/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_floodmax.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:21:46,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:21:46,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:21:46,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:21:46,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:21:46,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:21:46,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:21:46,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:21:46,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:21:46,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:21:46,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:21:46,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:21:46,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:21:46,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:21:46,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:21:46,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:21:46,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:21:46,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:21:46,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:21:46,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:21:46,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:21:46,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:21:46,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:21:46,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:21:46,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:21:46,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:21:46,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:21:46,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:21:46,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:21:46,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:21:46,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:21:46,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:21:46,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:21:46,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:21:46,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:21:46,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:21:46,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:21:46,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:21:46,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:21:46,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:21:46,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:21:46,235 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 [2020-10-15 02:21:46,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:21:46,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:21:46,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:21:46,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:21:46,261 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:21:46,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:21:46,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:21:46,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:21:46,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:21:46,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:21:46,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:21:46,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:21:46,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:21:46,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:21:46,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:21:46,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:21:46,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:21:46,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:21:46,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:21:46,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:21:46,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:21:46,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:21:46,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:21:46,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:21:46,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:21:46,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:21:46,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:21:46,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:21:46,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:21:46,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:21:46,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:21:46,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:21:46,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:21:46,600 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:21:46,601 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:21:46,601 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:21:46,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d962f295/0358681eb3f541b6b0ed56f8f9996497/FLAG5f2c8546e [2020-10-15 02:21:47,225 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:21:47,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:21:47,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d962f295/0358681eb3f541b6b0ed56f8f9996497/FLAG5f2c8546e [2020-10-15 02:21:47,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d962f295/0358681eb3f541b6b0ed56f8f9996497 [2020-10-15 02:21:47,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:21:47,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:21:47,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:21:47,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:21:47,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:21:47,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:21:47" (1/1) ... [2020-10-15 02:21:47,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e6aecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:47, skipping insertion in model container [2020-10-15 02:21:47,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:21:47" (1/1) ... [2020-10-15 02:21:47,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:21:47,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:21:48,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:21:48,112 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:21:48,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:21:48,215 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:21:48,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48 WrapperNode [2020-10-15 02:21:48,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:21:48,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:21:48,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:21:48,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:21:48,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (1/1) ... [2020-10-15 02:21:48,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:21:48,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:21:48,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:21:48,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:21:48,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (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 [2020-10-15 02:21:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:21:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:21:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:21:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:21:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:21:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:21:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:21:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:21:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:21:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:21:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:21:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:21:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:21:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:21:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:21:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:21:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:21:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:21:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:21:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:21:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:21:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:21:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:21:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:21:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:21:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:21:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:21:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:21:48,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:21:49,647 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:21:49,647 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:21:49,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:49 BoogieIcfgContainer [2020-10-15 02:21:49,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:21:49,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:21:49,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:21:49,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:21:49,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:21:47" (1/3) ... [2020-10-15 02:21:49,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260e1789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:21:49, skipping insertion in model container [2020-10-15 02:21:49,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:48" (2/3) ... [2020-10-15 02:21:49,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260e1789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:21:49, skipping insertion in model container [2020-10-15 02:21:49,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:49" (3/3) ... [2020-10-15 02:21:49,663 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:21:49,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:21:49,687 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:21:49,702 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:21:49,729 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:21:49,730 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:21:49,730 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:21:49,730 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:21:49,730 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:21:49,730 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:21:49,731 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:21:49,731 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:21:49,757 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-15 02:21:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:21:49,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:49,774 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] [2020-10-15 02:21:49,775 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:49,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:49,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-15 02:21:49,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:49,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332567210] [2020-10-15 02:21:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:50,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:50,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-15 02:21:50,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:50,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-10-15 02:21:50,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:50,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:50,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-15 