/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:21:52,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:21:52,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:21:52,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:21:52,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:21:52,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:21:52,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:21:52,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:21:52,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:21:52,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:21:52,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:21:52,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:21:52,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:21:52,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:21:52,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:21:52,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:21:52,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:21:52,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:21:52,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:21:52,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:21:52,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:21:52,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:21:52,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:21:52,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:21:52,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:21:52,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:21:52,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:21:52,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:21:52,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:21:52,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:21:52,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:21:52,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:21:52,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:21:52,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:21:52,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:21:52,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:21:52,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:21:52,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:21:52,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:21:52,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:21:52,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:21:52,208 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 [2020-10-13 08:21:52,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:21:52,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:21:52,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:21:52,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:21:52,258 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:21:52,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:21:52,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:21:52,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:21:52,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:21:52,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:21:52,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:21:52,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:21:52,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:21:52,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:21:52,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:21:52,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:21:52,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:21:52,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:21:52,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:21:52,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:21:52,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:21:52,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:21:52,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:21:52,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:21:52,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:21:52,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:21:52,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:21:52,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:21:52,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:21:52,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements 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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:21:52,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:21:52,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:21:52,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:21:52,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:21:52,594 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:21:52,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label34.c [2020-10-13 08:21:52,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d5a83bac/629b0bc029864a699cd2c360ca4fd4b8/FLAG1ce7006e3 [2020-10-13 08:21:53,418 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:21:53,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label34.c [2020-10-13 08:21:53,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d5a83bac/629b0bc029864a699cd2c360ca4fd4b8/FLAG1ce7006e3 [2020-10-13 08:21:53,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d5a83bac/629b0bc029864a699cd2c360ca4fd4b8 [2020-10-13 08:21:53,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:21:53,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:21:53,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:21:53,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:21:53,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:21:53,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:21:53" (1/1) ... [2020-10-13 08:21:53,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aae5b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:53, skipping insertion in model container [2020-10-13 08:21:53,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:21:53" (1/1) ... [2020-10-13 08:21:53,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:21:53,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:21:55,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:21:55,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:21:56,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:21:56,072 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:21:56,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56 WrapperNode [2020-10-13 08:21:56,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:21:56,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:21:56,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:21:56,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:21:56,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (1/1) ... [2020-10-13 08:21:56,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:21:56,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:21:56,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:21:56,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:21:56,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (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 [2020-10-13 08:21:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:21:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:21:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:21:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 08:21:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 08:21:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 08:21:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:21:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:21:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 08:21:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 08:21:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 08:21:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:21:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:21:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:21:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:21:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:21:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:22:01,297 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:22:01,297 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:22:01,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:01 BoogieIcfgContainer [2020-10-13 08:22:01,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:22:01,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:22:01,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:22:01,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:22:01,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:21:53" (1/3) ... [2020-10-13 08:22:01,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d574086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:01, skipping insertion in model container [2020-10-13 08:22:01,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:56" (2/3) ... [2020-10-13 08:22:01,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d574086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:01, skipping insertion in model container [2020-10-13 08:22:01,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:01" (3/3) ... [2020-10-13 08:22:01,316 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label34.c [2020-10-13 08:22:01,327 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:22:01,335 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:22:01,349 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:22:01,376 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:22:01,376 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:22:01,376 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:22:01,376 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:22:01,376 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:22:01,376 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:22:01,377 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:22:01,377 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:22:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2020-10-13 08:22:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-13 08:22:01,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:22:01,417 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] [2020-10-13 08:22:01,418 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:22:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:22:01,424 INFO L82 PathProgramCache]: Analyzing trace with hash 522040021, now seen corresponding path program 1 times [2020-10-13 08:22:01,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:22:01,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339054959] [2020-10-13 