/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options 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/eca-rers2012/Problem10_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:27:03,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:27:03,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:27:03,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:27:03,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:27:03,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:27:03,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:27:03,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:27:03,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:27:03,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:27:03,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:27:03,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:27:03,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:27:03,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:27:03,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:27:03,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:27:03,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:27:03,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:27:03,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:27:03,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:27:03,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:27:03,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:27:03,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:27:03,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:27:03,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:27:03,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:27:03,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:27:03,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:27:03,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:27:03,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-21 11:27:03,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:27:03,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:27:03,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:27:03,248 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 [2020-09-21 11:27:03,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:27:03,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:27:03,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:27:03,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:27:03,305 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:27:03,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:27:03,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:27:03,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:27:03,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:27:03,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:27:03,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:27:03,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:27:03,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:27:03,309 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:27:03,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:27:03,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:27:03,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:27:03,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:27:03,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:27:03,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:27:03,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:27:03,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:27:03,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:27:03,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:27:03,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:27:03,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:27:03,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:27:03,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:27:03,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:27:03,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> 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; [2020-09-21 11:27:03,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:27:03,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:27:03,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:27:03,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:27:03,777 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:27:03,778 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-09-21 11:27:03,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cdebc7ebe/0e6696e15a7f4609b13fc2cf9badb96e/FLAG917c215e6 [2020-09-21 11:27:04,521 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:27:04,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label07.c [2020-09-21 11:27:04,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cdebc7ebe/0e6696e15a7f4609b13fc2cf9badb96e/FLAG917c215e6 [2020-09-21 11:27:04,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cdebc7ebe/0e6696e15a7f4609b13fc2cf9badb96e [2020-09-21 11:27:04,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:27:04,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:27:04,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:04,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:27:04,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:27:04,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:04" (1/1) ... [2020-09-21 11:27:04,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c5cb56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:04, skipping insertion in model container [2020-09-21 11:27:04,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:04" (1/1) ... [2020-09-21 11:27:04,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:27:04,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:27:05,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:05,353 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:27:05,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:05,609 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:27:05,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05 WrapperNode [2020-09-21 11:27:05,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:05,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:27:05,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:27:05,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:27:05,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (1/1) ... [2020-09-21 11:27:05,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:27:05,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:27:05,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:27:05,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:27:05,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (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 [2020-09-21 11:27:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:27:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:27:05,878 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:27:05,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:27:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:27:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:27:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:27:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:27:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:27:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:27:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:27:07,247 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:27:07,247 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:27:07,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:07 BoogieIcfgContainer [2020-09-21 11:27:07,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:27:07,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:27:07,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:27:07,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:27:07,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:27:04" (1/3) ... [2020-09-21 11:27:07,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53aa1cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:07, skipping insertion in model container [2020-09-21 11:27:07,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:05" (2/3) ... [2020-09-21 11:27:07,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53aa1cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:07, skipping insertion in model container [2020-09-21 11:27:07,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:07" (3/3) ... [2020-09-21 11:27:07,277 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label07.c [2020-09-21 11:27:07,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:27:07,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:27:07,331 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:27:07,387 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:27:07,388 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:27:07,389 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:27:07,389 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:27:07,389 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:27:07,389 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:27:07,390 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:27:07,390 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:27:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 11:27:07,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:27:07,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:07,458 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] [2020-09-21 11:27:07,459 