02:21:50,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:50,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:21:51,343 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:21:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:51,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:21:51,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:51,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:21:51,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-15 02:21:51,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:21:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:51,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:51,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:21:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:21:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:51,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:21:51,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:51,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:21:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:51,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:51,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:21:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:51,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:51,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:21:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:51,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:51,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 02:21:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:51,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:51,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:51,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:51,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:51,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:51,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:51,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:51,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332567210] [2020-10-15 02:21:51,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:51,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:21:51,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182646954] [2020-10-15 02:21:51,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:21:51,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:51,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:21:51,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:21:51,875 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-15 02:21:54,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:54,150 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-15 02:21:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:21:54,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-15 02:21:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:54,171 INFO L225 Difference]: With dead ends: 508 [2020-10-15 02:21:54,171 INFO L226 Difference]: Without dead ends: 368 [2020-10-15 02:21:54,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:21:54,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-15 02:21:54,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-15 02:21:54,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-15 02:21:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-15 02:21:54,299 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-15 02:21:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:54,300 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-15 02:21:54,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:21:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-15 02:21:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:21:54,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:54,313 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] [2020-10-15 02:21:54,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:21:54,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:54,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:54,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-15 02:21:54,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:54,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901670767] [2020-10-15 02:21:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:54,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:55,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:55,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-15 02:21:55,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:55,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-10-15 02:21:55,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:55,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:21:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-15 02:21:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,067 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:21:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:56,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:21:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:21:56,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-15 02:21:56,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:21:56,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:21:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:21:56,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:56,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:56,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:21:56,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:21:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:21:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:56,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:21:56,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:21:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:56,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:21:56,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:56,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:56,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:56,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:21:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:56,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:56,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:21:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:56,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:56,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 02:21:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:56,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:56,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:56,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:56,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:56,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:56,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:56,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901670767] [2020-10-15 02:21:56,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:56,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:21:56,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092854938] [2020-10-15 02:21:56,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:21:56,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:56,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:21:56,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:21:56,738 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-15 02:21:58,896 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 02:21:59,287 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:21:59,757 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 02:22:00,103 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:22:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:02,811 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-15 02:22:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:22:02,811 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-15 02:22:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:02,816 INFO L225 Difference]: With dead ends: 506 [2020-10-15 02:22:02,816 INFO L226 Difference]: Without dead ends: 368 [2020-10-15 02:22:02,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:22:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-15 02:22:02,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-15 02:22:02,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-15 02:22:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-15 02:22:02,886 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-15 02:22:02,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:02,886 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-15 02:22:02,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:22:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-15 02:22:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 02:22:02,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:02,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:02,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:22:02,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:02,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:02,889 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-15 02:22:02,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:02,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424486925] [2020-10-15 02:22:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:03,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:03,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:04,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:05,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-15 02:22:08,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:22:08,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-15 02:22:08,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-15 02:22:08,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:22:08,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:22:08,457 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:22:08,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:08,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:22:08,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:08,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:08,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:08,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:22:08,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:22:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:22:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:08,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:22:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:08,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:22:08,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:08,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:08,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:22:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:08,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:22:08,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:08,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:08,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:08,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:22:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:08,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:08,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:08,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:08,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:08,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:22:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:08,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:08,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:08,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:08,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:22:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:08,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:22:08,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:08,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:08,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:22:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:08,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:08,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:08,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:08,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:08,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:08,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:08,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424486925] [2020-10-15 