08:22:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:22:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:01,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:01,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:01,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 08:22:01,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-13 08:22:01,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:22:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:22:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 08:22:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:22:01,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:22:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:01,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:02,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:02,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:22:02,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:02,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:22:02,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:22:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:22:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:02,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:22:02,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339054959] [2020-10-13 08:22:02,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:22:02,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 08:22:02,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157188328] [2020-10-13 08:22:02,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:22:02,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:22:02,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:22:02,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:22:02,048 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 5 states. [2020-10-13 08:22:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:22:11,355 INFO L93 Difference]: Finished difference Result 2471 states and 4736 transitions. [2020-10-13 08:22:11,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:22:11,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-13 08:22:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:22:11,398 INFO L225 Difference]: With dead ends: 2471 [2020-10-13 08:22:11,398 INFO L226 Difference]: Without dead ends: 1568 [2020-10-13 08:22:11,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:22:11,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-13 08:22:11,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1553. [2020-10-13 08:22:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-10-13 08:22:11,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2833 transitions. [2020-10-13 08:22:11,591 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2833 transitions. Word has length 22 [2020-10-13 08:22:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:22:11,592 INFO L479 AbstractCegarLoop]: Abstraction has 1553 states and 2833 transitions. [2020-10-13 08:22:11,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:22:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2833 transitions. [2020-10-13 08:22:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 08:22:11,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:22:11,597 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:22:11,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:22:11,598 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:22:11,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:22:11,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2030687649, now seen corresponding path program 1 times [2020-10-13 08:22:11,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:22:11,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532755032] [2020-10-13 08:22:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:22:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:11,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:11,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:12,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:12,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:22:12,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:22:12,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-10-13 08:22:12,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:22:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:22:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:22:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:22:12,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:22:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:12,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:12,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:22:12,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:22:12,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:22:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:22:12,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:12,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:22:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:12,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:12,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:12,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:22:12,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:22:12,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:22:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:22:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:22:12,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532755032] [2020-10-13 08:22:12,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:22:12,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:22:12,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843552779] [2020-10-13 08:22:12,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:22:12,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:22:12,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:22:12,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:22:12,751 INFO L87 Difference]: Start difference. First operand 1553 states and 2833 transitions. Second operand 5 states. [2020-10-13 08:22:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:22:21,005 INFO L93 Difference]: Finished difference Result 4676 states and 8590 transitions. [2020-10-13 08:22:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:22:21,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2020-10-13 08:22:21,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:22:21,038 INFO L225 Difference]: With dead ends: 4676 [2020-10-13 08:22:21,039 INFO L226 Difference]: Without dead ends: 3129 [2020-10-13 08:22:21,044 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 [2020-10-13 08:22:21,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2020-10-13 08:22:21,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3114. [2020-10-13 08:22:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3114 states. [2020-10-13 08:22:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 5325 transitions. [2020-10-13 08:22:21,187 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 5325 transitions. Word has length 95 [2020-10-13 08:22:21,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:22:21,188 INFO L479 AbstractCegarLoop]: Abstraction has 3114 states and 5325 transitions. [2020-10-13 08:22:21,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:22:21,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 5325 transitions. [2020-10-13 08:22:21,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 08:22:21,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:22:21,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:22:21,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:22:21,191 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:22:21,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:22:21,191 INFO L82 PathProgramCache]: Analyzing trace with hash -635841667, now seen corresponding path program 1 times [2020-10-13 08:22:21,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:22:21,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390991040] [2020-10-13 08:22:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:22:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:21,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:21,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:21,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 08:22:21,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:22:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-10-13 08:22:21,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:22:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-13 08:22:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:22:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:22:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:22:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:21,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:21,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:21,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:22:21,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:22:21,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:22:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:22:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:21,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:22:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:21,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:22,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:22,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 08:22:22,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:22,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:22:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:22:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 08:22:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:22:22,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390991040] [2020-10-13 08:22:22,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:22:22,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:22:22,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872649504] [2020-10-13 08:22:22,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:22:22,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:22:22,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:22:22,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:22:22,109 INFO L87 Difference]: Start difference. First operand 3114 states and 5325 transitions. Second operand 5 states. [2020-10-13 08:22:32,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:22:32,375 INFO L93 Difference]: Finished difference Result 9347 states and 16205 transitions. [2020-10-13 