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:07,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:07,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1452048058, now seen corresponding path program 1 times [2020-09-21 11:27:07,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:07,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390896338] [2020-09-21 11:27:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:07,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:07,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:07,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:07,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:07,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-21 11:27:07,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:27:07,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:27:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:07,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:08,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:08,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:08,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:08,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:08,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:08,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:08,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:27:08,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:08,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:08,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390896338] [2020-09-21 11:27:08,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:08,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:27:08,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725425762] [2020-09-21 11:27:08,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:27:08,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:08,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:27:08,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:27:08,095 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-09-21 11:27:09,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:09,626 INFO L93 Difference]: Finished difference Result 596 states and 1022 transitions. [2020-09-21 11:27:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:09,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:27:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:09,666 INFO L225 Difference]: With dead ends: 596 [2020-09-21 11:27:09,666 INFO L226 Difference]: Without dead ends: 302 [2020-09-21 11:27:09,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:09,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-21 11:27:09,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-09-21 11:27:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-21 11:27:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-09-21 11:27:09,794 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 51 [2020-09-21 11:27:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:09,794 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-09-21 11:27:09,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:27:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-09-21 11:27:09,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:27:09,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:09,802 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:09,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:27:09,802 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:09,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1838295646, now seen corresponding path program 1 times [2020-09-21 11:27:09,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:09,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711169893] [2020-09-21 11:27:09,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:27:09,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -75 [2020-09-21 11:27:09,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 75 [2020-09-21 11:27:09,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:27:09,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:27:09,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:09,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:27:09,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:10,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:10,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:10,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:10,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:10,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:10,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:10,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:10,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:10,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:10,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:10,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:10,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:27:10,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:10,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:10,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:10,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:10,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:10,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:10,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:27:10,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:10,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:10,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:27:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:27:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 43 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:10,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711169893] [2020-09-21 11:27:10,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:10,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:10,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333399350] [2020-09-21 11:27:10,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:10,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:10,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:10,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:10,277 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 5 states. [2020-09-21 11:27:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:11,612 INFO L93 Difference]: Finished difference Result 882 states and 1362 transitions. [2020-09-21 11:27:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:11,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-09-21 11:27:11,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:11,618 INFO L225 Difference]: With dead ends: 882 [2020-09-21 11:27:11,619 INFO L226 Difference]: Without dead ends: 592 [2020-09-21 11:27:11,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-09-21 11:27:11,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2020-09-21 11:27:11,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-21 11:27:11,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 848 transitions. [2020-09-21 11:27:11,662 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 848 transitions. Word has length 121 [2020-09-21 11:27:11,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:11,663 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 848 transitions. [2020-09-21 11:27:11,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:11,663 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 848 transitions. [2020-09-21 11:27:11,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 11:27:11,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:11,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:11,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:27:11,668 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:11,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:11,669 INFO L82 PathProgramCache]: Analyzing trace with hash 270140045, now seen corresponding path program 1 times [2020-09-21 11:27:11,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:11,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791681498] [2020-09-21 11:27:11,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:11,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:11,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:11,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:11,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:11,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:27:11,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:11,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:27:11,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:27:11,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:11,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:11,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:11,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:11,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:11,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:11,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:11,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:11,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:11,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:11,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:11,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:11,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:11,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-21 11:27:11,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:11,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:27:11,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:11,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:11,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:11,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 