/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:07:32,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:07:32,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:07:32,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:07:32,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:07:32,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:07:32,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:07:32,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:07:32,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:07:32,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:07:32,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:07:32,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:07:32,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:07:32,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:07:32,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:07:32,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:07:32,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:07:32,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:07:32,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:07:32,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:07:32,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:07:32,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:07:32,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:07:32,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:07:32,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:07:32,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:07:32,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:07:32,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:07:32,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:07:32,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:07:32,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:07:32,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:07:32,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:07:32,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:07:32,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:07:32,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:07:32,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:07:32,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:07:32,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:07:32,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:07:32,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:07:32,228 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 [2020-10-14 08:07:32,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:07:32,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:07:32,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:07:32,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:07:32,255 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:07:32,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:07:32,256 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:07:32,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:07:32,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:07:32,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:07:32,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:07:32,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:07:32,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:07:32,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:07:32,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:07:32,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:07:32,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:07:32,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:07:32,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:07:32,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:07:32,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:07:32,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:07:32,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:07:32,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:07:32,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:07:32,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:07:32,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:07:32,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:07:32,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:07:32,260 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:07:32,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:07:32,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:07:32,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:07:32,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:07:32,625 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:07:32,626 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:07:32,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3486f5a4f/75b084bf12404bf797204ad06c3919e6/FLAG960b94fa3 [2020-10-14 08:07:33,323 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:07:33,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:07:33,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3486f5a4f/75b084bf12404bf797204ad06c3919e6/FLAG960b94fa3 [2020-10-14 08:07:33,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3486f5a4f/75b084bf12404bf797204ad06c3919e6 [2020-10-14 08:07:33,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:07:33,656 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:07:33,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:07:33,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:07:33,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:07:33,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:07:33" (1/1) ... [2020-10-14 08:07:33,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d1a539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:33, skipping insertion in model container [2020-10-14 08:07:33,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:07:33" (1/1) ... [2020-10-14 08:07:33,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:07:33,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:07:34,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:07:34,166 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:07:34,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:07:34,266 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:07:34,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34 WrapperNode [2020-10-14 08:07:34,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:07:34,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:07:34,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:07:34,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:07:34,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (1/1) ... [2020-10-14 08:07:34,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:07:34,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:07:34,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:07:34,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:07:34,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (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 [2020-10-14 08:07:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:07:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:07:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:07:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:07:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:07:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:07:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:07:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:07:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:07:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:07:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:07:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:07:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:07:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:07:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:07:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:07:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:07:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:07:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:07:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:07:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:07:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:07:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:07:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:07:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:07:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:07:35,468 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:07:35,469 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:07:35,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:07:35 BoogieIcfgContainer [2020-10-14 08:07:35,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:07:35,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:07:35,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:07:35,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:07:35,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:07:33" (1/3) ... [2020-10-14 08:07:35,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b825df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:07:35, skipping insertion in model container [2020-10-14 08:07:35,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:34" (2/3) ... [2020-10-14 08:07:35,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b825df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:07:35, skipping insertion in model container [2020-10-14 08:07:35,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:07:35" (3/3) ... [2020-10-14 08:07:35,497 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:07:35,511 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:07:35,523 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:07:35,539 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:07:35,568 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:07:35,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:07:35,568 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:07:35,568 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:07:35,568 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:07:35,568 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:07:35,569 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:07:35,569 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:07:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-14 08:07:35,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:07:35,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:35,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:35,611 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:35,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1825328611, now seen corresponding path program 1 times [2020-10-14 08:07:35,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:35,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500012011] [2020-10-14 08:07:35,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:07:36,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-14 08:07:36,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 08:07:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 08:07:36,704 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:36,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:36,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:07:36,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:36,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:07:36,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 08:07:36,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:07:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:36,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:36,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:07:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:36,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:07:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:36,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:07:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:36,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:36,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:36,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:07:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:36,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:07:36,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:36,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:36,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:36,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:36,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:37,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500012011] [2020-10-14 08:07:37,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:37,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:07:37,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995667384] [2020-10-14 08:07:37,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:07:37,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:37,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:07:37,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:07:37,066 