02:22:08,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:08,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:08,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145598077] [2020-10-15 02:22:08,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:08,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:08,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:08,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:08,990 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 10 states. [2020-10-15 02:22:09,318 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:22:13,254 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-15 02:22:13,835 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-15 02:22:14,180 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-15 02:22:14,330 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:22:14,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:14,590 INFO L93 Difference]: Finished difference Result 670 states and 1067 transitions. [2020-10-15 02:22:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:22:14,591 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-15 02:22:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:14,599 INFO L225 Difference]: With dead ends: 670 [2020-10-15 02:22:14,599 INFO L226 Difference]: Without dead ends: 538 [2020-10-15 02:22:14,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:22:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-15 02:22:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 468. [2020-10-15 02:22:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-10-15 02:22:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 750 transitions. [2020-10-15 02:22:14,659 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 750 transitions. Word has length 145 [2020-10-15 02:22:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:14,660 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 750 transitions. [2020-10-15 02:22:14,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 750 transitions. [2020-10-15 02:22:14,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-15 02:22:14,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:14,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:14,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:22:14,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:14,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1060867361, now seen corresponding path program 1 times [2020-10-15 02:22:14,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:14,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129327030] [2020-10-15 02:22:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:14,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:15,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:17,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:18,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:19,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:19,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:19,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-15 02:22:19,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:22:19,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:22:19,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:19,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-15 02:22:19,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:20,127 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:22:20,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:20,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:22:20,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:20,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:20,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:22:20,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-15 02:22:20,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:22:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:20,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:22:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:20,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:20,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:22:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:20,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:20,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:20,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:20,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:22:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:20,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:20,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:20,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:22:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:20,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:20,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:20,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:22:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:22:20,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:20,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:20,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:20,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:20,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-15 02:22:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:20,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:20,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:20,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:20,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:20,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:20,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:20,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:20,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:20,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:20,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:20,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:20,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129327030] [2020-10-15 02:22:20,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:20,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:20,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617278652] [2020-10-15 02:22:20,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:20,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:20,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:20,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:20,661 INFO L87 Difference]: Start difference. First operand 468 states and 750 transitions. Second operand 10 states. [2020-10-15 02:22:21,010 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:22:21,389 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 02:22:21,953 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:22:22,300 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:22:25,148 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:22:25,387 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:25,613 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:22:26,881 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:27,706 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:27,955 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:22:28,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:28,747 INFO L93 Difference]: Finished difference Result 1449 states and 2316 transitions. [2020-10-15 02:22:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:22:28,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-15 02:22:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:28,754 INFO L225 Difference]: With dead ends: 1449 [2020-10-15 02:22:28,754 INFO L226 Difference]: Without dead ends: 1030 [2020-10-15 02:22:28,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:22:28,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2020-10-15 02:22:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 923. [2020-10-15 02:22:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-10-15 02:22:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1464 transitions. [2020-10-15 02:22:28,832 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1464 transitions. Word has length 148 [2020-10-15 02:22:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:28,832 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1464 transitions. [2020-10-15 02:22:28,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1464 transitions. [2020-10-15 02:22:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 02:22:28,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:28,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:28,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:22:28,836 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:28,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:28,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2092161494, now seen corresponding path program 1 times [2020-10-15 02:22:28,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:28,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115085829] [2020-10-15 02:22:28,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:31,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:31,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:31,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:31,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:33,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:33,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:33,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-15 02:22:33,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,414 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:22:34,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:34,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:22:34,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:34,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:22:34,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-15 