11:27:11,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:12,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791681498] [2020-09-21 11:27:12,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:12,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:12,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396007742] [2020-09-21 11:27:12,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:12,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:12,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:12,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:12,019 INFO L87 Difference]: Start difference. First operand 586 states and 848 transitions. Second operand 8 states. [2020-09-21 11:27:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:14,369 INFO L93 Difference]: Finished difference Result 2376 states and 3633 transitions. [2020-09-21 11:27:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:27:14,371 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-21 11:27:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:14,395 INFO L225 Difference]: With dead ends: 2376 [2020-09-21 11:27:14,396 INFO L226 Difference]: Without dead ends: 1796 [2020-09-21 11:27:14,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:27:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2020-09-21 11:27:14,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1486. [2020-09-21 11:27:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-09-21 11:27:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2081 transitions. [2020-09-21 11:27:14,518 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2081 transitions. Word has length 132 [2020-09-21 11:27:14,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:14,519 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 2081 transitions. [2020-09-21 11:27:14,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2081 transitions. [2020-09-21 11:27:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-21 11:27:14,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:14,533 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:14,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:27:14,538 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:14,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:14,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1774318506, now seen corresponding path program 1 times [2020-09-21 11:27:14,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:14,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415825178] [2020-09-21 11:27:14,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:14,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:14,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:14,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:14,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:14,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-21 11:27:14,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:14,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-21 11:27:14,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:27:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:14,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:14,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:14,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:14,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:14,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:14,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:14,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:14,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:14,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:14,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:14,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:14,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:14,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:14,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:27:14,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:27:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:14,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:27:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:14,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:14,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:14,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:14,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:14,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:14,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:14,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:27:14,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:14,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:27:14,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:15,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415825178] [2020-09-21 11:27:15,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:15,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:15,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268459759] [2020-09-21 11:27:15,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:15,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:15,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:15,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:15,186 INFO L87 Difference]: Start difference. First operand 1486 states and 2081 transitions. Second operand 7 states. [2020-09-21 11:27:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:16,771 INFO L93 Difference]: Finished difference Result 3572 states and 5089 transitions. [2020-09-21 11:27:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:16,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-21 11:27:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:16,790 INFO L225 Difference]: With dead ends: 3572 [2020-09-21 11:27:16,790 INFO L226 Difference]: Without dead ends: 2092 [2020-09-21 11:27:16,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:27:16,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2020-09-21 11:27:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1931. [2020-09-21 11:27:16,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-09-21 11:27:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2614 transitions. [2020-09-21 11:27:16,877 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2614 transitions. Word has length 203 [2020-09-21 11:27:16,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:16,878 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2614 transitions. [2020-09-21 11:27:16,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2614 transitions. [2020-09-21 11:27:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-21 11:27:16,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:16,883 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:16,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:27:16,884 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash 18810810, now seen corresponding path program 1 times [2020-09-21 11:27:16,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:16,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055346826] [2020-09-21 11:27:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:16,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:27:16,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -84 [2020-09-21 11:27:16,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 84 [2020-09-21 11:27:16,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:16,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-21 11:27:16,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:16,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:27:16,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:16,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:16,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:27:16,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:27:16,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:17,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:17,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:17,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:17,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:17,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:17,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:27:17,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:27:17,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:27:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:17,159 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,159 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:27:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:27:17,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:17,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:17,326 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:17,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055346826] [2020-09-21 11:27:17,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:17,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:17,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417850579] [2020-09-21 11:27:17,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:17,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:17,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:17,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:17,329 INFO L87 Difference]: Start difference. First operand 1931 states and 2614 transitions. Second operand 7 states. [2020-09-21 11:27:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:18,481 