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2020-10-14 08:07:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:38,454 INFO L93 Difference]: Finished difference Result 294 states and 465 transitions. [2020-10-14 08:07:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 08:07:38,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:07:38,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:38,471 INFO L225 Difference]: With dead ends: 294 [2020-10-14 08:07:38,472 INFO L226 Difference]: Without dead ends: 184 [2020-10-14 08:07:38,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:38,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-14 08:07:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 169. [2020-10-14 08:07:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-14 08:07:38,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 271 transitions. [2020-10-14 08:07:38,550 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 271 transitions. Word has length 65 [2020-10-14 08:07:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:38,551 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 271 transitions. [2020-10-14 08:07:38,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:07:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 271 transitions. [2020-10-14 08:07:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:07:38,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:38,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:38,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:07:38,556 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:38,556 INFO L82 PathProgramCache]: Analyzing trace with hash 795969313, now seen corresponding path program 1 times [2020-10-14 08:07:38,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:38,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615313245] [2020-10-14 08:07:38,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:38,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:07:39,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-14 08:07:39,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:07:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 08:07:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:07:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,514 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:39,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:07:39,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:39,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:39,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:07:39,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 08:07:39,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:39,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:07:39,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:07:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:39,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:39,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:07:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:39,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:07:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:39,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:07:39,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:39,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:07:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:39,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:07:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:39,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:07:39,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:39,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:39,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:39,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:39,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:39,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:39,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:39,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:39,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:39,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:39,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:39,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:39,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615313245] [2020-10-14 08:07:39,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:39,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:07:39,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934335371] [2020-10-14 08:07:39,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:07:39,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:39,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:07:39,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:07:39,934 INFO L87 Difference]: Start difference. First operand 169 states and 271 transitions. Second operand 12 states. [2020-10-14 08:07:40,478 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:40,697 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:07:40,999 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:07:41,232 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:42,982 INFO L93 Difference]: Finished difference Result 296 states and 467 transitions. [2020-10-14 08:07:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:07:42,983 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-14 08:07:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:42,996 INFO L225 Difference]: With dead ends: 296 [2020-10-14 08:07:42,997 INFO L226 Difference]: Without dead ends: 193 [2020-10-14 08:07:42,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:07:43,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-14 08:07:43,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 169. [2020-10-14 08:07:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-14 08:07:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 241 transitions. [2020-10-14 08:07:43,047 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 241 transitions. Word has length 65 [2020-10-14 08:07:43,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:43,047 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 241 transitions. [2020-10-14 08:07:43,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:07:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 241 transitions. [2020-10-14 08:07:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:07:43,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:43,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:43,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:07:43,053 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:43,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:43,053 INFO L82 PathProgramCache]: Analyzing trace with hash 483350775, now seen corresponding path program 1 times [2020-10-14 08:07:43,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:43,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486420397] [2020-10-14 08:07:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:43,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 08:07:48,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:07:48,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 08:07:48,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:07:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:07:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:07:48,306 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:48,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:48,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:48,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:48,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 08:07:48,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:07:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:48,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:48,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:48,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 08:07:48,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:48,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:48,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:48,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:48,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:07:48,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:48,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:07:48,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:07:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:07:48,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:07:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:48,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:48,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:48,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:48,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:48,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486420397] [2020-10-14 08:07:48,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:48,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:48,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289577004] [2020-10-14 08:07:48,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:48,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:48,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:48,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:48,728 INFO L87 Difference]: Start difference. First operand 169 states and 241 transitions. Second operand 9 states. [2020-10-14 08:07:48,898 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:07:51,041 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:07:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:51,259 INFO L93 Difference]: Finished difference Result 390 states and 584 transitions. [2020-10-14 08:07:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:07:51,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-14 08:07:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:51,272 INFO L225 Difference]: With dead ends: 390 [2020-10-14 08:07:51,273 INFO L226 Difference]: Without dead ends: 293 [2020-10-14 08:07:51,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:07:51,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-14 08:07:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 258. [2020-10-14 08:07:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-14 08:07:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 379 transitions. [2020-10-14 08:07:51,336 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 379 transitions. Word has length 94 [2020-10-14 08:07:51,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:51,336 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 379 transitions. [2020-10-14 08:07:51,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:51,337 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 379 transitions. [2020-10-14 08:07:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:07:51,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:51,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:51,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:07:51,342 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:51,342 INFO L82 PathProgramCache]: Analyzing trace with hash 439536364, now seen corresponding path program 1 times [2020-10-14 08:07:51,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:51,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91527864] [2020-10-14 08:07:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:51,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:51,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:51,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 08:07:56,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 08:07:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 08:07:56,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:56,624 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:56,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:56,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:07:56,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:56,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:56,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:56,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 08:07:56,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:07:56,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:56,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:56,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:56,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:56,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:56,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:56,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:56,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:56,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:07:56,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:56,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:56,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:07:56,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:07:56,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:56,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:07:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:07:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:56,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:07:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:56,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:56,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:57,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:57,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:57,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:57,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:57,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:57,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91527864] [2020-10-14 