08:22:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:22:32,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-10-13 08:22:32,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:22:32,409 INFO L225 Difference]: With dead ends: 9347 [2020-10-13 08:22:32,410 INFO L226 Difference]: Without dead ends: 6239 [2020-10-13 08:22:32,418 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 [2020-10-13 08:22:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2020-10-13 08:22:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 6222. [2020-10-13 08:22:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6222 states. [2020-10-13 08:22:32,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 9394 transitions. [2020-10-13 08:22:32,564 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 9394 transitions. Word has length 97 [2020-10-13 08:22:32,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:22:32,564 INFO L479 AbstractCegarLoop]: Abstraction has 6222 states and 9394 transitions. [2020-10-13 08:22:32,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:22:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 9394 transitions. [2020-10-13 08:22:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 08:22:32,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:22:32,569 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:22:32,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:22:32,569 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:22:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:22:32,570 INFO L82 PathProgramCache]: Analyzing trace with hash 559193189, now seen corresponding path program 1 times [2020-10-13 08:22:32,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:22:32,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769598426] [2020-10-13 08:22:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:22:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:33,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:33,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:33,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-13 08:22:33,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:22:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1100 [2020-10-13 08:22:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:22:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-13 08:22:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:22:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:33,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:22:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:33,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:33,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:33,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:22:33,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:33,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:22:33,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:22:33,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:33,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:22:33,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:22:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:33,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:33,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:22:33,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 08:22:33,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:22:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:22:33,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:22:34,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769598426] [2020-10-13 08:22:34,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:22:34,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:22:34,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116369778] [2020-10-13 08:22:34,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:22:34,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:22:34,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:22:34,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:22:34,045 INFO L87 Difference]: Start difference. First operand 6222 states and 9394 transitions. Second operand 5 states. [2020-10-13 08:22:44,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:22:44,518 INFO L93 Difference]: Finished difference Result 18668 states and 28783 transitions. [2020-10-13 08:22:44,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:22:44,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-13 08:22:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:22:44,573 INFO L225 Difference]: With dead ends: 18668 [2020-10-13 08:22:44,573 INFO L226 Difference]: Without dead ends: 12452 [2020-10-13 08:22:44,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:22:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12452 states. [2020-10-13 08:22:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12452 to 12440. [2020-10-13 08:22:44,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12440 states. [2020-10-13 08:22:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12440 states to 12440 states and 17541 transitions. [2020-10-13 08:22:44,890 INFO L78 Accepts]: Start accepts. Automaton has 12440 states and 17541 transitions. Word has length 141 [2020-10-13 08:22:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:22:44,891 INFO L479 AbstractCegarLoop]: Abstraction has 12440 states and 17541 transitions. [2020-10-13 08:22:44,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:22:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 12440 states and 17541 transitions. [2020-10-13 08:22:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 08:22:44,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:22:44,903 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:22:44,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:22:44,903 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:22:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:22:44,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2128088409, now seen corresponding path program 1 times [2020-10-13 08:22:44,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:22:44,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516186444] [2020-10-13 08:22:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:22:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:44,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:49,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:49,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 08:22:49,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:22:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4416 [2020-10-13 08:22:49,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:22:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 300 [2020-10-13 08:22:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 08:22:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:22:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:49,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:49,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:22:49,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:22:49,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:22:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:22:49,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:22:49,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:22:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:49,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:49,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:22:49,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:22:49,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:22:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:49,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:22:49,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:22:49,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:22:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:49,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:49,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:22:49,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 08:22:49,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:22:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-13 08:22:49,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:22:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:22:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:22:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-13 08:22:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:22:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:22:50,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516186444] [2020-10-13 08:22:50,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:22:50,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:22:50,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742850544] [2020-10-13 08:22:50,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:22:50,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:22:50,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:22:50,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:22:50,140 INFO L87 Difference]: Start difference. First operand 12440 states and 17541 transitions. Second operand 5 states. [2020-10-13 08:22:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:22:57,345 INFO L93 Difference]: Finished difference Result 24902 states and 35175 transitions. [2020-10-13 08:22:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:22:57,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-13 08:22:57,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:22:57,396 INFO L225 Difference]: With dead ends: 24902 [2020-10-13 08:22:57,396 INFO L226 Difference]: Without dead ends: 12452 [2020-10-13 08:22:57,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:22:57,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12452 states. [2020-10-13 08:22:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12452 to 12440. [2020-10-13 08:22:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12440 states. [2020-10-13 08:22:57,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12440 states to 12440 states and 17537 transitions. [2020-10-13 08:22:57,689 INFO L78 Accepts]: Start accepts. Automaton has 12440 states and 17537 transitions. Word has length 310 [2020-10-13 08:22:57,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:22:57,690 INFO L479 AbstractCegarLoop]: Abstraction has 12440 states and 17537 transitions. [2020-10-13 08:22:57,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:22:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 12440 states and 17537 transitions. [2020-10-13 08:22:57,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2020-10-13 