INFO L93 Difference]: Finished difference Result 3935 states and 5490 transitions. [2020-09-21 11:27:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:18,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-21 11:27:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:18,496 INFO L225 Difference]: With dead ends: 3935 [2020-09-21 11:27:18,496 INFO L226 Difference]: Without dead ends: 1987 [2020-09-21 11:27:18,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:27:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2020-09-21 11:27:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1943. [2020-09-21 11:27:18,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1943 states. [2020-09-21 11:27:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1943 states to 1943 states and 2616 transitions. [2020-09-21 11:27:18,578 INFO L78 Accepts]: Start accepts. Automaton has 1943 states and 2616 transitions. Word has length 203 [2020-09-21 11:27:18,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:18,579 INFO L479 AbstractCegarLoop]: Abstraction has 1943 states and 2616 transitions. [2020-09-21 11:27:18,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:18,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states and 2616 transitions. [2020-09-21 11:27:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-21 11:27:18,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:18,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:18,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:27:18,583 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:18,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1715918023, now seen corresponding path program 1 times [2020-09-21 11:27:18,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:18,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924161899] [2020-09-21 11:27:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:18,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:18,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:18,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:18,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:18,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-21 11:27:18,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:27:18,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:27:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:18,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:18,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:18,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:18,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:18,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:18,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:18,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:18,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:18,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:18,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:18,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:18,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:18,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:18,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:18,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:18,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:18,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 11:27:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:27:18,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:27:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:27:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:18,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:18,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:18,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:18,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:18,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:18,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:18,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 88 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:27:18,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924161899] [2020-09-21 11:27:18,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:18,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:18,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010985883] [2020-09-21 11:27:18,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:18,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:18,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:18,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:18,974 INFO L87 Difference]: Start difference. First operand 1943 states and 2616 transitions. Second operand 7 states. [2020-09-21 11:27:20,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:20,724 INFO L93 Difference]: Finished difference Result 4043 states and 5447 transitions. [2020-09-21 11:27:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:27:20,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 210 [2020-09-21 11:27:20,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:20,737 INFO L225 Difference]: With dead ends: 4043 [2020-09-21 11:27:20,738 INFO L226 Difference]: Without dead ends: 2106 [2020-09-21 11:27:20,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:27:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2020-09-21 11:27:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2088. [2020-09-21 11:27:20,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2020-09-21 11:27:20,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2775 transitions. [2020-09-21 11:27:20,854 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2775 transitions. Word has length 210 [2020-09-21 11:27:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:20,855 INFO L479 AbstractCegarLoop]: Abstraction has 2088 states and 2775 transitions. [2020-09-21 11:27:20,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2775 transitions. [2020-09-21 11:27:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-21 11:27:20,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:20,860 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:20,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:27:20,860 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:20,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1566169957, now seen corresponding path program 1 times [2020-09-21 11:27:20,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:20,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879132169] [2020-09-21 11:27:20,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:20,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:20,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:20,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:20,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:20,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-21 11:27:20,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:27:20,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:27:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:21,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:21,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:21,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:21,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:21,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:21,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:21,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:21,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:27:21,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:21,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:21,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:27:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:21,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879132169] [2020-09-21 11:27:21,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:21,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:21,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246742712] [2020-09-21 11:27:21,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:21,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:21,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:21,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:21,311 INFO L87 Difference]: Start difference. First operand 2088 states and 2775 transitions. Second operand 7 states. [2020-09-21 11:27:25,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:25,132 INFO L93 Difference]: Finished difference Result 4037 states and 5423 transitions. [2020-09-21 11:27:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:25,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2020-09-21 11:27:25,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:25,144 INFO L225 Difference]: With dead ends: 4037 [2020-09-21 11:27:25,144 INFO L226 Difference]: Without dead ends: 2098 [2020-09-21 11:27:25,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:27:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-09-21 11:27:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1796. [2020-09-21 11:27:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1796 states. [2020-09-21 11:27:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2184 transitions. [2020-09-21 11:27:25,200 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2184 transitions. Word has length 248 [2020-09-21 11:27:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:25,200 INFO L479 AbstractCegarLoop]: Abstraction has 1796 states and 2184 transitions. [2020-09-21 11:27:25,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2184 transitions. [2020-09-21 11:27:25,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-21 