08:07:57,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:57,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:57,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898166463] [2020-10-14 08:07:57,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:57,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:57,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:57,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:57,044 INFO L87 Difference]: Start difference. First operand 258 states and 379 transitions. Second operand 9 states. [2020-10-14 08:07:57,252 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:57,448 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:07:57,670 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:07:57,853 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:58,781 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:00,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:00,992 INFO L93 Difference]: Finished difference Result 797 states and 1186 transitions. [2020-10-14 08:08:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:08:00,992 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-14 08:08:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:00,997 INFO L225 Difference]: With dead ends: 797 [2020-10-14 08:08:00,998 INFO L226 Difference]: Without dead ends: 565 [2020-10-14 08:08:01,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:08:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-14 08:08:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 509. [2020-10-14 08:08:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2020-10-14 08:08:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions. [2020-10-14 08:08:01,056 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 96 [2020-10-14 08:08:01,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:01,057 INFO L479 AbstractCegarLoop]: Abstraction has 509 states and 740 transitions. [2020-10-14 08:08:01,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions. [2020-10-14 08:08:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:08:01,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:01,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:01,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:08:01,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1028203523, now seen corresponding path program 1 times [2020-10-14 08:08:01,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:01,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491487167] [2020-10-14 08:08:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:01,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:01,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:08:06,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:08:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:08:06,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:08:06,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,360 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:06,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:08:06,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:06,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:06,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 08:08:06,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:08:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:06,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:06,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:06,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:06,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:06,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:08:06,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:06,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:06,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:06,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:08:06,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:08:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:08:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:06,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:06,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:06,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:06,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:06,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:06,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:06,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:06,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:06,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:06,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:06,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491487167] [2020-10-14 08:08:06,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:06,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:06,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958066151] [2020-10-14 08:08:06,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:06,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:06,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:06,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:06,832 INFO L87 Difference]: Start difference. First operand 509 states and 740 transitions. Second operand 9 states. [2020-10-14 08:08:07,089 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:07,334 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:08:07,824 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:08:08,029 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:08:08,912 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:11,982 INFO L93 Difference]: Finished difference Result 1925 states and 2814 transitions. [2020-10-14 08:08:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:08:11,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:08:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:11,998 INFO L225 Difference]: With dead ends: 1925 [2020-10-14 08:08:11,998 INFO L226 Difference]: Without dead ends: 1473 [2020-10-14 08:08:12,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:08:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2020-10-14 08:08:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1333. [2020-10-14 08:08:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2020-10-14 08:08:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1916 transitions. [2020-10-14 08:08:12,150 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1916 transitions. Word has length 97 [2020-10-14 08:08:12,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:12,151 INFO L479 AbstractCegarLoop]: Abstraction has 1333 states and 1916 transitions. [2020-10-14 08:08:12,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1916 transitions. [2020-10-14 08:08:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:08:12,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:12,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:12,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:08:12,163 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:12,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:12,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1950996893, now seen corresponding path program 1 times [2020-10-14 08:08:12,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:12,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667541786] [2020-10-14 08:08:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:12,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:12,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:12,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:12,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:12,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:08:17,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:08:17,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:08:17,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:17,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:17,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:08:17,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:17,415 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:17,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:17,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:08:17,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:17,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:17,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 08:08:17,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:08:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:17,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:17,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:17,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:17,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:17,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:17,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:17,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:17,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:08:17,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:17,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:17,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:17,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:08:17,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:08:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:08:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:17,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:17,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:17,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:17,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:17,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:17,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:17,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667541786] [2020-10-14 08:08:17,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:17,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:17,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771378736] [2020-10-14 08:08:17,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:17,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:17,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:17,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:17,918 INFO L87 Difference]: Start difference. First operand 1333 states and 1916 transitions. Second operand 9 states. [2020-10-14 08:08:18,159 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:18,369 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:08:18,639 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:08:18,995 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:08:19,920 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:22,568 INFO L93 Difference]: Finished difference Result 4671 states and 6801 transitions. [2020-10-14 08:08:22,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:08:22,569 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:08:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:22,589 INFO L225 Difference]: With dead ends: 4671 [2020-10-14 08:08:22,589 INFO L226 Difference]: Without dead ends: 3382 [2020-10-14 08:08:22,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:08:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2020-10-14 08:08:22,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 3098. [2020-10-14 08:08:22,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3098 states. [2020-10-14 08:08:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4430 transitions. [2020-10-14 08:08:22,789 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4430 transitions. Word has length 97 [2020-10-14 08:08:22,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:22,790 INFO L479 AbstractCegarLoop]: Abstraction has 3098 states and 4430 transitions. [2020-10-14 08:08:22,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:22,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4430 transitions. [2020-10-14 08:08:22,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 08:08:22,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:22,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:22,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:08:22,798 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:22,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:22,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1346789913, now seen corresponding path program 1 times [2020-10-14 08:08:22,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:22,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662024346] [2020-10-14 