08:22:57,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:22:57,717 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:22:57,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:22:57,717 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:22:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:22:57,718 INFO L82 PathProgramCache]: Analyzing trace with hash -467646957, now seen corresponding path program 1 times [2020-10-13 08:22:57,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:22:57,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052148828] [2020-10-13 08:22:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:22:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:22:57,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:58,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:22:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:02,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:02,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 530 [2020-10-13 08:23:02,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:23:02,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-13 08:23:02,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:23:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 505 [2020-10-13 08:23:02,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 08:23:02,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:23:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:23:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:03,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:03,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:23:03,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:23:03,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:23:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:03,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:03,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 08:23:03,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:23:03,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 08:23:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:03,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:03,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:03,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 426 [2020-10-13 08:23:03,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:03,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-13 08:23:03,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:23:03,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:03,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 417 [2020-10-13 08:23:03,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:04,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:23:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:04,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:04,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 08:23:04,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 08:23:04,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:23:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-13 08:23:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:23:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-13 08:23:05,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052148828] [2020-10-13 08:23:05,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:23:05,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:23:05,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514822612] [2020-10-13 08:23:05,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:23:05,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:23:05,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:23:05,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:23:05,017 INFO L87 Difference]: Start difference. First operand 12440 states and 17537 transitions. Second operand 5 states. [2020-10-13 08:23:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:23:15,106 INFO L93 Difference]: Finished difference Result 35752 states and 51598 transitions. [2020-10-13 08:23:15,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:23:15,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 516 [2020-10-13 08:23:15,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:23:15,212 INFO L225 Difference]: With dead ends: 35752 [2020-10-13 08:23:15,213 INFO L226 Difference]: Without dead ends: 23318 [2020-10-13 08:23:15,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:23:15,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23318 states. [2020-10-13 08:23:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23318 to 23310. [2020-10-13 08:23:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23310 states. [2020-10-13 08:23:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23310 states to 23310 states and 32002 transitions. [2020-10-13 08:23:15,768 INFO L78 Accepts]: Start accepts. Automaton has 23310 states and 32002 transitions. Word has length 516 [2020-10-13 08:23:15,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:23:15,769 INFO L479 AbstractCegarLoop]: Abstraction has 23310 states and 32002 transitions. [2020-10-13 08:23:15,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:23:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 23310 states and 32002 transitions. [2020-10-13 08:23:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-10-13 08:23:15,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:23:15,828 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:23:15,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:23:15,830 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:23:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:23:15,831 INFO L82 PathProgramCache]: Analyzing trace with hash -975591424, now seen corresponding path program 1 times [2020-10-13 08:23:15,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:23:15,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260634510] [2020-10-13 08:23:15,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:23:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:15,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:16,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:17,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:20,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:20,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 619 [2020-10-13 08:23:20,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:23:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 08:23:20,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:23:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:23:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 08:23:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:23:21,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:23:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:21,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:21,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:21,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:23:21,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:21,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 08:23:21,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:21,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:23:21,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:23:21,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:23:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:23:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:21,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:21,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 08:23:21,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 08:23:21,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:23:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:23:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-13 08:23:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:21,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 08:23:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:21,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:21,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:23:21,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:21,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-13 08:23:21,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:23:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:21,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:21,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:23:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:22,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:22,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:22,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:23:22,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:22,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:23:22,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:22,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:22,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:22,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:22,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:23:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 30 proven. 