11:27:25,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:25,207 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:25,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:27:25,208 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:25,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:25,208 INFO L82 PathProgramCache]: Analyzing trace with hash 492877617, now seen corresponding path program 1 times [2020-09-21 11:27:25,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:25,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016799189] [2020-09-21 11:27:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-09-21 11:27:25,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:27:25,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 264 [2020-09-21 11:27:25,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:27:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:25,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:25,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:25,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:25,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:25,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:27:25,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:25,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 11:27:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-21 11:27:25,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016799189] [2020-09-21 11:27:25,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:25,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:25,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46706090] [2020-09-21 11:27:25,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:25,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:25,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:25,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:25,661 INFO L87 Difference]: Start difference. First operand 1796 states and 2184 transitions. Second operand 5 states. [2020-09-21 11:27:27,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:27,086 INFO L93 Difference]: Finished difference Result 4023 states and 4929 transitions. [2020-09-21 11:27:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:27,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-09-21 11:27:27,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:27,098 INFO L225 Difference]: With dead ends: 4023 [2020-09-21 11:27:27,098 INFO L226 Difference]: Without dead ends: 1643 [2020-09-21 11:27:27,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:27,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2020-09-21 11:27:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1347. [2020-09-21 11:27:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1347 states. [2020-09-21 11:27:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1554 transitions. [2020-09-21 11:27:27,139 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1554 transitions. Word has length 302 [2020-09-21 11:27:27,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:27,140 INFO L479 AbstractCegarLoop]: Abstraction has 1347 states and 1554 transitions. [2020-09-21 11:27:27,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1554 transitions. [2020-09-21 11:27:27,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-09-21 11:27:27,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:27,147 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:27,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:27:27,148 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:27,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:27,148 INFO L82 PathProgramCache]: Analyzing trace with hash 775353937, now seen corresponding path program 1 times [2020-09-21 11:27:27,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:27,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709169656] [2020-09-21 11:27:27,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:27:27,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -120 [2020-09-21 11:27:27,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 120 [2020-09-21 11:27:27,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-09-21 11:27:27,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-21 11:27:27,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-09-21 11:27:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:27,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:27,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:27,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:27,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:27:27,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:27:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:27:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-21 11:27:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-21 11:27:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:27:27,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:27:27,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-21 11:27:27,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 313 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 11:27:27,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709169656] [2020-09-21 11:27:27,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:27,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:27:27,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007243580] [2020-09-21 11:27:27,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:27,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:27,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:27,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:27,956 INFO L87 Difference]: Start difference. First operand 1347 states and 1554 transitions. Second operand 8 states. [2020-09-21 11:27:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:29,802 INFO L93 Difference]: Finished difference Result 3161 states and 3711 transitions. [2020-09-21 11:27:29,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:27:29,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 358 [2020-09-21 11:27:29,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:29,812 INFO L225 Difference]: With dead ends: 3161 [2020-09-21 11:27:29,812 INFO L226 Difference]: Without dead ends: 1963 [2020-09-21 11:27:29,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:27:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2020-09-21 11:27:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1951. [2020-09-21 11:27:29,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1951 states. [2020-09-21 11:27:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2235 transitions. [2020-09-21 11:27:29,868 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2235 transitions. Word has length 358 [2020-09-21 11:27:29,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:29,869 INFO L479 AbstractCegarLoop]: Abstraction has 1951 states and 2235 transitions. [2020-09-21 11:27:29,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:29,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2235 transitions. [2020-09-21 11:27:29,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-09-21 11:27:29,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:29,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:29,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:27:29,882 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:29,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:29,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1054951557, now seen corresponding path program 1 times [2020-09-21 11:27:29,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:29,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680801040] [2020-09-21 11:27:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-09-21 11:27:30,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:27:30,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 326 [2020-09-21 11:27:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:27:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:30,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,208 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:30,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:30,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:30,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:30,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:30,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 11:27:30,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:30,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-21 11:27:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-21 11:27:30,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:27:30,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:30,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:30,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-21 11:27:30,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 135 proven. 