02:22:34,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:22:34,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:34,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:22:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:34,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:34,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:34,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:22:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:34,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:34,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:34,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:34,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:22:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:34,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:34,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:34,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:34,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:22:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:34,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:34,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:22:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:35,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:35,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:35,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:35,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:35,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:35,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:35,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:22:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:35,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:35,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:35,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:35,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:22:35,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:35,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:22:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:35,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:35,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:22:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:35,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:35,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:35,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:35,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:35,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:35,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115085829] [2020-10-15 02:22:35,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:35,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:35,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772161071] [2020-10-15 02:22:35,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:35,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:35,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:35,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:35,167 INFO L87 Difference]: Start difference. First operand 923 states and 1464 transitions. Second operand 10 states. [2020-10-15 02:22:35,493 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:22:35,849 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:22:36,365 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-15 02:22:37,058 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 246 [2020-10-15 02:22:41,835 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:22:42,174 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:42,734 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:22:43,049 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:43,924 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:22:44,264 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:45,097 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:22:46,176 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:22:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:47,491 INFO L93 Difference]: Finished difference Result 3492 states and 5517 transitions. [2020-10-15 02:22:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:22:47,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-15 02:22:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:47,508 INFO L225 Difference]: With dead ends: 3492 [2020-10-15 02:22:47,508 INFO L226 Difference]: Without dead ends: 2604 [2020-10-15 02:22:47,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:22:47,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2020-10-15 02:22:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2352. [2020-10-15 02:22:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2352 states. [2020-10-15 02:22:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3684 transitions. [2020-10-15 02:22:47,746 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3684 transitions. Word has length 150 [2020-10-15 02:22:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:47,746 INFO L479 AbstractCegarLoop]: Abstraction has 2352 states and 3684 transitions. [2020-10-15 02:22:47,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3684 transitions. [2020-10-15 02:22:47,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 02:22:47,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:47,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:22:47,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:22:47,756 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:47,757 INFO L82 PathProgramCache]: Analyzing trace with hash -2012553466, now seen corresponding path program 1 times [2020-10-15 02:22:47,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:47,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505607995] [2020-10-15 02:22:47,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:47,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:48,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:50,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:52,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:52,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 02:22:52,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-15 02:22:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,312 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:22:53,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:53,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:22:53,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:53,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:22:53,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-15 02:22:53,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:22:53,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:22:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:22:53,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:22:53,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:22:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:22:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:53,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:53,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:22:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:53,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:53,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:53,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:22:53,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:22:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:53,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:22:53,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:22:53,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:22:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:53,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:22:53,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:22:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:22:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:53,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:53,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:53,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:22:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:53,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505607995] [2020-10-15 02:22:53,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:53,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:53,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993763505] [2020-10-15 02:22:53,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:53,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:53,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:53,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:53,861 INFO L87 Difference]: Start difference. First operand 2352 states and 3684 transitions. Second operand 10 states. [2020-10-15 02:22:54,204 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:22:54,524 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 02:22:54,998 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:22:55,346 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:22:59,125 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:22:59,403 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:22:59,637 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:00,146 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:00,519 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:01,022 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:01,419 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:02,032 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:03,330 INFO L93 Difference]: Finished difference Result 7551 states and 11824 transitions. [2020-10-15 02:23:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:23:03,333 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-15 02:23:03,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:03,358 INFO L225 Difference]: With dead ends: 7551 [2020-10-15 02:23:03,358 INFO L226 Difference]: Without dead ends: 5394 [2020-10-15 02:23:03,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:23:03,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2020-10-15 02:23:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 4909. [2020-10-15 02:23:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4909 states. [2020-10-15 02:23:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 7625 transitions. [2020-10-15 02:23:03,773 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 7625 transitions. Word has length 150 [2020-10-15 02:23:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:03,773 INFO L479 AbstractCegarLoop]: Abstraction has 4909 states and 7625 transitions. [2020-10-15 02:23:03,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:23:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 7625 transitions. [2020-10-15 02:23:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-15 02:23:03,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:03,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:03,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:23:03,786 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:03,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:03,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2010900110, now seen corresponding path program 1 times [2020-10-15 02:23:03,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:03,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506964010] [2020-10-15 02:23:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:03,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:04,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:08,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:08,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-15 02:23:08,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:08,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:23:08,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:08,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:23:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:23:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,257 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:23:09,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:23:09,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-15 