08:08:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:25,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:26,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:26,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 08:08:26,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:08:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4060 [2020-10-14 08:08:26,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:26,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 08:08:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:08:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:27,063 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:27,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:27,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:27,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:27,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 08:08:27,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 08:08:27,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:27,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:27,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:27,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:27,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:27,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:27,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:08:27,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:08:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:08:27,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:27,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:27,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:27,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:27,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:27,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:08:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:27,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:27,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:27,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:27,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:27,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:27,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:27,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662024346] [2020-10-14 08:08:27,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:27,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:27,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233883133] [2020-10-14 08:08:27,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:27,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:27,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:27,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:27,367 INFO L87 Difference]: Start difference. First operand 3098 states and 4430 transitions. Second operand 9 states. [2020-10-14 08:08:27,584 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:08:29,900 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:08:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:30,136 INFO L93 Difference]: Finished difference Result 7484 states and 11022 transitions. [2020-10-14 08:08:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:08:30,137 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-14 08:08:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:30,164 INFO L225 Difference]: With dead ends: 7484 [2020-10-14 08:08:30,164 INFO L226 Difference]: Without dead ends: 5386 [2020-10-14 08:08:30,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:08:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2020-10-14 08:08:30,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 4852. [2020-10-14 08:08:30,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4852 states. [2020-10-14 08:08:30,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 7028 transitions. [2020-10-14 08:08:30,484 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 7028 transitions. Word has length 98 [2020-10-14 08:08:30,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:30,485 INFO L479 AbstractCegarLoop]: Abstraction has 4852 states and 7028 transitions. [2020-10-14 08:08:30,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 7028 transitions. [2020-10-14 08:08:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 08:08:30,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:30,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:30,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:08:30,499 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:30,499 INFO L82 PathProgramCache]: Analyzing trace with hash 472684178, now seen corresponding path program 1 times [2020-10-14 08:08:30,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:30,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104155946] [2020-10-14 08:08:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:30,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:35,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 08:08:35,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:08:35,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:35,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:08:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:35,714 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:35,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:35,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:35,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:35,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:35,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:35,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:35,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:35,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:08:35,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 08:08:35,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:35,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:35,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:08:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:35,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:35,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:35,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:35,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:35,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:35,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:35,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:35,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:35,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:35,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:08:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:35,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:35,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:35,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:35,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:35,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:35,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 08:08:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:35,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:35,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:35,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:35,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:35,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:35,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:35,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:08:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:35,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:08:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:36,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:36,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:36,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:08:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:36,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:08:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:36,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:36,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:36,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:36,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:36,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:36,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:36,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104155946] [2020-10-14 08:08:36,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:36,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:08:36,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804626691] [2020-10-14 08:08:36,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:08:36,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:36,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:08:36,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:08:36,058 INFO L87 Difference]: Start difference. First operand 4852 states and 7028 transitions. Second operand 7 states. [2020-10-14 08:08:36,317 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:37,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:37,649 INFO L93 Difference]: Finished difference Result 10577 states and 15127 transitions. [2020-10-14 08:08:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:08:37,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-14 08:08:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:37,678 INFO L225 Difference]: With dead ends: 10577 [2020-10-14 08:08:37,678 INFO L226 Difference]: Without dead ends: 5945 [2020-10-14 08:08:37,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:08:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2020-10-14 08:08:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 4879. [2020-10-14 08:08:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4879 states. [2020-10-14 08:08:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 7061 transitions. [2020-10-14 08:08:37,970 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 7061 transitions. Word has length 100 [2020-10-14 08:08:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:37,971 INFO L479 AbstractCegarLoop]: Abstraction has 4879 states and 7061 transitions. [2020-10-14 08:08:37,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:08:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 7061 transitions. [2020-10-14 08:08:37,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:37,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:37,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:37,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:08:37,982 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:37,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:37,982 INFO L82 PathProgramCache]: Analyzing trace with hash 428731464, now seen corresponding path program 1 times [2020-10-14 08:08:37,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:37,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636713859] [2020-10-14 08:08:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:38,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:38,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:38,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:38,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:42,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 08:08:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,202 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:43,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 08:08:43,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:43,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:43,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:43,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:08:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:08:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:43,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:43,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:43,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:43,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:43,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:43,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:43,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:43,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:43,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:43,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:43,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636713859] [2020-10-14 08:08:43,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:43,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:43,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073310693] [2020-10-14 08:08:43,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:43,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:43,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:43,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:43,465 INFO L87 Difference]: Start difference. First operand 4879 states and 7061 transitions. Second operand 9 states. [2020-10-14 08:08:43,664 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:43,875 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:08:44,179 