3 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-09-21 11:27:30,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680801040] [2020-09-21 11:27:30,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:30,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:30,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385447726] [2020-09-21 11:27:30,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:30,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:30,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:30,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:30,450 INFO L87 Difference]: Start difference. First operand 1951 states and 2235 transitions. Second operand 5 states. [2020-09-21 11:27:31,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:31,825 INFO L93 Difference]: Finished difference Result 4045 states and 4745 transitions. [2020-09-21 11:27:31,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:31,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 362 [2020-09-21 11:27:31,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:31,843 INFO L225 Difference]: With dead ends: 4045 [2020-09-21 11:27:31,843 INFO L226 Difference]: Without dead ends: 2243 [2020-09-21 11:27:31,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:31,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2020-09-21 11:27:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2096. [2020-09-21 11:27:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-09-21 11:27:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2404 transitions. [2020-09-21 11:27:31,905 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2404 transitions. Word has length 362 [2020-09-21 11:27:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:31,906 INFO L479 AbstractCegarLoop]: Abstraction has 2096 states and 2404 transitions. [2020-09-21 11:27:31,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2404 transitions. [2020-09-21 11:27:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-09-21 11:27:31,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:31,916 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:31,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:27:31,917 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:31,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:31,917 INFO L82 PathProgramCache]: Analyzing trace with hash 549515818, now seen corresponding path program 1 times [2020-09-21 11:27:31,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:31,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863933176] [2020-09-21 11:27:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 386 [2020-09-21 11:27:32,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:27:32,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 335 [2020-09-21 11:27:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:27:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:32,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:32,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:32,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-21 11:27:32,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:32,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-21 11:27:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:27:32,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:27:32,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:32,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 11:27:32,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 135 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-09-21 11:27:32,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863933176] [2020-09-21 11:27:32,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:32,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:32,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722815639] [2020-09-21 11:27:32,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:32,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:32,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:32,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:32,493 INFO L87 Difference]: Start difference. First operand 2096 states and 2404 transitions. Second operand 5 states. [2020-09-21 11:27:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:33,855 INFO L93 Difference]: Finished difference Result 4331 states and 5001 transitions. [2020-09-21 11:27:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:33,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 371 [2020-09-21 11:27:33,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:33,864 INFO L225 Difference]: With dead ends: 4331 [2020-09-21 11:27:33,864 INFO L226 Difference]: Without dead ends: 1947 [2020-09-21 11:27:33,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:33,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2020-09-21 11:27:33,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1945. [2020-09-21 11:27:33,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2020-09-21 11:27:33,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2228 transitions. [2020-09-21 11:27:33,920 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2228 transitions. Word has length 371 [2020-09-21 11:27:33,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:33,921 INFO L479 AbstractCegarLoop]: Abstraction has 1945 states and 2228 transitions. [2020-09-21 11:27:33,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2228 transitions. [2020-09-21 11:27:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-09-21 11:27:33,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:33,931 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:33,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:27:33,932 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:33,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1284495135, now seen corresponding path program 1 times [2020-09-21 11:27:33,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:33,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138771562] [2020-09-21 11:27:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:34,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:34,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:34,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:34,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:34,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-09-21 11:27:34,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:34,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:27:34,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:34,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 340 [2020-09-21 11:27:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:27:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:34,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:34,194 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:34,195 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:34,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:34,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:34,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:34,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:34,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:34,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:34,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:34,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:34,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:34,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:34,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:34,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:34,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:34,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:34,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:34,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:34,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:34,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:34,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-21 11:27:34,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:34,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:34,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:34,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:34,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-21 11:27:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:34,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:34,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:34,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:34,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:34,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 11:27:34,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:34,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:34,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-21 11:27:34,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 135 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-09-21 11:27:34,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138771562] [2020-09-21 11:27:34,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:34,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:34,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249260160] [2020-09-21 11:27:34,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:34,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:34,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:34,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:34,457 INFO L87 Difference]: Start difference. First operand 1945 states and 2228 transitions. Second operand 5 states. [2020-09-21 11:27:35,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:35,824 INFO L93 Difference]: Finished difference Result 3741 states and 4305 transitions. [2020-09-21 11:27:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:35,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 376 [2020-09-21 11:27:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:35,831 INFO L225 Difference]: With dead ends: 3741 [2020-09-21 11:27:35,831 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:27:35,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:27:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:27:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:27:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:27:35,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 