02:23:09,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:09,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:23:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:09,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:09,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:09,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:23:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:09,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:09,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:23:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:09,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:09,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:09,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:23:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:09,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:09,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:09,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:23:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:23:09,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:09,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:23:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:23:09,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:23:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:09,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:09,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:09,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:09,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:09,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506964010] [2020-10-15 02:23:09,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:09,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:09,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657689704] [2020-10-15 02:23:09,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:09,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:09,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:09,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:09,748 INFO L87 Difference]: Start difference. First operand 4909 states and 7625 transitions. Second operand 10 states. [2020-10-15 02:23:10,147 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:23:10,542 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-15 02:23:10,969 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:23:12,352 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 249 [2020-10-15 02:23:16,512 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:23:16,842 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:17,491 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:18,571 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:19,713 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:20,128 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:22,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:22,126 INFO L93 Difference]: Finished difference Result 18569 states and 28668 transitions. [2020-10-15 02:23:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:23:22,127 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-15 02:23:22,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:22,184 INFO L225 Difference]: With dead ends: 18569 [2020-10-15 02:23:22,184 INFO L226 Difference]: Without dead ends: 13895 [2020-10-15 02:23:22,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:23:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13895 states. [2020-10-15 02:23:23,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13895 to 12718. [2020-10-15 02:23:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12718 states. [2020-10-15 02:23:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12718 states to 12718 states and 19450 transitions. [2020-10-15 02:23:23,117 INFO L78 Accepts]: Start accepts. Automaton has 12718 states and 19450 transitions. Word has length 151 [2020-10-15 02:23:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:23,117 INFO L479 AbstractCegarLoop]: Abstraction has 12718 states and 19450 transitions. [2020-10-15 02:23:23,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:23:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 12718 states and 19450 transitions. [2020-10-15 02:23:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 02:23:23,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:23,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:23,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:23:23,147 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:23,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1751773006, now seen corresponding path program 1 times [2020-10-15 02:23:23,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:23,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335587735] [2020-10-15 02:23:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:23,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:23,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:24,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:25,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:26,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:26,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-15 02:23:28,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:23:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 02:23:28,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:23:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-15 02:23:28,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:28,583 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:23:28,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:28,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:28,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:28,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:28,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:23:28,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:28,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-15 02:23:28,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:23:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:28,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:23:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:28,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:28,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:28,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:28,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:23:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:28,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:28,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:28,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:28,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:23:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:28,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:28,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:23:28,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:28,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:23:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:28,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:28,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:28,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:28,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:28,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:28,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:28,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:29,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:23:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:29,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:29,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:23:29,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:29,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:23:29,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:29,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:29,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:29,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:23:29,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:29,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-15 02:23:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:29,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:29,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:29,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:29,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:29,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335587735] [2020-10-15 02:23:29,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:29,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:29,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175535948] [2020-10-15 02:23:29,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:29,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:29,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:29,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:29,138 INFO L87 Difference]: Start difference. First operand 12718 states and 19450 transitions. Second operand 10 states. [2020-10-15 02:23:29,526 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:23:29,935 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-15 02:23:30,486 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:23:31,159 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-15 02:23:36,439 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:23:36,797 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:37,368 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:37,679 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:38,604 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:38,960 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:39,974 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:40,424 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:23:41,195 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:23:42,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:42,901 INFO L93 Difference]: Finished difference Result 50139 states and 76495 transitions. [2020-10-15 02:23:42,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:23:42,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-15 02:23:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:43,030 INFO L225 Difference]: With dead ends: 50139 [2020-10-15 02:23:43,030 INFO L226 Difference]: Without dead ends: 37861 [2020-10-15 02:23:43,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:23:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37861 states. [2020-10-15 02:23:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37861 to 34934. [2020-10-15 02:23:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34934 states. [2020-10-15 02:23:46,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34934 states to 34934 states and 52859 transitions. [2020-10-15 02:23:46,310 INFO L78 Accepts]: Start accepts. Automaton has 34934 states and 52859 transitions. Word has length 152 [2020-10-15 02:23:46,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:46,311 INFO L479 AbstractCegarLoop]: Abstraction has 34934 states and 52859 transitions. [2020-10-15 02:23:46,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:23:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand 34934 states and 52859 transitions. [2020-10-15 02:23:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 02:23:46,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:46,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:46,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:23:46,381 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:46,381 INFO L82 PathProgramCache]: Analyzing trace with hash -330567443, now seen corresponding path program 1 times [2020-10-15 02:23:46,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:46,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502780546] [2020-10-15 02:23:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:48,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:23:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-15 02:23:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:51,791 