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:08:44,691 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:08:45,256 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:48,281 INFO L93 Difference]: Finished difference Result 15988 states and 23604 transitions. [2020-10-14 08:08:48,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:08:48,286 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-14 08:08:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:48,348 INFO L225 Difference]: With dead ends: 15988 [2020-10-14 08:08:48,348 INFO L226 Difference]: Without dead ends: 11857 [2020-10-14 08:08:48,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:08:48,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11857 states. [2020-10-14 08:08:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11857 to 10834. [2020-10-14 08:08:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10834 states. [2020-10-14 08:08:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10834 states to 10834 states and 15552 transitions. [2020-10-14 08:08:49,035 INFO L78 Accepts]: Start accepts. Automaton has 10834 states and 15552 transitions. Word has length 101 [2020-10-14 08:08:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:49,036 INFO L479 AbstractCegarLoop]: Abstraction has 10834 states and 15552 transitions. [2020-10-14 08:08:49,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:49,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10834 states and 15552 transitions. [2020-10-14 08:08:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:49,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:49,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:49,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:08:49,059 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:49,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1743634455, now seen corresponding path program 1 times [2020-10-14 08:08:49,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:49,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706120264] [2020-10-14 08:08:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:49,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:49,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:49,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:49,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:50,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:50,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:08:54,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:08:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:08:54,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:08:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:54,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,252 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:54,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:08:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:54,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:54,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:54,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:08:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 08:08:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:54,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:08:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:08:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:08:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:08:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:54,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:54,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706120264] [2020-10-14 08:08:54,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:54,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:08:54,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771335367] [2020-10-14 08:08:54,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:08:54,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:54,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:08:54,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:08:54,455 INFO L87 Difference]: Start difference. First operand 10834 states and 15552 transitions. Second operand 7 states. [2020-10-14 08:08:54,746 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:56,275 INFO L93 Difference]: Finished difference Result 14159 states and 20305 transitions. [2020-10-14 08:08:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:08:56,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2020-10-14 08:08:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:56,320 INFO L225 Difference]: With dead ends: 14159 [2020-10-14 08:08:56,320 INFO L226 Difference]: Without dead ends: 11939 [2020-10-14 08:08:56,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:08:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11939 states. [2020-10-14 08:08:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11939 to 10840. [2020-10-14 08:08:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10840 states. [2020-10-14 08:08:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10840 states to 10840 states and 15554 transitions. [2020-10-14 08:08:57,036 INFO L78 Accepts]: Start accepts. Automaton has 10840 states and 15554 transitions. Word has length 101 [2020-10-14 08:08:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:57,036 INFO L479 AbstractCegarLoop]: Abstraction has 10840 states and 15554 transitions. [2020-10-14 08:08:57,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:08:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10840 states and 15554 transitions. [2020-10-14 08:08:57,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:57,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:57,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:57,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:08:57,051 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:57,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:57,051 INFO L82 PathProgramCache]: Analyzing trace with hash -302691111, now seen corresponding path program 1 times [2020-10-14 08:08:57,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:57,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14358347] [2020-10-14 08:08:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:09:02,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:09:02,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:09:02,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:02,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:02,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:09:02,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,262 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:02,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:02,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:02,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:02,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:02,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:02,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:02,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:09:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 08:09:02,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:09:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:09:02,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:02,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:02,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:02,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:02,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:09:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:09:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:09:02,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:02,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:09:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:02,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:02,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:02,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:02,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:02,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:02,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:02,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:02,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:02,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14358347] [2020-10-14 08:09:02,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:02,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:02,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650551158] [2020-10-14 08:09:02,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:02,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:02,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:02,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:02,800 INFO L87 Difference]: Start difference. First operand 10840 states and 15554 transitions. Second operand 10 states. [2020-10-14 08:09:02,995 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:03,364 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:09:03,575 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:09:03,788 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:04,035 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:09:04,253 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:09:08,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:08,415 INFO L93 Difference]: Finished difference Result 23656 states and 34383 transitions. [2020-10-14 08:09:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:09:08,418 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-14 08:09:08,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:08,473 INFO L225 Difference]: With dead ends: 23656 [2020-10-14 08:09:08,474 INFO L226 Difference]: Without dead ends: 13599 [2020-10-14 08:09:08,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:09:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13599 states. [2020-10-14 08:09:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13599 to 12468. [2020-10-14 08:09:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12468 states. [2020-10-14 08:09:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12468 states to 12468 states and 17837 transitions. [2020-10-14 08:09:09,211 INFO L78 Accepts]: Start accepts. Automaton has 12468 states and 17837 transitions. Word has length 101 [2020-10-14 08:09:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:09,212 INFO L479 AbstractCegarLoop]: Abstraction has 12468 states and 17837 transitions. [2020-10-14 08:09:09,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:09:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 12468 states and 17837 transitions. [2020-10-14 08:09:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:09:09,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:09,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:09,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:09:09,228 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1029253214, now seen corresponding path program 1 times [2020-10-14 08:09:09,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:09,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587961414] [2020-10-14 08:09:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:09,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:09,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:09,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:09,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:09,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:09:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,437 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:14,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:14,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:14,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:09:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:14,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:14,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:14,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:09:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:09:14,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:09:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:14,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:14,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:09:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:09:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:14,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:14,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587961414] [2020-10-14 08:09:14,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:14,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:14,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917915470] [2020-10-14 08:09:14,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:14,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:14,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:14,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:14,852 INFO L87 Difference]: Start difference. First operand 12468 states and 17837 transitions. Second