376 [2020-09-21 11:27:35,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:35,839 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:27:35,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:27:35,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:27:35,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:27:35,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:27:36,652 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 107 [2020-09-21 11:27:36,844 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 107 [2020-09-21 11:27:37,500 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 48 [2020-09-21 11:27:37,941 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 37 [2020-09-21 11:27:38,344 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 37 [2020-09-21 11:27:38,348 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:38,351 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 11:27:38,351 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:38,351 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 11:27:38,351 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,351 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,351 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,351 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 11:27:38,352 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 11:27:38,354 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 11:27:38,354 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 11:27:38,354 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 11:27:38,354 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 11:27:38,355 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 11:27:38,356 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 11:27:38,357 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 11:27:38,357 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 11:27:38,357 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-09-21 11:27:38,357 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 11:27:38,357 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,357 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,358 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,358 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,358 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,358 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 11:27:38,359 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 11:27:38,360 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 11:27:38,360 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,360 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,360 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,362 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,362 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,362 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 11:27:38,362 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 11:27:38,362 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 11:27:38,363 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 11:27:38,364 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,365 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 11:27:38,366 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 11:27:38,367 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 11:27:38,367 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 11:27:38,367 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 11:27:38,367 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 11:27:38,367 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 11:27:38,368 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 11:27:38,369 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 11:27:38,370 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 11:27:38,371 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 11:27:38,371 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 11:27:38,371 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,372 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 11:27:38,373 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (= 2 |old(~a10~0)|))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (= 4 |old(~a10~0)|))) (or .cse0 .cse1 (not (= 7 |old(~a19~0)|))) (or .cse0 (not (= 8 |old(~a19~0)|))) (or .cse0 (not (= |old(~a10~0)| 1))) (or (not (<= |old(~a10~0)| 0)) .cse0) (or (and (or (not (= 9 |old(~a19~0)|)) .cse1) (or (not (<= 23 |old(~a1~0)|)) .cse1)) .cse0) (or (not (= 3 |old(~a10~0)|)) .cse0))) [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,374 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 11:27:38,375 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 11:27:38,376 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 11:27:38,377 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 11:27:38,378 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 11:27:38,379 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 11:27:38,380 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:38,381 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 11:27:38,381 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:27:38,381 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:38,381 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23))) [2020-09-21 11:27:38,381 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:27:38,381 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= ~a10~0 2))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (= ~a10~0 1) (and (= 7 ~a19~0) .cse0) (and .cse0 (= ~a19~0 9)) (= ~a10~0 3) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (<= 23 ~a1~0) .cse0) (= ~a10~0 4))) [2020-09-21 11:27:38,381 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 11:27:38,382 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 11:27:38,382 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (= ~a10~0 2))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (= ~a10~0 1) (and (= 7 ~a19~0) .cse0) (and .cse0 (= ~a19~0 9)) (= ~a10~0 3) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (<= 23 ~a1~0) .cse0) (= ~a10~0 4))) [2020-09-21 11:27:38,382 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:27:38,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:27:38 BoogieIcfgContainer [2020-09-21 11:27:38,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:27:38,424 INFO L168 Benchmark]: Toolchain (without parser) took 33639.60 ms. Allocated memory was 141.0 MB in the beginning and 677.9 MB in the end (delta: 536.9 MB). Free memory was 102.0 MB in the beginning and 380.4 MB in the end (delta: -278.4 MB). Peak memory consumption was 488.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:38,428 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:27:38,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.61 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 172.3 MB in the end (delta: -71.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:38,430 INFO L168 Benchmark]: Boogie Preprocessor took 181.38 ms. Allocated memory is still 206.0 MB. Free memory was 172.3 MB in the beginning and 167.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:38,432 INFO L168 Benchmark]: RCFGBuilder took 1466.32 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.5 MB in the beginning and 179.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:38,439 INFO L168 Benchmark]: TraceAbstraction took 31154.41 ms. Allocated memory was 237.0 MB in the beginning and 677.9 MB in the end (delta: 440.9 MB). Free memory was 177.7 MB in the beginning and 380.4 MB in the end (delta: -202.7 MB). Peak memory consumption was 468.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:38,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 821.61 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 172.3 MB in the end (delta: -71.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.38 ms. Allocated memory is still 206.0 MB. Free memory was 172.3 MB in the beginning and 167.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1466.32 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.5 MB in the beginning and 179.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31154.41 ms. Allocated memory was 237.0 MB in the beginning and 677.9 MB in the end (delta: 440.9 MB). Free memory was 177.7 MB in the beginning and 380.4 MB in the end (delta: -202.7 MB). Peak memory consumption was 468.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((((a19 == 8 || !(23 <= \old(a1))) || a10 <= 0) || !(\old(a10) <= 0)) || a10 == 1) || (7 == a19 && a10 == 2)) || (a10 == 2 && a19 == 9)) || a10 == 3) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || (23 <= a1 && a10 == 2)) || a10 == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.4s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 318 SDtfs, 4319 SDslu, 346 SDs, 0 SdLazy, 9885 SolverSat, 1221 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2096occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1304 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 140 PreInvPairs, 184 NumberOfFragments, 306 HoareAnnotationTreeSize, 140 FomulaSimplifications, 42439 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4550 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2937 NumberOfCodeBlocks, 2937 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2925 ConstructedInterpolants, 0 QuantifiedInterpolants, 1601656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 2410/2571 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...