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:23:51,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:51,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:51,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:51,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:51,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:51,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:23:51,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:51,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 02:23:51,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:51,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:23:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:23:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:52,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:23:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:52,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:52,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:52,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:52,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:23:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:52,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:52,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:52,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:52,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:52,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:23:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:52,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:52,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:52,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:52,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:23:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:52,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:52,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:52,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:52,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:52,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:23:52,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:52,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:52,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:23:52,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:52,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:23:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:52,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:52,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:52,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:23:52,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:52,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:23:52,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:52,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:23:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:23:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-15 02:23:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:52,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:52,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:52,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:52,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:23:52,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:52,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:23:52,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:23:52,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502780546] [2020-10-15 02:23:52,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:52,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:23:52,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209598065] [2020-10-15 02:23:52,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:23:52,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:52,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:23:52,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:23:52,383 INFO L87 Difference]: Start difference. First operand 34934 states and 52859 transitions. Second operand 10 states. [2020-10-15 02:23:52,761 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:23:53,094 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 02:23:53,516 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:23:53,864 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:23:59,722 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:00,086 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:24:00,572 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:24:01,259 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:24:01,597 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:24:02,308 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:24:02,608 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:24:03,357 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:24:03,613 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:24:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:05,844 INFO L93 Difference]: Finished difference Result 105728 states and 159338 transitions. [2020-10-15 02:24:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:24:05,846 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-15 02:24:05,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:06,043 INFO L225 Difference]: With dead ends: 105728 [2020-10-15 02:24:06,044 INFO L226 Difference]: Without dead ends: 74484 [2020-10-15 02:24:06,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:24:06,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74484 states. [2020-10-15 02:24:11,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74484 to 68978. [2020-10-15 02:24:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68978 states. [2020-10-15 02:24:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68978 states to 68978 states and 102810 transitions. [2020-10-15 02:24:11,728 INFO L78 Accepts]: Start accepts. Automaton has 68978 states and 102810 transitions. Word has length 152 [2020-10-15 02:24:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:11,728 INFO L479 AbstractCegarLoop]: Abstraction has 68978 states and 102810 transitions. [2020-10-15 02:24:11,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 68978 states and 102810 transitions. [2020-10-15 02:24:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:24:11,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:11,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:11,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:24:11,805 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:11,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash 165814248, now seen corresponding path program 1 times [2020-10-15 02:24:11,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:11,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531726514] [2020-10-15 02:24:11,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:11,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:11,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:15,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:16,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:16,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-15 02:24:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,258 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:24:17,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:17,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:24:17,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:24:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:24:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:24:17,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:24:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:17,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:24:17,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:24:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:17,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:24:17,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:17,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:17,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:24:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:24:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:24:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:24:17,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:24:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:24:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:17,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:17,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:17,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:24:17,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531726514] [2020-10-15 02:24:17,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:17,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:24:17,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934467362] [2020-10-15 02:24:17,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:24:17,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:17,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:24:17,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:24:17,756 INFO L87 Difference]: Start difference. First operand 68978 states and 102810 transitions. Second operand 15 states. [2020-10-15 02:24:18,171 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:18,540 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:24:23,190 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:24:23,932 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:24:24,104 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:24:24,697 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:24:25,211 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:24:25,754 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:24:25,974 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:24:26,152 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:24:27,698 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:24:28,243 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:24:28,681 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:24:29,126 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:24:29,381 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:24:29,554 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:24:29,733 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:24:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:30,021 INFO L93 Difference]: Finished difference Result 104264 states and 156903 transitions. [2020-10-15 02:24:30,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:24:30,025 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 153 [2020-10-15 02:24:30,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:30,288 INFO L225 Difference]: With dead ends: 104264 [2020-10-15 02:24:30,288 INFO L226 Difference]: Without dead ends: 99974 [2020-10-15 02:24:30,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=293, Invalid=829, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:24:30,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99974 states. [2020-10-15 02:24:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99974 to 89086. [2020-10-15 02:24:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89086 states. [2020-10-15 02:24:36,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89086 states to 89086 states and 134446 transitions. [2020-10-15 02:24:36,932 INFO L78 Accepts]: Start accepts. Automaton has 89086 states and 134446 transitions. Word has length 153 [2020-10-15 02:24:36,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:36,933 INFO L479 AbstractCegarLoop]: Abstraction has 89086 states and 134446 transitions. [2020-10-15 02:24:36,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:24:36,933 INFO L276 IsEmpty]: Start isEmpty. Operand 89086 states and 134446 