operand 10 states. [2020-10-14 08:09:15,040 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:15,300 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:09:15,499 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:09:15,710 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:15,945 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:09:16,133 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:09:22,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:22,549 INFO L93 Difference]: Finished difference Result 33980 states and 48758 transitions. [2020-10-14 08:09:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:09:22,549 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-14 08:09:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:22,619 INFO L225 Difference]: With dead ends: 33980 [2020-10-14 08:09:22,620 INFO L226 Difference]: Without dead ends: 21308 [2020-10-14 08:09:22,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:09:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21308 states. [2020-10-14 08:09:23,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21308 to 19677. [2020-10-14 08:09:23,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19677 states. [2020-10-14 08:09:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19677 states to 19677 states and 27767 transitions. [2020-10-14 08:09:23,569 INFO L78 Accepts]: Start accepts. Automaton has 19677 states and 27767 transitions. Word has length 101 [2020-10-14 08:09:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:23,570 INFO L479 AbstractCegarLoop]: Abstraction has 19677 states and 27767 transitions. [2020-10-14 08:09:23,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:09:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 19677 states and 27767 transitions. [2020-10-14 08:09:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:09:23,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:23,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:23,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:09:23,586 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:23,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:23,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1182313655, now seen corresponding path program 1 times [2020-10-14 08:09:23,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:23,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449090401] [2020-10-14 08:09:23,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:24,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:09:28,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:09:28,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4684 [2020-10-14 08:09:28,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-14 08:09:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:09:28,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,473 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:28,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:28,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:28,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:28,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:28,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:09:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:09:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:28,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:28,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:28,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:28,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:28,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:28,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:28,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:28,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:28,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:28,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:28,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:09:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:09:28,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:28,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:28,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:09:28,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:09:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:28,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:28,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:28,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:28,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:28,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:28,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:28,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449090401] [2020-10-14 08:09:28,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:28,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:28,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997397773] [2020-10-14 08:09:28,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:28,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:28,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:28,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:28,718 INFO L87 Difference]: Start difference. First operand 19677 states and 27767 transitions. Second operand 9 states. [2020-10-14 08:09:29,219 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:31,549 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:09:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:32,184 INFO L93 Difference]: Finished difference Result 43285 states and 61568 transitions. [2020-10-14 08:09:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:09:32,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:09:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:32,268 INFO L225 Difference]: With dead ends: 43285 [2020-10-14 08:09:32,268 INFO L226 Difference]: Without dead ends: 27713 [2020-10-14 08:09:32,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:09:32,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27713 states. [2020-10-14 08:09:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27713 to 25683. [2020-10-14 08:09:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25683 states. [2020-10-14 08:09:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25683 states to 25683 states and 36172 transitions. [2020-10-14 08:09:33,395 INFO L78 Accepts]: Start accepts. Automaton has 25683 states and 36172 transitions. Word has length 102 [2020-10-14 08:09:33,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:33,396 INFO L479 AbstractCegarLoop]: Abstraction has 25683 states and 36172 transitions. [2020-10-14 08:09:33,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25683 states and 36172 transitions. [2020-10-14 08:09:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:09:33,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:33,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:33,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:09:33,410 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:33,411 INFO L82 PathProgramCache]: Analyzing trace with hash -2118476118, now seen corresponding path program 1 times [2020-10-14 08:09:33,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:33,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224965029] [2020-10-14 08:09:33,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:33,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:35,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:09:38,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:09:38,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-14 08:09:38,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:09:38,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,713 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:38,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:38,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:09:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:38,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:38,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:38,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:38,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:38,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:09:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:09:38,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:09:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:38,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:38,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:38,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224965029] [2020-10-14 08:09:38,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:38,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:38,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5055349] [2020-10-14 08:09:38,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:38,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:38,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:38,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:38,981 INFO L87 Difference]: Start difference. First operand 25683 states and 36172 transitions. Second operand 9 states. [2020-10-14 08:09:39,181 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:39,402 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:09:39,639 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:09:40,221 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:09:40,945 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:44,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:44,554 INFO L93 Difference]: Finished difference Result 40808 states and 57220 transitions. [2020-10-14 08:09:44,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:09:44,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:09:44,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:44,653 INFO L225 Difference]: With dead ends: 40808 [2020-10-14 08:09:44,653 INFO L226 Difference]: Without dead ends: 29285 [2020-10-14 08:09:44,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:09:44,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29285 states. [2020-10-14 08:09:46,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29285 to 27613. [2020-10-14 08:09:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27613 states. [2020-10-14 08:09:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27613 states to 27613 states and 38816 transitions. [2020-10-14 08:09:46,206 INFO L78 Accepts]: Start accepts. Automaton has 27613 states and 38816 transitions. Word has length 102 [2020-10-14 08:09:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:46,207 INFO L479 AbstractCegarLoop]: Abstraction has 27613 states and 38816 transitions. [2020-10-14 08:09:46,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:46,207 INFO L276 IsEmpty]: Start isEmpty. Operand 27613 states and 38816 transitions. [2020-10-14 08:09:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 08:09:46,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:46,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:46,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:09:46,224 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:46,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:46,224 INFO L82 PathProgramCache]: Analyzing trace with hash 108994515, now seen corresponding path program 1 times [2020-10-14 08:09:46,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:46,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909003048] [2020-10-14 08:09:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 08:09:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:09:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,434 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:51,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:51,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:51,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:09:51,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:51,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:09:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:51,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:51,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:51,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:51,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:51,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:09:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:09:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:51,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:51,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:51,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:51,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:51,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:51,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909003048] [2020-10-14 08:09:51,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:51,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:51,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579169258] [2020-10-14 08:09:51,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:51,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:51,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:51,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:51,659 