115 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:23:22,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260634510] [2020-10-13 08:23:22,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:23:22,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:23:22,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356353156] [2020-10-13 08:23:22,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:23:22,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:23:22,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:23:22,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:23:22,398 INFO L87 Difference]: Start difference. First operand 23310 states and 32002 transitions. Second operand 7 states. [2020-10-13 08:23:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:23:35,762 INFO L93 Difference]: Finished difference Result 58724 states and 86003 transitions. [2020-10-13 08:23:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:23:35,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 605 [2020-10-13 08:23:35,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:23:35,895 INFO L225 Difference]: With dead ends: 58724 [2020-10-13 08:23:35,895 INFO L226 Difference]: Without dead ends: 35420 [2020-10-13 08:23:35,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:23:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35420 states. [2020-10-13 08:23:36,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35420 to 35351. [2020-10-13 08:23:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35351 states. [2020-10-13 08:23:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35351 states to 35351 states and 49033 transitions. [2020-10-13 08:23:36,725 INFO L78 Accepts]: Start accepts. Automaton has 35351 states and 49033 transitions. Word has length 605 [2020-10-13 08:23:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:23:36,726 INFO L479 AbstractCegarLoop]: Abstraction has 35351 states and 49033 transitions. [2020-10-13 08:23:36,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:23:36,726 INFO L276 IsEmpty]: Start isEmpty. Operand 35351 states and 49033 transitions. [2020-10-13 08:23:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2020-10-13 08:23:36,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:23:36,798 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:23:36,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:23:36,798 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:23:36,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:23:36,799 INFO L82 PathProgramCache]: Analyzing trace with hash 353421631, now seen corresponding path program 1 times [2020-10-13 08:23:36,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:23:36,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493932054] [2020-10-13 08:23:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:23:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:37,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:37,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:38,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:41,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:41,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 657 [2020-10-13 08:23:41,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:23:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-13 08:23:41,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:23:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-13 08:23:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 08:23:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:23:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:42,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:42,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:23:42,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:23:42,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:42,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:23:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:42,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:23:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:42,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 08:23:42,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:42,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 08:23:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:42,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:42,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:42,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:42,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:23:42,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:23:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-13 08:23:42,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:23:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:23:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:23:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:42,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 08:23:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:42,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:43,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:43,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:23:43,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 08:23:43,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:23:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:23:43,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:23:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:43,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:43,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:43,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:23:43,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:23:43,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:43,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:23:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 121 proven. 80 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-13 08:23:43,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493932054] [2020-10-13 08:23:43,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:23:43,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:23:43,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798302181] [2020-10-13 08:23:43,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:23:43,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:23:43,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:23:43,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:23:43,871 INFO L87 Difference]: Start difference. First operand 35351 states and 49033 transitions. Second operand 6 states. [2020-10-13 08:23:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:23:52,848 INFO L93 Difference]: Finished difference Result 70821 states and 98373 transitions. [2020-10-13 08:23:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:23:52,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 641 [2020-10-13 08:23:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:23:52,970 INFO L225 Difference]: With dead ends: 70821 [2020-10-13 08:23:52,971 INFO L226 Difference]: Without dead ends: 35407 [2020-10-13 08:23:53,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:23:53,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35407 states. [2020-10-13 08:23:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35407 to 35323. [2020-10-13 08:23:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35323 states. [2020-10-13 08:23:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35323 states to 35323 states and 46997 transitions. [2020-10-13 08:23:53,784 INFO L78 Accepts]: Start accepts. Automaton has 35323 states and 46997 transitions. Word has length 641 [2020-10-13 08:23:53,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:23:53,784 INFO L479 AbstractCegarLoop]: Abstraction has 35323 states and 46997 transitions. [2020-10-13 08:23:53,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:23:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 35323 states and 46997 transitions. [2020-10-13 08:23:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2020-10-13 08:23:53,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:23:53,847 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:23:53,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:23:53,848 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:23:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:23:53,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1557851383, now seen corresponding path program 1 times [2020-10-13 08:23:53,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:23:53,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476486599] [2020-10-13 08:23:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:23:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:53,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:57,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:57,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:58,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 661 [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 08:23:58,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 08:23:58,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:59,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:23:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:59,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:23:59,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:59,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:23:59,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:59,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:59,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:23:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:59,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:59,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:59,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:23:59,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:59,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:23:59,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:23:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:23:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 08:23:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:59,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:59,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:59,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:23:59,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 08:23:59,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:23:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:23:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:23:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:59,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 08:23:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:59,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:59,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:59,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:23:59,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-13 08:23:59,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:23:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:23:59,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:23:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:23:59,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:23:59,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:23:59,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:23:59,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:23:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:23:59,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:23:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:23:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:23:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:23:59,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 125 proven. 