transitions. [2020-10-15 02:24:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:24:37,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:37,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:37,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:24:37,018 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:37,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1523129494, now seen corresponding path program 1 times [2020-10-15 02:24:37,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:37,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324602958] [2020-10-15 02:24:37,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:37,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:37,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:37,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:40,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:42,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:42,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:24:42,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:24:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5661 [2020-10-15 02:24:42,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:42,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:24:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:24:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-15 02:24:42,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,102 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:24:43,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:24:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:24:43,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 02:24:43,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:24:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:24:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:43,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:24:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:24:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:24:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:43,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:24:43,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:43,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:24:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:24:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:24:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:24:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:24:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:24:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:43,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:43,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:24:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:24:43,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324602958] [2020-10-15 02:24:43,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:43,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:24:43,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186789173] [2020-10-15 02:24:43,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:24:43,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:43,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:24:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:24:43,591 INFO L87 Difference]: Start difference. First operand 89086 states and 134446 transitions. Second operand 15 states. [2020-10-15 02:24:44,357 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2020-10-15 02:24:44,717 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:24:49,137 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:24:50,284 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 246 [2020-10-15 02:24:50,572 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-15 02:24:51,282 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-15 02:24:51,984 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-15 02:24:52,883 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-15 02:24:53,244 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 121 [2020-10-15 02:24:53,674 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-15 02:24:53,984 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-15 02:24:55,399 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-15 02:24:56,122 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-15 02:24:56,709 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-15 02:24:57,488 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 123 [2020-10-15 02:24:57,877 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 118 [2020-10-15 02:24:58,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:58,264 INFO L93 Difference]: Finished difference Result 104736 states and 157647 transitions. [2020-10-15 02:24:58,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:24:58,264 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 153 [2020-10-15 02:24:58,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:58,629 INFO L225 Difference]: With dead ends: 104736 [2020-10-15 02:24:58,629 INFO L226 Difference]: Without dead ends: 100254 [2020-10-15 02:24:58,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=271, Invalid=785, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:24:58,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100254 states. [2020-10-15 02:25:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100254 to 89022. [2020-10-15 02:25:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89022 states. [2020-10-15 02:25:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89022 states to 89022 states and 134078 transitions. [2020-10-15 02:25:04,195 INFO L78 Accepts]: Start accepts. Automaton has 89022 states and 134078 transitions. Word has length 153 [2020-10-15 02:25:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:25:04,196 INFO L479 AbstractCegarLoop]: Abstraction has 89022 states and 134078 transitions. [2020-10-15 02:25:04,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:25:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 89022 states and 134078 transitions. [2020-10-15 02:25:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:25:04,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:25:04,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:25:04,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:25:04,261 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:25:04,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:25:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1183489900, now seen corresponding path program 1 times [2020-10-15 02:25:04,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:25:04,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790254328] [2020-10-15 02:25:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:04,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:04,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:06,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:25:09,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:25:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:25:09,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:25:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 02:25:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 02:25:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:09,662 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:25:09,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:09,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:09,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:09,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:25:09,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:09,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:09,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:09,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:25:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:09,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:25:09,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:25:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:09,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:25:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:09,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:09,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:09,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:09,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:09,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:25:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:09,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:09,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:25:09,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:25:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:25:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:25:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:25:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:09,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:25:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:09,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:09,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:09,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:09,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:09,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:09,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:09,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:10,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:25:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:10,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:10,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:25:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:10,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:10,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:10,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:25:10,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790254328] [2020-10-15 02:25:10,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:10,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:25:10,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755811318] [2020-10-15 02:25:10,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:25:10,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:10,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:25:10,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:25:10,049 INFO L87 Difference]: Start difference. First operand 89022 states and 134078 transitions. Second operand 10 states. [2020-10-15 02:25:10,432 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:25:16,135 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:25:16,951 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:25:17,477 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:25:18,374 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:25:22,185 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:25:22,324 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:25:22,525 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:25:22,856 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-15 02:25:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:23,987 INFO L93 Difference]: Finished difference Result 181938 states and 274704 transitions. [2020-10-15 02:25:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:25:23,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-15 02:25:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:24,244 INFO L225 Difference]: With dead ends: 181938 [2020-10-15 02:25:24,244 INFO L226 Difference]: Without dead ends: 136876 [2020-10-15 02:25:24,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:25:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136876 states.