INFO L87 Difference]: Start difference. First operand 27613 states and 38816 transitions. Second operand 9 states. [2020-10-14 08:09:51,848 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:55,106 INFO L93 Difference]: Finished difference Result 49847 states and 70559 transitions. [2020-10-14 08:09:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:09:55,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-14 08:09:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:55,223 INFO L225 Difference]: With dead ends: 49847 [2020-10-14 08:09:55,223 INFO L226 Difference]: Without dead ends: 35412 [2020-10-14 08:09:55,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:09:55,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35412 states. [2020-10-14 08:09:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35412 to 33261. [2020-10-14 08:09:56,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33261 states. [2020-10-14 08:09:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33261 states to 33261 states and 46695 transitions. [2020-10-14 08:09:56,895 INFO L78 Accepts]: Start accepts. Automaton has 33261 states and 46695 transitions. Word has length 103 [2020-10-14 08:09:56,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:56,895 INFO L479 AbstractCegarLoop]: Abstraction has 33261 states and 46695 transitions. [2020-10-14 08:09:56,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 33261 states and 46695 transitions. [2020-10-14 08:09:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 08:09:56,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:56,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:56,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:09:56,906 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:56,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1842721043, now seen corresponding path program 1 times [2020-10-14 08:09:56,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:56,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212596096] [2020-10-14 08:09:56,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:56,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:56,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:57,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:57,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:01,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:10:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:02,121 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:02,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:02,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:02,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:02,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:02,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:10:02,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 08:10:02,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:10:02,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:02,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:02,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:02,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:02,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:02,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:02,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:02,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:02,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:02,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:02,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:02,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:02,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:10:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:02,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:02,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:10:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:10:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:10:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:02,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:02,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:02,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:02,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:02,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:02,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:10:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:02,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:02,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:02,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:02,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:02,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:02,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212596096] [2020-10-14 08:10:02,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:02,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:10:02,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385896996] [2020-10-14 08:10:02,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:10:02,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:02,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:10:02,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:10:02,807 INFO L87 Difference]: Start difference. First operand 33261 states and 46695 transitions. Second operand 10 states. [2020-10-14 08:10:03,018 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:03,424 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:10:03,615 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:10:03,832 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-14 08:10:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:08,323 INFO L93 Difference]: Finished difference Result 35009 states and 48927 transitions. [2020-10-14 08:10:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:10:08,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-14 08:10:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:08,387 INFO L225 Difference]: With dead ends: 35009 [2020-10-14 08:10:08,387 INFO L226 Difference]: Without dead ends: 29181 [2020-10-14 08:10:08,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:10:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29181 states. [2020-10-14 08:10:09,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29181 to 27435. [2020-10-14 08:10:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27435 states. [2020-10-14 08:10:09,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27435 states to 27435 states and 38643 transitions. [2020-10-14 08:10:09,791 INFO L78 Accepts]: Start accepts. Automaton has 27435 states and 38643 transitions. Word has length 104 [2020-10-14 08:10:09,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:09,791 INFO L479 AbstractCegarLoop]: Abstraction has 27435 states and 38643 transitions. [2020-10-14 08:10:09,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:09,792 INFO L276 IsEmpty]: Start isEmpty. Operand 27435 states and 38643 transitions. [2020-10-14 08:10:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 08:10:09,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:09,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:09,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:10:09,800 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:09,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:09,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1146254160, now seen corresponding path program 1 times [2020-10-14 08:10:09,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:09,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040320507] [2020-10-14 08:10:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:09,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:10,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:12,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:14,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:14,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 08:10:14,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:10:14,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:10:14,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:14,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:10:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:10:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:14,989 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:14,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:14,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:14,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:15,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:10:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:15,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:15,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:15,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:15,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:15,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:15,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:10:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:10:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:15,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:15,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:15,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:15,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:10:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:15,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:15,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:10:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:15,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:15,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:15,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:15,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:15,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:15,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:15,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040320507] [2020-10-14 08:10:15,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:15,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:15,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144474147] [2020-10-14 08:10:15,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:15,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:15,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:15,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:15,193 INFO L87 Difference]: Start difference. First operand 27435 states and 38643 transitions. Second operand 9 states. [2020-10-14 08:10:15,371 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:10:17,123 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:10:19,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:19,524 INFO L93 Difference]: Finished difference Result 71845 states and 101526 transitions. [2020-10-14 08:10:19,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:10:19,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 105 [2020-10-14 08:10:19,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:19,630 INFO L225 Difference]: With dead ends: 71845 [2020-10-14 08:10:19,630 INFO L226 Difference]: Without dead ends: 47419 [2020-10-14 08:10:19,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:10:19,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47419 states. [2020-10-14 08:10:21,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47419 to 43121. [2020-10-14 08:10:21,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43121 states. [2020-10-14 08:10:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43121 states to 43121 states and 58724 transitions. [2020-10-14 08:10:22,055 INFO L78 Accepts]: Start accepts. Automaton has 43121 states and 58724 transitions. Word has length 105 [2020-10-14 08:10:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:22,055 INFO L479 AbstractCegarLoop]: Abstraction has 43121 states and 58724 transitions. [2020-10-14 08:10:22,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:10:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 43121 states and 58724 transitions. [2020-10-14 08:10:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:10:22,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:22,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:22,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:10:22,064 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:22,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:22,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1725336841, now seen corresponding path program 1 times [2020-10-14 08:10:22,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:22,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876161343] [2020-10-14 08:10:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:22,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 08:10:27,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:10:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:10:27,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:10:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,270 