80 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-13 08:24:00,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476486599] [2020-10-13 08:24:00,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:24:00,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:24:00,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687357790] [2020-10-13 08:24:00,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:24:00,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:24:00,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:24:00,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:24:00,038 INFO L87 Difference]: Start difference. First operand 35323 states and 46997 transitions. Second operand 7 states. [2020-10-13 08:24:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:24:15,745 INFO L93 Difference]: Finished difference Result 85907 states and 120207 transitions. [2020-10-13 08:24:15,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:24:15,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 645 [2020-10-13 08:24:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:24:15,997 INFO L225 Difference]: With dead ends: 85907 [2020-10-13 08:24:15,998 INFO L226 Difference]: Without dead ends: 50590 [2020-10-13 08:24:16,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:24:16,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50590 states. [2020-10-13 08:24:17,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50590 to 50421. [2020-10-13 08:24:17,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50421 states. [2020-10-13 08:24:17,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50421 states to 50421 states and 67808 transitions. [2020-10-13 08:24:17,649 INFO L78 Accepts]: Start accepts. Automaton has 50421 states and 67808 transitions. Word has length 645 [2020-10-13 08:24:17,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:24:17,650 INFO L479 AbstractCegarLoop]: Abstraction has 50421 states and 67808 transitions. [2020-10-13 08:24:17,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:24:17,650 INFO L276 IsEmpty]: Start isEmpty. Operand 50421 states and 67808 transitions. [2020-10-13 08:24:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2020-10-13 08:24:17,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:24:17,693 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:24:17,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:24:17,694 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:24:17,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:24:17,695 INFO L82 PathProgramCache]: Analyzing trace with hash 419640099, now seen corresponding path program 1 times [2020-10-13 08:24:17,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:24:17,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520200938] [2020-10-13 08:24:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:24:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:17,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:17,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:19,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:20,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:22,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:22,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 699 [2020-10-13 08:24:22,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:24:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 08:24:22,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:24:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:24:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 08:24:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:22,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:24:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:24:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:24:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:24:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:22,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:24:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:22,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:22,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:24:22,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:24:22,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:24:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:24:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:24:22,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:23,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 08:24:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:23,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:23,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:23,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:24:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:23,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-13 08:24:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:23,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:24:23,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:24:23,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:23,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:24:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:23,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:23,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:23,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:24:23,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:23,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:24:23,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:24:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:24:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:24:23,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 45 proven. 148 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2020-10-13 08:24:24,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520200938] [2020-10-13 08:24:24,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:24:24,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:24:24,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634225261] [2020-10-13 08:24:24,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:24:24,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:24:24,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:24:24,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:24:24,913 INFO L87 Difference]: Start difference. First operand 50421 states and 67808 transitions. Second operand 7 states. [2020-10-13 08:24:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:24:38,298 INFO L93 Difference]: Finished difference Result 118603 states and 162963 transitions. [2020-10-13 08:24:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:24:38,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 683 [2020-10-13 08:24:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:24:38,529 INFO L225 Difference]: With dead ends: 118603 [2020-10-13 08:24:38,530 INFO L226 Difference]: Without dead ends: 68188 [2020-10-13 08:24:38,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:24:38,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68188 states. [2020-10-13 08:24:39,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68188 to 65855. [2020-10-13 08:24:39,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65855 states. [2020-10-13 08:24:40,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65855 states to 65855 states and 88600 transitions. [2020-10-13 08:24:40,315 INFO L78 Accepts]: Start accepts. Automaton has 65855 states and 88600 transitions. Word has length 683 [2020-10-13 08:24:40,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:24:40,315 INFO L479 AbstractCegarLoop]: Abstraction has 65855 states and 88600 transitions. [2020-10-13 08:24:40,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:24:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 65855 states and 88600 transitions. [2020-10-13 08:24:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2020-10-13 08:24:40,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:24:40,378 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:24:40,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:24:40,378 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:24:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:24:40,379 INFO L82 PathProgramCache]: Analyzing trace with hash -2109879202, now seen corresponding path program 1 times [2020-10-13 08:24:40,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:24:40,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561984213] [2020-10-13 08:24:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:24:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:40,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:40,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:42,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:44,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:45,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:45,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 708 [2020-10-13 08:24:45,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:24:45,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 08:24:45,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:24:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-13 08:24:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 08:24:45,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:45,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:24:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:45,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:24:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:24:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:45,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-13 08:24:45,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:45,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 08:24:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:45,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:45,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:24:45,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:24:45,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:24:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:24:45,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:24:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:45,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-13 08:24:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:45,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:46,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:46,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:24:46,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-13 08:24:46,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:46,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:24:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:24:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:24:46,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:46,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:24:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:24:46,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:24:46,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:24:46,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:24:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:24:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 127 proven. 