181.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.36 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 162.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2197.63 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 161.6 MB in the beginning and 153.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 105]: 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: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1351 SDtfs, 477 SDslu, 950 SDs, 0 SdLazy, 59 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1103occurred 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: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 509 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 73 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 624 NumberOfCodeBlocks, 624 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 39212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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...