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:27,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:27,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:27,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:27,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:10:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:27,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:10:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:10:27,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:10:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:10:27,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:27,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 08:10:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:27,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:27,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:27,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:27,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:27,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:27,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:27,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:27,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:27,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:27,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876161343] [2020-10-14 08:10:27,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:27,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:27,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319898630] [2020-10-14 08:10:27,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:27,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:27,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:27,543 INFO L87 Difference]: Start difference. First operand 43121 states and 58724 transitions. Second operand 9 states. [2020-10-14 08:10:27,747 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:27,973 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:10:28,194 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:10:28,924 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:10:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:34,236 INFO L93 Difference]: Finished difference Result 64230 states and 87221 transitions. [2020-10-14 08:10:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:10:34,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-14 08:10:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:34,351 INFO L225 Difference]: With dead ends: 64230 [2020-10-14 08:10:34,351 INFO L226 Difference]: Without dead ends: 50238 [2020-10-14 08:10:34,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:10:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50238 states. [2020-10-14 08:10:36,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50238 to 47014. [2020-10-14 08:10:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47014 states. [2020-10-14 08:10:36,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47014 states to 47014 states and 64004 transitions. [2020-10-14 08:10:36,757 INFO L78 Accepts]: Start accepts. Automaton has 47014 states and 64004 transitions. Word has length 108 [2020-10-14 08:10:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:36,758 INFO L479 AbstractCegarLoop]: Abstraction has 47014 states and 64004 transitions. [2020-10-14 08:10:36,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:10:36,758 INFO L276 IsEmpty]: Start isEmpty. Operand 47014 states and 64004 transitions. [2020-10-14 08:10:36,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:10:36,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:36,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:36,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:10:36,771 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:36,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:36,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1882698144, now seen corresponding path program 1 times [2020-10-14 08:10:36,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:36,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207072573] [2020-10-14 08:10:36,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:36,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:37,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:41,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:41,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:10:41,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:10:41,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:41,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:41,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:41,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 08:10:41,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 08:10:41,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:41,991 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:41,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:41,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:42,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:42,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:10:42,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 08:10:42,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:42,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:42,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:42,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:42,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:42,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:10:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:10:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:42,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:42,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:10:42,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 08:10:42,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:10:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:10:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:42,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:42,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:10:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:42,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:42,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:42,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:42,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207072573] [2020-10-14 08:10:42,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:42,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:42,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440868977] [2020-10-14 08:10:42,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:42,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:42,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:42,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:42,241 INFO L87 Difference]: Start difference. First operand 47014 states and 64004 transitions. Second operand 9 states. [2020-10-14 08:10:42,754 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:45,059 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:48,960 INFO L93 Difference]: Finished difference Result 105256 states and 144281 transitions. [2020-10-14 08:10:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:10:48,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:10:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:49,117 INFO L225 Difference]: With dead ends: 105256 [2020-10-14 08:10:49,117 INFO L226 Difference]: Without dead ends: 65765 [2020-10-14 08:10:49,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:10:49,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65765 states. [2020-10-14 08:10:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65765 to 62237. [2020-10-14 08:10:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62237 states. [2020-10-14 08:10:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62237 states to 62237 states and 84231 transitions. [2020-10-14 08:10:52,409 INFO L78 Accepts]: Start accepts. Automaton has 62237 states and 84231 transitions. Word has length 109 [2020-10-14 08:10:52,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:52,410 INFO L479 AbstractCegarLoop]: Abstraction has 62237 states and 84231 transitions. [2020-10-14 08:10:52,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:10:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 62237 states and 84231 transitions. [2020-10-14 08:10:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:10:52,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:52,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:10:52,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:10:52,420 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:52,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:52,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1229570899, now seen corresponding path program 1 times [2020-10-14 08:10:52,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:52,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015343496] [2020-10-14 08:10:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:52,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:54,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:57,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:57,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:10:57,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5228 [2020-10-14 08:10:57,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:57,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 08:10:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:10:57,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:57,863 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:57,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:57,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:57,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:57,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:57,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:57,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:57,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:10:57,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:57,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:57,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:57,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:57,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:57,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:57,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:57,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:57,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:57,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:57,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:57,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:10:57,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:10:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:57,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:57,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:57,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:10:57,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:57,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:10:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:58,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:10:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:58,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:58,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:58,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:58,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:58,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:58,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:10:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:58,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:58,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:58,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015343496] [2020-10-14 08:10:58,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:58,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:58,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700262092] [2020-10-14 08:10:58,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:58,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:58,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:58,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:58,084 INFO L87 Difference]: Start difference. First operand 62237 states and 84231 transitions. Second operand 9 states. [2020-10-14 08:10:58,284 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:11:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:11:03,742 INFO L93 Difference]: Finished difference Result 111031 states and 151042 transitions. [2020-10-14 08:11:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:11:03,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:11:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:11:03,927 INFO L225 Difference]: With dead ends: 111031 [2020-10-14 08:11:03,927 INFO L226 Difference]: Without dead ends: 73916 [2020-10-14 08:11:03,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:11:04,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73916 states.