80 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:24:46,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561984213] [2020-10-13 08:24:46,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:24:46,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:24:46,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818760553] [2020-10-13 08:24:46,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:24:46,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:24:46,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:24:46,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:24:46,427 INFO L87 Difference]: Start difference. First operand 65855 states and 88600 transitions. Second operand 7 states. [2020-10-13 08:24:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:24:59,434 INFO L93 Difference]: Finished difference Result 132130 states and 179429 transitions. [2020-10-13 08:24:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:24:59,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 692 [2020-10-13 08:24:59,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:24:59,697 INFO L225 Difference]: With dead ends: 132130 [2020-10-13 08:24:59,697 INFO L226 Difference]: Without dead ends: 66281 [2020-10-13 08:24:59,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:24:59,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66281 states. [2020-10-13 08:25:00,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66281 to 65358. [2020-10-13 08:25:00,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65358 states. [2020-10-13 08:25:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65358 states to 65358 states and 84710 transitions. [2020-10-13 08:25:01,152 INFO L78 Accepts]: Start accepts. Automaton has 65358 states and 84710 transitions. Word has length 692 [2020-10-13 08:25:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:25:01,153 INFO L479 AbstractCegarLoop]: Abstraction has 65358 states and 84710 transitions. [2020-10-13 08:25:01,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:25:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 65358 states and 84710 transitions. [2020-10-13 08:25:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2020-10-13 08:25:01,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:25:01,231 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:25:01,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:25:01,232 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:25:01,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:25:01,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1273587438, now seen corresponding path program 1 times [2020-10-13 08:25:01,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:25:01,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718825104] [2020-10-13 08:25:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:25:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:01,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:01,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:04,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:05,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 714 [2020-10-13 08:25:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:25:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 08:25:06,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:25:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-10-13 08:25:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 08:25:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:06,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:25:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:06,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:06,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:06,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:25:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:25:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:06,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:06,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:06,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:25:06,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:25:06,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:25:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:25:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 08:25:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:06,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 08:25:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:06,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:06,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:06,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:25:06,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:06,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:25:06,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:06,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:25:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:25:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:25:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:06,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-13 08:25:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:06,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:06,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:25:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-13 08:25:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:06,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:07,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:25:07,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:07,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:25:07,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:25:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:25:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:25:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 119 proven. 72 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-10-13 08:25:07,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718825104] [2020-10-13 08:25:07,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:25:07,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:25:07,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966017710] [2020-10-13 08:25:07,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:25:07,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:25:07,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:25:07,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:25:07,322 INFO L87 Difference]: Start difference. First operand 65358 states and 84710 transitions. Second operand 7 states. [2020-10-13 08:25:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:25:22,666 INFO L93 Difference]: Finished difference Result 160705 states and 214552 transitions. [2020-10-13 08:25:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:25:22,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 698 [2020-10-13 08:25:22,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:25:23,193 INFO L225 Difference]: With dead ends: 160705 [2020-10-13 08:25:23,193 INFO L226 Difference]: Without dead ends: 95353 [2020-10-13 08:25:23,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:25:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95353 states. [2020-10-13 08:25:24,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95353 to 94431. [2020-10-13 08:25:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94431 states. [2020-10-13 08:25:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94431 states to 94431 states and 119698 transitions. [2020-10-13 08:25:24,786 INFO L78 Accepts]: Start accepts. Automaton has 94431 states and 119698 transitions. Word has length 698 [2020-10-13 08:25:24,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:25:24,787 INFO L479 AbstractCegarLoop]: Abstraction has 94431 states and 119698 transitions. [2020-10-13 08:25:24,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:25:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 94431 states and 119698 transitions. [2020-10-13 08:25:24,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2020-10-13 08:25:24,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:25:24,850 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:25:24,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:25:24,850 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:25:24,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:25:24,850 INFO L82 PathProgramCache]: Analyzing trace with hash 449747842, now seen corresponding path program 1 times [2020-10-13 08:25:24,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:25:24,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557474184] [2020-10-13 08:25:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:25:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:25,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:28,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:30,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 722 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:25:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:30,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:25:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:30,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:30,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:25:30,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:25:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:30,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:30,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:25:30,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:30,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 08:25:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:30,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:25:30,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-13 08:25:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:25:30,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:25:30,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-13 08:25:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:25:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:25:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 463 [2020-10-13 08:25:30,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:25:30,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0